13 front roller shimming, 14 front scraper plate replacement, Front roller shimming -15 – Lull 944E-42 Service Manual User Manual

Page 255: Front scraper plate replacement -15

Advertising
background image

11-15

944E-42

Transfer Carriage

11.3.13

Front Roller Shimming

Note: The attachment should remain attached to the
quick attach.

1. Park the machine on a firm, level surface, level the

machine, fully retract the boom and transfer
carriage, level the boom, place the transmission
control lever in (N) NEUTRAL, engage the park
brake and shut the engine OFF.

2. Lift the boom with a hoist to remove pressure off the

front rollers. There should be a gap between the
rollers and the rails.

3. Place a Do Not Operate Tag on both the ignition key

switch and the steering wheel, stating that the
machine should not be operated.

4. Open the engine cover. Allow the system fluids to

cool.

5. Properly disconnect the batteries.

6. Remove the front roller pin (5), front roller and

shims (6). Count and label their positions for later
replacement.

Note: New shims have a 0.06 inch (1,5 mm) thickness.

7. Add new shims to the left and/or right side shim

groups as required to achieve proper gap
maximums. Spread shims evenly between the left
and right shim groups.

8. Insert front roller pin (5), front roller and shims (6)

according to their new positions.

9. Replace capscrew, washer, spacer and locknut to

secure pin (5) on transfer carriage. Torque capscrew
to, 43 - 78 lb-ft (59 - 106 Nm).

10. Properly connect the batteries.

11. Close and secure the engine cover.Inspect rear

rollers. (Refer to Section 11.3.12, “Front Roller Gap
Check.”
)

12. If required, perform rear rollers shimming. (Refer to

Section 11.3.13, “Front Roller Shimming.”)

11.3.14

Front Scraper Plate Replacement

1. Park the machine on a firm, level surface, level the

machine, fully retract the boom and transfer
carriage, level the boom, place the transmission
control lever in (N) NEUTRAL, engage the park
brake and shut the engine OFF.

2. Place a Do Not Operate Tag on both the ignition key

switch and the steering wheel, stating that the
machine should not be operated.

3. Open the engine cover. Allow the system fluids to

cool.

4. Properly disconnect the batteries.

5. Remove the scraper plates (7) from the front of the

transfer carriage. Clean, inspect for damage, and
replace as necessary.

6. Coat the capscrews with Loctite

®

242 (blue). Replace

capscrews and washers and new scrapers (7) on the
front of the transfer carriage. Adjust scraper to have
a gap of less than 0.12 inches (3 mm) between it
and the frame rail. Torque capscrews to, 25 - 44 lb-ft
(34 - 61 Nm).

7. Properly connect the batteries.

8. Close and secure the engine cover.

MU1791

6

5

MU1841

7

Advertising