Skytrak 6042 Service Manual User Manual download pdf (Page 102)

100

101

Boom

3.56

Model 6042 Legacy Origin 7/02

4. Recheck chain tension. (Refer to Section 3.4.3,

“Boom Chain Tension Check.”)

5. Further chain adjustment can be achieved by

loosening all three chain locknuts

(Fig. 3-120, 1 and Fig. 3-121, 1) and moving the

rear retract chain clevis (Fig. 3-122, 1) from the

original mounting hole (2) in the anchor plate to the

next hole (3).

Figure 3-120 Extend Chain Adjustment Locknuts

Figure 3-121 Retract Chain Locknut

This is only acceptable when boom chain sag

(Fig. 3-123, 3) cannot be acquired and the chain

elongation measurement is still less than

12-3/8" (313 mm). Make sure to use a new 3/8-16

elastic locknut (4) to re-secure the chain clevis to the

anchor plate. Follow the instructions in

Section 3.4.4, a. “Component/Assembly

Verification.”

6. Recheck chain tension. (Refer to Section 3.4.3,

“Boom Chain Tension Check.”)

Figure 3-122 Move the Rear Retract Chain Clevis

Figure 3-123 Extend Chain Sag

7. Assemble the rear cover to the rear of the outer boom.

On the rear of the outer boom (Fig. 3-124, 1), position

the rear cover (2) in place. Secure the cover in place

with the 5/16" flat washer (3), saved, 5/16" Internal

tooth lockwasher (4), saved, and thumbscrew (5),

saved. Insert the thumbscrew through the bottom of

the outer boom and into the rear cover. Tighten the

thumbscrew securely to hold the cover in place.

MH1751

OA0512

MA9450

OA0492

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Skytrak 6042 Service Manual User Manual Page 102

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