Section 01

(1)

J Juunnee 11999977 HHTT--440000 DDeessccrriippttiioonn 11--11







 



 













Assembled Pump

                                                                                                                                                                                             P

Poowweer r EEnndd SSppaacceerr FFlluuiid d EEnndd

Figure 1.1 —The HT-400 pump is used Figure 1.1 —The HT-400 pump is used in all phases of oilfield operation to in all phases of oilfield operation to pump water, cement, fracturing fluids, pump water, cement, fracturing fluids, and other stimulation fluids. The three and other stimulation fluids. The three main parts of the pump are (1) the main parts of the pump are (1) the power end, (2) a spacer, and (3) the power end, (2) a spacer, and (3) the fluid end.

fluid end.

 

(2)

(3)

1

1--22 HHTT--44000 0 PPuummp p MMaaiinntteennaanncce e anand d RReeppaaiir r MMaannuuaall JJuunne e 1199997 7

                             

Power End

                                                                                                                                                                                                          

Spacer

                                                                                                                                                   

Fluid End

                                                                                                

(4)

                                                            

Design Features

                                                                                                         

HT-400 Power End

Case

                                                                                                                   

Worm-Gear/Input-Shaft Drive Flange

                                                                                          

(5)

1-4 HT-400 Pump Maintenance and Repair Manual June 1997 F i g u r e 1 . 2 A — H T - 4 0 0 r i g h t - h a n d p o w e r e n d w i t h a n L - 4 S p a c e r , C o n e d r i v e , a n d 6 - i n . f l u i d e n d . S l i g h t d i f f e r e n c e s i n t h e r i g h t - h a n d a n d l e f t - h a n d p u m p s a r e d i s c u s s e d o n P a g e 1 - 1 0 . 2 1 1 9 6 8 7 5 1 2 3 1 1 1 0 1 5 9 2 6 3 9 4 2 4 3 3 8 4 1 2 8 2 7 2 5 4 0 3 5 3 6 2 9 3 0 3 1 3 2 3 7 3 3 3 4 3 0 2 9 3 3 3 1 3 2 2 2 T o H e a t E x c h a n g e r V i e w A

(6)

View B

Figure 1.2B—Section view of an HT-400 pump power-end section through the crankshaft.

20 12 13 12 17 14 24 3 23 4 18 16 44

Table 1.1—List of Locations on Cross-Sectioned Pump (Figures 1.2A and 1.2B)

Loc Description Loc Description Loc Description

1 Companion Flange 16 Thrust Ring 31 Valve Seat

2 Worm Gear 17 Gear-Support Bearing 32 Valve-Seat O-ring

3 Ring Gear 18 Flanged Stud 33 Guide-Bushing Retainers

4 Flange-Gear/Spline-Drive Coupling 19 Crosshead 34 Suction-Valve Stop

5 Connecting Rod and Bearings 20 Injector 35 Discharge-Valve Cover

6 Connecting-Rod Pins 21 Bypass Valve 36 Cover Retainer

7 Crosshead Shoes 22 Gauges 37 Cylinder-Head Cover

8 Crosshead Slides 23 Gear Lugs 38 Packing

9 Worm-Thrust Bearing 24 Gear Washers 39 Wiper Seal

10 Worm Radial Bearing—Thrust End 25 Fluid-End Section 40 Top Tie-Bolt

11 Worm Radial Bearing—Drive End 26 Plunger 41 Bottom Tie-Bolt

12 Crankshaft Main Bearing—Narrow 27 Plunger Tie-Bolt 42 Wiper Gland

13 Crankshaft Main Bearing—Wide 28 Plunger Nose 43 Packing Nut

14 Gear-Support Bearing 29 Frac Valve 44 Crankshaft/Spline-Drive Coupling

15 Oil Pump 30 Valve Insert

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1-6 HT-400 Pump Maintenance and Repair Manual June 1997

Worm and Ring Gears

                                                                                     

Crankshaft

                                                         

Connecting Rods, Crossheads, and Slides

                                                                                                

Bearings

                                                                      

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Shims

                                                                                                                                                          

Lube System

                                                                                                                 

(9)

Injector and Magnetic Seal

                                                                                                                                          

Oil Pump

                                                              

Figure 1.3—The Schroeder strainer and filter are used on HT-400 pumps built after April 1974.

(10)

Bypass Valve

                                                                                                                                                                   

Oil Filter/Strainer System

                                                                                                      

Heat Exchanger

                                                                                                  

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1-10 HT-400 Pump Maintenance and Repair Manual June 1997                                                   

Gauges

                                                            

Right- and Left-Hand Pumps

                                                                                                                                                                                                                                    

(12)

Figure 1.4—To maximize available space, operators can choose a right- or left-hand power end. The difference between the units is the position of the housing from the fluid- end view.

Fluid End

Fluid-End Sections

                                                                        Right Left

(13)

1-12 HT-400 Pump Maintenance and Repair Manual June 1997    _                                                                                                                                                                                    

Plungers

                                                                                                                                                                                        

(14)

Figure 1.5—Valves direct the fluid that is moved by the plunger.

(A.) As the plunger is withdrawn from a fluid-end section, a partial vacuum is created. (B.) As the plunger re-enters the fluid-end section, the fluid is pressurized.

Valves

                                                                                                                                                                                                                       _               _                 

(15)

1-14 HT-400 Pump Maintenance and Repair Manual June 1997                                                                                 

Ball Valves

                                                    

Figure 1.6—Typical 2-in. ball valve.

Special Discharge Cover Special Suction Stop

Wave Spring Short Cage

2-in. Ball Ball Valve Insert Drop-In Seat Frac Valve Insert

Discharge

(16)

                             _{     }                                  

Valve Springs

                                                                                                          

Valve Seats

                                                                                                                                                                                   

(17)

Guide-Bushing Retainers

                                                                                                   

Suction-Valve Stops

                                                                                 

Valve Covers

                                                                                               

Cylinder-Head Covers

                                                                           

(18)

                                                                    

Pressure Packing

                                                             

Short Packing

                                                                                                                 

Conventional V Packing

                                                                   