Lull 1044C-54 Series II Service Manual User Manual

Page 148

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Boom and Transfer

6-6

31200079

1. Pull back boot (Item 17) so that access to retainer (Item 19) and flange

(Item 20) can be made.

2. Loosen and remove four (4) socket head capscrews (Item 16) and one

(1) clip (Item 15) that secure retainer and flange to joystick body
(Item 24). Separate body from joystick handle assembly.

3. Disassemble joystick body assembly as follows:

a. Loosen and remove three (3) socket head capscrews (Item 21)

securing manifold (Item 22) to body.

b. Remove O-ring (Item 23) from manifold. Discard O-ring.

c. The following steps are required to remove parts (Items 25 thru 36)

located in each port:

Note: Because the spools (Item 32) may differ from each other, it is

strongly recommended that when they are removed, they should
be removed one at a time and then reinstalled before another is
removed.

1). Loosen and remove one (1) of the four (4) ported guides

(Item 36) from body.

2). Remove two (2) O-rings (Items 34 and 35) from ported guide.

Discard O-rings.

3). Remove spool (Item 32) and spring (Item 33) from body.

4). Remove guide assembly (Items 25 thru 31) from body.

5). Remove O-ring (Item 27) from guide (Item 26). Discard O-ring.

6). Clean remaining parts with solvent. Dry with compressed air.

Inspect and replace if damaged.

Note: Items 25 thru 31 cannot be purchased individually. The O-ring

(Item 27) can only be purchased as a part of a seal kit. If any of the
remaining parts become damaged, it will be necessary to purchase
a complete new guide assembly.

7). Inspect open port in body and clean as necessary.

8). Obtain O-ring (Item 27) from seal kit. Lubricate O-ring before

installing it.

9). Install new O-ring on guide (Item 26). Lubricate and install

guide assembly (Items 21 thru 36) in body.

10). Lubricate and install spring (Item 33) and spool (Item 32) in

body.

11). Obtain new O-rings from seal kit. Install large O-ring (Item 35)

and then smaller O-ring (Item 34) on ported guide (Item 36).

12). Install ported guide in body. Torque guide to 260 in-lbs.

d. Repeat Step c for each of the remaining three (3) ports, one port at

a time.

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