ONLY QUALIFIED PERSONNEL SHOULD ADJUST ONLY QUALIFIED PERSONNEL SHOULD ADJUST RELIEF VAL
RELIEF VALVES ANVES AND HYDD HYDRAULIC PRESSURES.RAULIC PRESSURES.
HYDRAULIC OIL UNDER HIGH PRESSURE CAN HYDRAULIC OIL UNDER HIGH PRESSURE CAN CAUSE SERIOUS INJURY—MAKE SURE ALL CAUSE SERIOUS INJURY—MAKE SURE ALL HYDRAULIC CONNECTIONS ARE TIGHT TO HYDRAULIC CONNECTIONS ARE TIGHT TO PREVENT HOT
PREVENT HOT, HIGH PRESSURE , HIGH PRESSURE OIL FROMOIL FROM PENETRATING
PENETRATING AND BURNING SKIN. AND BURNING SKIN. TOTO PREVENT INJURY AND MACHINE DAMAGE, DO PREVENT INJURY AND MACHINE DAMAGE, DO NOT TURN ON ANY HYDRAULIC SYSTEM WITH NOT TURN ON ANY HYDRAULIC SYSTEM WITH DEADHEADED, PLUGGED, OR CAPPED LINES DEADHEADED, PLUGGED, OR CAPPED LINES UNTIL YOU HAVE ADJUSTED THE RELIEF VALVES UNTIL YOU HAVE ADJUSTED THE RELIEF VALVES TO A MINIMUM SETTING.
TO A MINIMUM SETTING.
NOTE
NOTE: All tests and adjustments should be performed when hydraulic oil is warm (130° F (55°
C)).
To adjust the hydraulic pressures on the C-650, a 3000 psi (207 bar) pressure gauge and various fittings are needed. To find out exactly what fittings are needed, read the appropriate description below before beginning adjustments.
ADJUST TRAVEL/PT
ADJUST TRAVEL/PTA/OPTIONAL A/OPTIONAL CONSOLECONSOLE VIBRAT
VIBRATOR CIRCUIOR CIRCUIT PRESSURE:T PRESSURE:
To adjust the travel/PTA/optional console vibrator pressure, a 3000 psi (207 bar) pressure gauge connected to a3 ⁄ 8 inch (13 mm) female quick coupler
5-14 C-650-F/S
C-650-F/S
is needed. Connect the pressure gauge to the PTA male quick coupler.
016--0090A
Travel E-Stop vented relief The travel/PTA/optional console vibrator relief is on the output port of the rear stage of the console pump.
Loosen the locking nut on the vented relief and turn the relief adjusting screw out (counterclockwise) 3 to 4 complete turns.
If the machine is equipped with one or more console vibrators, disconnect the vibrators and loop the vibrator hoses coming from the console. Turn the vibrator variable(s) on the additional vibrators all the way off (completely clockwise).
Make sure all controls and gauges are in the “neutral”
or “off” position. Start the engine and allow it to idle, and reset the E-Stop system. Make sure the travel control valve is in the “neutral” position. If the console is equipped with a travel/vibrator on/off switch, place it in the “on” position.
Place the PTA valve in the “up” position and slowly rotate the bogie variable travel control in the
“increase” direction (clockwise) while watching the pressure gauge connected to the PTA quick coupler.
If the pressure gauge begins to exceed 2150 psi (148 bar), quickly rotate the bogie variable travel control counterclockwise to the “off” position. Turn the relief adjusting screw on the E-Stop vented relief out (counterclockwise) 3 or 4 more turns. Repeat until the gauge reads less than 2150 psi (148 bar) with the bogie variable travel control turned completely clockwise.
016-0057
Oil temperature gauge Increase engine rpm to maximum (2150 rpm) and allow the engine to run until the hydraulic oil temperature gauge reads 130° F (55° C). When the oil is at 130° F (55° C) check the pressure gauge connected to the “left pressure” quick coupler.
If the gauge reads more than 2150 psi (148 bar) when the hydraulic oil temperature gauge reads 130° F (55°
C), turn the relief on the E-Stop vented relief out (counterclockwise) until it reads 2150 psi (148 bar).
Tighten the locknut on the E-Stop vented relief securely.
If the gauge reads less than 2150 psi (148 bar) when the hydraulic oil temperature gauge reads 130° F (55°
C), turn the relief adjusting screw on the E-Stop vented relief in (clockwise) until the gauge reads 2150 psi (148 bar). Tighten the locknut on the E-Stop vented relief securely. Place all controls in the
“neutral” or “off” position and shut off the engine.
Before connecting quick couplers, thoroughly clean them to prevent dirt from entering the hydraulic system. Connect the protective covers together to keep the covers clean when the quick couplers are connected. After disconnecting quick couplers, always place the protective covers over/in them to keep dirt from entering the hydraulic system.
Reconnect the PTA quick couplers. Proceed to the next section: Adjust optional console vibratorAdjust optional console vibrator pressures.
pressures.
ADJUST OPTIONAL CONSOLE VIBRATOR ADJUST OPTIONAL CONSOLE VIBRATOR PRESSURES.
PRESSURES.
Follow the directions in the section above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
Follow the directions below to set the relief pressure for one optional console vibrator circuit. If the machine is equipped with more than one optional
C-650-F/S C-650-F/S
console vibrator circuit, repeat the procedure below on each additional console vibrator circuit.
098-0180B
Console vibrator relief
Disconnect the console vibrator quick couplers and connect a 3000 psi (207 bar) pressure gauge to the male quick coupler. Loop the hoses on any additional console vibrator circuits. Loosen the locknut on the vibrator variable relief adjusting screw (on the top of vibrator variable) and turn the adjusting screw out (counterclockwise) 3 or 4 turns.
Place all controls in the “neutral” or “off” position.
Turn the console vibrator variable(s) completely clockwise to the “0” position. While the console hydraulic oil temperature is still at 130° F (55° C), start the engine and let it idle. Reset the E-Stop system. If the console is equipped with a travel/vibrator on/off switch, place it in the “on” position.
Slowly rotate the console vibrator variable connected to the pressure gauge while watching the pressure gauge. If the pressure gauge begins to exceed 1850 psi (127 bar), quickly turn the vibrator variable completely counterclockwise to the “0” position. Turn the vibrator variable relief adjusting screw out (counterclockwise) 3 to 4 more complete turns.
Repeat until the gauge reads less than 1850 psi (127 bar) with the vibrator variable turned completely counterclockwise.
Increase the engine speed to maximum. Turn the relief adjusting screw in (clockwise) or out (counterclockwise) until the pressure gauge reads 1850 psi (127 bar).
Place all controls in the “neutral” or “off” position and shut off the engine. Tighten the locknut on the vibrator variable relief adjusting screw securely.
Remove the pressure gauge and reconnect the console vibrator quick couplers to the correct vibrator.
Repeat the procedure above on any additional
console vibrator circuits and proceed to the next section: Adjust the carriage pressureAdjust the carriage pressure.
Before connecting quick couplers, thoroughly clean them to prevent dirt from entering the hydraulic system. Connect the protective covers together to keep the covers clean when the quick couplers are connected. After disconnecting quick couplers, always place the protective covers over/in them to keep dirt from entering the hydraulic system.
ADJUST CARRIAGE PRESSURE:
ADJUST CARRIAGE PRESSURE:
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
016-0065
Carriage E-Stop vented relief
The carriage E-Stop vented relief is on the output port of the front stage of the console pump. Loosen the locking nut on the vented relief and turn the relief adjusting screw out (counterclockwise) 3 to 4 complete turns. Disconnect the two large quick couplers between the console and the hose reel.
Place all controls in the “neutral” or “off” position.
While the console hydraulic oil temperature is still at 130° F (55° C), start the engine and allow it to idle.
Reset the E-Stop system.
5-16 C-650-F/S
C-650-F/S
016-0050A
Carriage pressure gauge Slowlymove the carriage travel control towards the
“on” position while watching the carriage pressure gauge on the front of the console. If the pressure gauge begins to exceed 2350 psi (162 bar), quickly move the carriage travel control to the “off” position.
Turn the carriage E-Stop vented relief adjusting screw out (counterclockwise) 3 to 4 more complete turns.
Repeat until the gauge reads less than 2350 psi (162 bar) with the carriage travel control placed in the in the “on” position.
Increase the engine speed to maximum (2150 rpm).
Turn the relief adjusting screw in (clockwise) or out (counterclockwise) until the pressure gauge reads 2350 psi (162 bar).
Place all controls in the “neutral” or “off” position and shut off the engine. Tighten the locknut on the carriage E-Stop vented relief securely. Reconnect the large quick couplers between the console and the hose reel. Proceed to the next section: AdjustAdjust single- or double-drum relief pressure single- or double-drum relief pressure.
ADJUST SINGLE- OR DOUBLE-DRUM RELIEF ADJUST SINGLE- OR DOUBLE-DRUM RELIEF PRESSURE:
PRESSURE:
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
A 3000 psi (207 bar) pressure gauge connected to a
1 ⁄ 2 inch (13 mm) male quick coupler is needed to adjust the drum relief pressure.
008-0272B
Pressure gauge connected to drum pressure quick coupler
Disconnect the1 ⁄ 2 inch (13 mm) quick couplers going to the drum (if the undercarriage is equipped with adjustable augers, make sure they are disconnected also). Connect the pressure gauge with the1 ⁄ 2 inch (13 mm) male quick coupler to the female quick coupler on the drum hose coming from the flow divider.
016-0091
Drum circuit relief valve
While the console hydraulic oil is still at 130° F (55°
C), remove the acorn nut from the top of the drum relief. Loosen the locking nut and turn the relief adjusting screw out (counterclockwise) 3 to 4 complete turns.
Place all controls in the “neutral” or off position, start the engine, and allow it to idle. Reset the E-Stop system. Slowly move the carriage travel control on the console to the “on” position while watching the gauge connected to the1 ⁄ 2 inch (13 mm) drum pressure quick coupler.
If the pressure gauge begins to exceed 2150 psi (148 bar), quickly move the carriage travel control back to the “off” position. Turn the carriage drum relief
C-650-F/S C-650-F/S
adjusting screw out (counterclockwise) 3 to 4 more complete turns. Repeat until the gauge reads less than 2150 psi (148 bar).
Increase the engine speed to maximum (2150 rpm).
Turn the relief adjusting screw in (clockwise) or out (counterclockwise) until the pressure gauge reads 2150 psi (148 bar).
Place all controls in the “neutral” or “off” position and shut off the engine. Securely tighten the locknut on the drum relief adjusting screw and replace and securely tighten the acorn nut. Remove the pressure gauge and reconnect the quick couplers to the drum(s). Proceed to the next section: Adjust the Adjust the single- or double-drum counterbalance pressure single- or double-drum counterbalance pressure.
Before connecting quick couplers, thoroughly clean them to prevent dirt from entering the hydraulic system. Connect the protective covers together to keep the covers clean when the quick couplers are connected. After disconnecting quick couplers, always place the protective covers over/in them to keep dirt from entering the hydraulic system.
ADJUST THE SINGLE- OR DOUBLE-DRUM ADJUST THE SINGLE- OR DOUBLE-DRUM COUNTERBALANCE PRESSURE:
COUNTERBALANCE PRESSURE:
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
008-0057
Drum quick couplers connected Make sure both1 ⁄ 2 inch (13 mm) female quick couplers are connected to the undercarriage drum motor(s) (if the undercarriage is equipped with adjustable augers, make sure they are also connected normally). Make sure the finishing drums are not in contact with anything and will be able to turn freely.
Place all controls are in the “off” or “neutral” position.
While the hydraulic oil is still at 130° F (55° C), start the engine and increase engine speed to maximum rpm (2150 rpm). Reset the E-Stop system. Place the
carriage travel control on the console in the “on”
position to start drum rotation.
W
WARNING!
WARNING!
! !
TO PREVENT SERIOUS INJURY, KEEP CLEAR OF TO PREVENT SERIOUS INJURY, KEEP CLEAR OF MOVING DRUM(S) AND AUGERS.
MOVING DRUM(S) AND AUGERS.
016-0092
Drum counterbalance valve and pressure gauge While the drum(s) turn freely, check the pressure gauge plumbed into the counterbalance valve manifold. If the gauge reads 500 psi (35 bar) as the drum(s) turn freely, the drum counterbalance pressure is set correctly. Place all controls in the “off” or
“neutral” position and shut off the engine. Replace the locknut on the counterbalance relief and tighten securely. Proceed to the next section: Adjust theAdjust the carriage drive pressure
carriage drive pressure.
If the gauge does not read 500 psi (35 bar) as the drum(s) turn freely, loosen the locknut on the relief valve and turn the adjusting screw out
(counterclockwise) to increase the pressure or in (clockwise) to decrease the pressure.
NOTE:
NOTE: The counterbalance relief adjustment is opposite of a standard relief setting. Turning the adjusting screw “in” (clockwise) decreases the pressure and “out” (counterclockwise) increases the pressure.
When the counterbalance pressure gauge reads 500 psi (35 bar), place all controls in the “off” or “neutral”
position and shut off the engine. Replace the locknut on the counterbalance relief and tighten securely.
Proceed to the next section: Adjust the carriageAdjust the carriage drive pressure
drive pressure.
ADJUST THE CARRIAGE DRIVE PRESSURE:
ADJUST THE CARRIAGE DRIVE PRESSURE:
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
5-18 C-650-F/S
C-650-F/S
Reverse the directions in Chapter III, Section 18—Chapter III, Section 18—
Install the carriage drive chains
Install the carriage drive chains to remove the carriage chains from the carriage and machine frame.
Disconnect the1 ⁄ 2 inch (13 mm) hose coming from the
“CF” port in the carriage travel variable valve on the carriage. Install a T-fitting in the “CF” port with a 3000 psi (207 bar) pressure on one outlet and a cap on the other outlet. Remove the acorn nut covering the carriage variable travel relief adjusting screw (on top of the carriage variable travel valve) and turn the adjusting screw out (counterclockwise) 3 or 4 turns.
016-0067
Carriage variable travel and relief valve Place all controls in the “neutral” or “off” position.
While the console hydraulic oil temperature is still at 130° F (55° C), start the engine and allow it to idle.
Reset the E-Stop system. Place the carriage travel control on the console in the “on” position. Slowly rotate the carriage travel variable on the carriage clockwise while watching the pressure gauge attached to the T-fitting.
If the pressure gauge begins to exceed 2150 psi (148 bar), quickly move the carriage variable travel control counterclockwise to the “0” position. Turn the carriage variable travel relief adjusting screw out
(counterclockwise) 3 to 4 more complete turns.
Repeat until the gauge reads less than 2150 psi (148 bar) with the carriage variable travel control rotated completely clockwise.
Increase the engine speed to maximum (2150 rpm).
Turn the relief adjusting screw in (clockwise) or out (counterclockwise) until the pressure gauge reads 2150 psi (148 bar).
Place all controls in the “neutral” or “off” position and shut off the engine. Replace the acorn nut on the carriage variable travel relief adjusting screw and tighten securely. Proceed to the next section: Adjust Adjust the carriage drive counterbalance pressure the carriage drive counterbalance pressure.
ADJUST THE CARRIAGE DRIVE ADJUST THE CARRIAGE DRIVE COUNTERBALANCE PRESSURE:
COUNTERBALANCE PRESSURE:
The carriage drive counterbalance valves keep the carriage from moving faster than it is designed to move. To keep the carriage from moving when paving a flat slab, set the counterbalance valves to 500 psi (35 bar) To keep the carriage from moving when paving a slope, set the counterbalance valves to at least 700 psi (48 bar). If the carriage continues to move down the slope when the carriage variable control is in the “0” position, or moves too quickly down the slope (because of the angle of slope or the weight of the carriage), set the counterbalance valves higher than 700 psi (48 bar).
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
Remove the cap from the T-fitting (installed in the Adjust the carriage drive pressure
Adjust the carriage drive pressure section above) and connect the1 ⁄ 2 inch hose from the cushion cylinder (normally connected to the “CF” port on the carriage variable travel valve) to the open port in the T-fitting. Disconnect both quick couplers going to the drum drive motors and optional adjustable augers.
016-Carriage drive counterbalance valves While the console hydraulic oil is still at 130° F (55°
C), rotate the carriage variable travel valve on the carriage fully clockwise. Place all other controls in the
“neutral” or “off” position.
W
WARNING!
WARNING!
! !
TO PREVENT SEVERE INJURY, DO NOT CONTACT TO PREVENT SEVERE INJURY, DO NOT CONTACT ROTATING SPROCKETS.
ROTATING SPROCKETS.
Start the engine and pull the throttle out all the way.
Reset the E-Stop system. Place the carriage travel valve on the console in the “on” position to start rotating the carriage drive sprockets.
C-650-F/S C-650-F/S
As the carriage drive sprockets turn, check the pressure gauge teed into the “CF” port on the carriage variable travel valve. The gauge should read 500 psi (35 bar) (700 psi (48 bar) or more for slope paving) as the carriage sprockets turn. Push or pull the carriage shift rod on the back of the carriage to change the rotation of the carriage drive motors. The gauge should read 500 psi (35 bar) (700 psi (48 bar) or more for slope paving) as the carriage sprockets turn in the opposite direction.
If the gauge reads 500 psi (35 bar) (700 psi (48 bar) or more for slope paving) as the carriage drive sprockets turn in both directions, the counterbalance reliefs are set correctly. Place all controls in the “off”
or “neutral” position and shut off the engine. Remove the T-fitting and gauge and reconnect the1 ⁄ 2 inch hose to the “CF” port on the carriage variable travel valve.
Proceed to the next section: Adjust single- orAdjust single- or double-drum circuit pressure
double-drum circuit pressure
If the carriage pressure gauge does not read 500 psi (35 bar) (700 psi (48 bar) or more for slope paving) as the carriage drive sprockets turn in one direction, one of the counterbalance valves needs to be adjusted (each counterbalance valve controls the
counterbalance pressure against the carriage drive motors when the carriage drive sprockets turn in only one direction).
To adjust the counterbalance pressure, loosen the locknuts on both relief valves and turn the screw on one relief out (counterclockwise) to increase the pressure or in (clockwise) to decrease the pressure.
NOTE:
NOTE: Counterbalance valves are adjusted in the opposite direction from standard relief valves.
Turn the screw in (clockwise) to decrease counterbalance pressure. Turn the screw out (counterclockwise) to increase counterbalance pressure.
If one of the counterbalance valves has no effect on the pressure as the carriage drive sprockets turn in one direction, adjust the other counterbalance valve.
Adjust both relief valves until the carriage pressure gauge reads 500 psi (35 bar) as the carriage drive sprockets turn in both directions.
When both counterbalance pressures are correct, place all controls in the “off” or “neutral” position and shut off the engine. Replace the locknuts on the reliefs and tighten securely. Remove the T-fitting and gauge and reconnect the1 ⁄ 2 inch hose to the “CF” port on the carriage variable travel valve. Proceed to the next section: Adjust optional carriage vibrator Adjust optional carriage vibrator relief(s)
relief(s).
ADJUST OPTIONAL CARRIAGE VIBRATOR ADJUST OPTIONAL CARRIAGE VIBRATOR RELIEF(S):
RELIEF(S):
Follow the directions in the sections above to heat the console hydraulic oil to 130° F (55° C) and set the preceding circuit pressures correctly.
A 3000 psi (207 bar) pressure gauge connected to a
3 ⁄ 8 inch (10 mm) female quick coupler is needed to set vibrator relief pressure(s). If the carriage is equipped with more than one vibrator circuit, repeat the procedure below to set the pressures on all circuits.
3 ⁄ 8 inch (10 mm) female quick coupler is needed to set vibrator relief pressure(s). If the carriage is equipped with more than one vibrator circuit, repeat the procedure below to set the pressures on all circuits.