REMOVAL - TM-10-3930-607-150220

UPRIGHTS

3. Disconnect the load chains from the carriage and

rotate, the intermediate upright will be pushed up by the

slide the carriage out of the bottom of the inner upright,

cylinder guide. The second stage will continue until a

using a sling and a hoist to support it when the load

lug on the back of the carriage engages and rotates the

rollers clear the channels.

front latch, unlocking the left rear latch of the inner

upright. This releases the crosshead from the inner

4. Remove the chain adjusting nuts from the chain

upright.

anchors.

Pull the anchors and chains off their

respective rollers.

The third stage begins when the crosshead is unlatched

from the inner upright and rises until the cylinder is fully

5. Remove the lowering control valve from the

extended. When this occurs, the center load rollers of

bottom of the cylinder, and the screws attaching the

the carriage are at the top of the inner upright.

cylinder guide to the crosshead.

The sequence of events during lowering of the upright is

6. Attach a hoist to the cylinder, and remove the

the reverse of the foregoing.

slack from the slinging. Slide the cylinder toward the top

of the uprights far enough to disengage the hoist pilot

B. REMOVAL

from the hole in the mounting pad. Lift the cylinder and

crosshead assembly out.

1. Remove the load arms. Loosen the cylinder

guide screws only if the hoist cylinder is to be removed,

7. Remove the guide stop screws from the bottom

of the guide rails, Slide the cylinder guide towards the

2. Attach a hoist to the top of the upright assembly,

bottom of the upright until it is clear of the guide rails,

making sure that the inner, intermediate and outer

Lift the guide out, It is not necessary to remove the

uprights are secured by the slinging, Remove slack from

guide shoes from the guide unless they are worn or

the slinging,

need adjusting.

3. Mark hanger caps to facilitate installation in the

8. Working with the two rear latches on the inner

original position.

upright, rotate the left latch while pulling out on the inner

upright. Release the left latch when the lug disengages

4. Disconnect the hydraulic lines from the bottom of

the right latch.

the hoist cylinder. Cap all hydraulic openings.

9. Pull inner upright out far enough to enable

5. Disconnect the tilt cylinders from the upright.

removing the lug that locks the inner upright to the

intermediate and the pad near the bottom of the

6. Lower the upright assembly from the frame.

uprights. Remove the pad and the lug.

C. DISASSEMBLY

10. Slide the inner upright down. Remove the load

rollers from the bottom of the inner upright and the load

1. Place the upright assembly in a horizontal

rollers from the top of the intermediate upright.

position and support it on both ends of the outer upright.

11. With the aid of a hoist and sling, slide the inner

2. Remove the safety lug from the back of the

upright out of the top of the intermediate upright.

carriage.

B-184