Skytrak 6042 Service Manual User Manual download pdf (Page 101)

100

101

3.55

Model 6042 Legacy Origin 7/02

Boom

3.4.4 Boom Chain Tension Adjustment

Note: Always perform Section 3.4.3, Boom Chain Ten-

sion Check before adjusting the boom chain tension.

Figure 3-116 Boom Extend Chains and Yoke Plates

1. Adjust the two boom extend chains (Fig. 3-116, 1).

If the chain sag measurement (Fig. 3-117, 3) is less

than 1-1/2" (38 mm), tighten the two extend chain

adjustment locknuts (Fig. 3-118, 1).

If the chain sag measurement (Fig. 3-117, 3) is more

than 2-1/2" (64 mm), loosen the two extend chain

adjustment locknuts (Fig. 3-118, 1).

Figure 3-117 Extend Chain Sag

2. Tighten or loosen the two extend chain adjustment

locknuts (Fig. 3-118, 1) located at the rear of the

boom. Be sure each of the locknuts are adjusted

equally so that each extend chain maintains the

same tension.

Equal chain tension can be checked by the position

of the yoke (Fig. 3-116, 2) on the outer boom. The

front of the yoke (2) should be parallel with the front

edge of the outer boom.

Figure 3-118 Extend Chain Adjustment Locknuts

3. If there is no adjustment left on the extend chains,

tighten the retract chain locknut (Fig. 3-119, 1) at the

front on the underside of the outer boom.

Figure 3-119 Retract Chain Locknut

OH0240

OA0492

MH1751

OA0512

1 2 ... 96 97 98 99 100 101 102 103 104 105 106 ... 543 544

Comments to this Manuals

No comments

Skytrak 6042 Service Manual User Manual Page 101

Comments to this Manuals

Related products and manuals for Special machinery Skytrak 6042 Service Manual