4.3 Boom And Cylinder Assembly; Removal; Installation - JLG T500J Service And Maintenance Manual

SECTION 4 - BOOM & PLATFORM

4.3 BOOM AND CYLINDER ASSEMBLY

Removal

1. Using an adequate supporting device, support the
weight of the boom and cylinders assembly.
NOTE: The boom and cylinder assemblies weigh approximately
1905 lbs. (864 kg).
2. Tag and disconnect all hoses and wiring in the turntable
that runs to the boom.
3. Remove the bolt, keeper pin, and pivot pin that secures
the tower boom link to the turntable.
4. Remove the bolt, keeper pin, and pivot pin that secures
the tower boom to the turntable.
5. Using an adequate lifting device, position straps around
the boom and cylinders assembly, taking care to ensure
the weight of the assembly is evenly distributed.
NOTE: The boom and cylinder assemblies weigh approximately
1905 lbs. (866 kg).
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6. Lift the assembly away from the machine and lower it
onto proper supporting devices.

Installation

1. Using an adequate lifting device, position straps around
the boom and cylinders assembly, taking care to ensure
the weight of the assembly is evenly distributed.
NOTE: The boom and cylinder assemblies weigh approximately
1905 lbs. (866 kg).
2. Lower the boom and cylinder assembly into position on
the machine.
3. Install the pivot pin, keeper pin, and bolt that secures
the tower boom to the turntable.
4. Install the pivot pin, keeper pin, and bolt that secures
the tower boom link to the turntable.
5. Connect all hoses and wiring in the turntable that runs
to the boom as tagged during removal.
6. Operate all boom functions and check for proper opera-
tion or any leakage.
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