TM 5-3895-374-24-2
3-6-8 Drum Lift Hoist
Removal, Repair and Replacement See figure 3-39.
This procedure assumes a complete removal, repair and replacement of the assembly.
A partial disassembly repair and replacement is possible. Follow the procedure to the
point of removing only those components requiring repair or replacement.
A. Disassembly
1.
Remove the drum clamp from the chain hoist.
2.
Unplug the power cable to the chain hoist and remove it from the trolley.
3.
Remove the trolley from the jib following the instructions in Section 3-6-9.
4.
The jib is removed by taking the lock pin out of the pin through the top of the jib
pole and lifting the jib with a crane or hoist.
5.
The two bearings that allow the jib to swivel can be removed after the jib is off.
6.
The main jib pole is removed by lifting it out of the support tube once the pin in
the bottom has been removed.
B. Inspection
1.
Inspect the drum clamp for damage, wear or cracks. Repair or replace the
clamp as necessary.
2.
Repair the chain hoist according to the instructions in Section 3-6-10.
3.
Repair the trolley according to the manufacturer’s instructions in Section 3-6-9.
4.
Clean and inspect the bearings for wear or damage. Replace an necessary.
5.
Inspect the swivel and main jib poles for cracks or damage. Repair as required.
C. Assembly
1.
Install the main jib pole in the support tube. Install the pin and lock pin.
2.
Grease the bearings and install them onto the main jib pole.
3.
Install the swivel jib pole onto the main jib pole. Install the pin and lock pin.
4.
Install the trolley, chain hoist and drum clamp.
5.
Plug in the power cable to the chain hoist.
page 3 - 872
