SkyTrak 6036 Service Manual - Manual (Page 79)

3-37 6036, 6042, 8042, 10042, 10054
Boom
d. Component/Assembly Verification
The fourth to third boom section separation should be
checked when assembling new boom sections or chains,
or when the rear retract chain clevis has been moved
forward on the anchor plate.
Measure the separation between the third (4) and
fourth (5) boom section top plates. The distance (6)
should be at least 13.75 in (349 mm) and not greater than
14.25 in (362 mm) with the boom fully retracted and the
chains properly tensioned. A distance of less than
13.75 in (349 mm) could result in interference and cause
damage to boom components.
If the distance is less than 13.75 in (349 mm) or greater
than 14.25 in (362 mm):
1. Verify that the retract chain clevis is not mounted in
the last hole in the anchor plate.
2. Make sure that the chain system is properly
tensioned. Refer to Section 3.7.5, “Boom Chain
Tension Check”
3. To increase the separation distance: Loosen the
retract chain locknut on the bottom of the second
boom section one or two turns and tighten the
extend chain locknut the same number of turns. A
minimum of one full thread on the clevis must
protrude beyond the collar of the locknut.
4. To decrease the separation distance: Loosen the
extend chain locknut at the rear of boom one or two
turns and tighten the retract chain locknut on the
bottom of the second boom section the same
number of turns. A minimum of one full thread on the
clevis must protrude beyond the collar of the locknut.
Note: If the fourth to third boom section separation
distance cannot be achieved, contact your local
authorized service distributor.
3.7.8 Extend Chains Removal and
Replacement
(6036, 6042, 8042 & 10042)
1. Park the machine on level ground. Place the
transmission control lever in (N) NEUTRAL, engage
the parking brake switch, level the boom 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. Properly disconnect the battery.
4. Remove the boom rear cover.
5. At the rear of the boom, locate the extend chain
locknuts (7). Record the amount of threads
extending beyond both the locknuts. These
measurements will be the starting point for
adjustment of the extend chains after installation.
6. Remove and replace the extend chains one at a
time. Remove the right side locknut and flat washer,
holding the clevis to the anchor plate.
7. At the front of the boom, remove the capscrew (8)
and locknut holding the right side extend chain clevis
to the yoke plates. Replace the capscrew if damaged
or worn.
OH2871
4
5
6
MH1752
7
SH1811
8