SkyTrak 6036 Service Manual - Manual (Page 88)

Boom
3.48 Model 6036 Legacy
Note: Before making any adjustments to the extend
chains, check the following measurement at the rear of
the boom.
5. Start the engine, retract the boom completely and
turn the engine OFF.
6. Remove the thumbscrew (Fig. 3-102, 1), one
internal-tooth lockwasher (2) and one flat washer (3)
holding the rear cover (4) to the rear of the outer
boom. Lift the rear cover straight up until the
capscrew in the top of the cover clears the hole in
the top of the outer boom. Remove the cover from
the outer boom.
Figure 3-102 Remove the Boom Rear Cover
7. At the rear of the boom, check the measurement
(Fig. 3-103, 1) from the top rear edge of the
intermediate boom (2) to the top rear edge of the
inner boom (3). This measurement should be in the
range of 8.0" (203 mm) to 8.5" (216 mm).
Note: If the intermediate boom to inner boom
measurement is less than 8.0" (203 mm), the boom may
require extensive adjustment and/or repair. Contact the JLG
Service Department or the nearest JLG Authorized Ser-
vice Center (ASC).
Figure 3-103 Measurement at the Rear of Boom
8. If the measurement is more than 8.5" (216 mm),
tighten the retract chain locknut (Fig. 3-104, 1) on
the bottom of the outer boom several turns.
Figure 3-104 Retract Chain Locknut
9. Start the vehicle, and cycle the boom in and out
several times. Then, with the boom horizontal,
retract the boom completely. Turn the engine OFF.
10. Recheck the measurement (Fig. 3-103, 1) from the
top rear edge of the intermediate boom (2) to the top
rear edge of the inner boom (3).
If the measurement is still more than 8.5" (216 mm),
tighten the retract chain locknut (Fig. 3-106, 1) on
the bottom of the outer boom several more turns.
11. Start the vehicle and cycle the boom in and out
several times. Then, with the boom horizontal,
retract the boom completely. Turn the engine OFF.
MA6420
3
2
1
4
OA1370
1
2
3
~
OA0512
1