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WARNING! Dynamic shock loads are created by quick opening and
closing of the release valve when lowering the load. The resulting
overload may cause the hydraulic system to failure, which could result
in severe personal injury and/or property damage.
Inspect the crane at the beginning of the day before lifting. Any defects or
problems should be corrected before use.
The crane has two options for lifting and moving cargo: by hydraulic jack or by
manual winch. You can use them together or separately to lift a load.
1.
Determine the load' s weight.
2.
Adjust the boom extension position to 1,000 lb or 2,000 lb, based on the
load' s weight. Reinsert the bolt and secure with the washers and nut used
during assembly. The weight capacity of the boom arm is written next to
each bolt hole on the boom.
3.
Position the vehicle so the crane can reach the load. Do this after
adjusting the boom extension arm in the previous step.
4.
Keep the vehicle as level as possible during operation and always lift the
load straight up.
5.
Loosen the base handle and rotate the crane until it is over the load.
6.
To prevent the boom from swinging freely, always tighten the base handle
before lifting a load, after the load is positioned or when storing the crane
after use.
7.
Always use outriggers (jack legs) from the truck to the ground. Be sure
these are firm and adequately positioned.
RAISING A LOAD
1.
Close the release valve. Insert the slotted end of the handle over the valve
and twist to the right.
2.
Insert the handle (#16) into the bottle jack's receiver.
3.
Pump the handle until the load reaches the desired height.
LOWERING A LOAD
WARNING! Dynamic shock loads are created by quick opening and
closing of the release valve when lowering the load. The resulting
overload may cause the hydraulic system to failure, which could result
in severe personal injury and/or property damage.
WARNING! Before lowering the load, ensure that there are no
obstructions underneath and that all people are standing clear.
www.princessauto.com / 1-800-665-8685
TRUCK MOUNT CRANE
V1.0
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