CRANE LOAD RATING MUST NOT BE EXCEEDEDD. DO NOT

ATTEMPT TO TIP THE CRANE TO DETERMINE ALLOWABLE

LOADS.

When either radius or boom length, or both, are between listed values, the smaller of the two listed load ratings shall be used.

Do not operate at longer radii than those listed on the

applicable load rating chart as tipping can occur without a load on the hook.

Cross hatched areas shown on range diagrams indicate the tipping area.

Extending into this area can cause tipping with no load or even tipping with that of pulling down on boom head.

The boom angles shown on the Capacity Chart give an

approximation of the operating radius for a specified boom length. The boom length. The boom angle, before loading, should be greater

Rated loads as shown on the lift chart pertain to this machine as originally manufactured and equipped.

Modifications to the machine or use of optional equipment other than that specified can result in a reduction of capacity.

Do not operate at a radius or boom length where capacities are not listed. At these positions, the machine may overturn without any load on the hook. When either boom length or radius or both are between values listed, the smallest load shown at either the next larger radius or next longer or shorter boom length shall be used

On Outriggers Using Main Boom

To determine the lift capacity when lifting off the main boom with the outriggers set, use the following procedure:

1. Determine the weight of the load to be lifted.

2. Determine the weight of slings, rigging hardware and hook block.

3. Calculate weight of lifted load.

4. Determine load radius, boom angle, and boom length.

5. Determine which load chart to use for your lift. Individual load charts exist for the following lift configurations:

–on outriggers, lifting off main boom with jib stowed or not present

–on outriggers, lifting off main boom with jib erected but unused with jib pullout extension retracted or not present

–on outriggers, lifting off main boom with jib erected but unused with pullout extension extended

–on outriggers with jib erected, jib pullout section retracted or not present, lifting over the jib

–on outriggers with jib erected, jib pullout section extended, lifting over the jib pullout section

–on 16:00 X 25-28 PR tires, lifting over main boom with jib stowed

–on 20:50 X 25-24 PR tires, lifting over main boom with jib stowed

6. If the auxiliary boom head is not erected, add 100 lbs to the chart rated capacity.

7. Compare load weight with chart rated capacity from the boom length, radius, and boom angle.

8. The lifted load must not exceed the chart rated capacity for the boom length and radius.

In this example, the lifted load of 19,575 lbs. is less than the rated load of 27,700 lbs. and can be handled.

All crane load ratings are based on nonuse of the travel function while handling loads. However, cranes may be utilized for pick and carry operations. Traveling with

suspended loads involves so many variables such as ground conditions, boom length, momentum in starting and stopping, etc., that it is impossible to devise a single standard rating procedure with any assurance of safety. For such operations the user must evaluate prevailing conditions and determine safe practices, exercising precautions, such as the following:

1. The boom shall be carried straight over the front of the crane.

2. Travel speed reduced to suit conditions.

3. Maintain specified tire pressures.

4. Avoid sudden starts and stops.

5. Provide tag or restraint lines to snub swinging of the load.

6. Keep the load as close to ground as possible.

7. Set the swing brake and swing lock.

8. The travel surface must be on a smooth level surface that is capable of supporting the weight of the loaded crane. The travel surface must also be free of holes or debris that can

These precautions are necessary to prevent a “pendulum”

effect of a swinging load. The results of this happening can cause a machine tip over.

Any variation from the above conditions will require the operator to consider the prevailing conditions and reduce the lift capacities accordingly.

Always carry the load as near the ground as possible with the minimum boom length necessary to carry the load, and straight over the front with the swing brake locked and swing lock engaged since the rear axle oscillation is locked out when the boom moves off

center more than 10 deg. Travel over uneven terrain with the rear axle oscillation locked out can result in

instability. Also, excessive boom length can result in instability due to effect of uneven terrain and wind pressure.

Insufficient tire pressure reduces the “ON TIRES”

capacity. Attempts to pick rated capacity without properly inflated tires may cause crane to tip and/or result in damage to tires and rims.

The axle lockout system should be bled and filled whenever oil seepage, dirt or oil is detected at the breather plug or on the rod.

Air in the axle lockout system decreases stability. Bleed and fill the system IMMEDIATELY when ever this condition occurs

Excessive high hydraulic oil temperatures cause rapid deterioration of rubber components (hose, O-rings etc.).

A hydraulic oil cooler is required if high cyclic operations (clam, concrete bucket, unloading) are performed. If hydraulic reservoir temperature reaches 200 deg. F, reduce the duty cycle. Stop

operations as required to prevent further increase in the hydraulic oil temperature.