JLG Skytrak 6036 Service Manual page 24

Section 3. Boom
HOSES
GRILLE TILT
CYLINDER
6. Disconnect and cap or plug the grille tilt
cylinder tubing, extend cylinder tubes and
bulkhead fittings in support plate, Fig. 3.8,
below the rear opening of the boom.
7. Loosen clamps that hold the tubing to the
bottom of the outer boom and remove the
tubing from the outer boom.
8. Attach slings and a suitable hoist to the
approximate center of gravity of the outer boom
and remove all slack from hoist cable.
NOTE: The approximate center of gravity of the
outer boom will be closer to the rear of the outer
boom.
9. Refer to Fig. 3.7 and remove the locknut and
capscrew that secures the hoist cylinder rod
end pin. Remove the pin. Check the condition
of the bearing in the cylinder rod end; replace
bearing if worn or damaged.
10. Refer to Fig. 3.7 and remove the capscrews
and lock washers securing boom pivot pins to
the outer boom.
11. Remove both boom pivot pins and washer
spacers from the outer boom and main frame.
12. Using the hoist, remove the outer boom from
the main frame of the forklift.
13. Check the condition of both boom pivot main
frame bearings; replace if worn or damaged.
3-6
INNER BOOM
HOSE GUIDE
CLAMP
CONNECTION
Fig. 3.8 Grille Tilt Cylinder Hoses
INTERMEDIATE BOOM
TUBING
SUPPORT PLATE
14. If the front outer boom wear pads, Fig. 3.9, are
excessively worn, temporarily replace them
with new pads. Use the same amount of
shimming as used when the pads were re-
moved.
IMPORTANT: The ends of wear pad attaching
capscrews must not protrude beyond the wear pad
insert; the ends must range from flush to 0.19" (5
mm) recessed in the wear pad insert (refer to Fig.
3.3).
b. Inspection and Replacement
1. Inspect the boom and welds and contact JLGl
if structural damage is detected.
2. Inspect hoses and replace if damaged.
3. Inspect and replace wear pads as described in
paragraph 3.1.8.
c. Installation
1. Using slings and a suitable hoist, align the
outer boom pivot collars with the main frame
bearings.
2. Install the boom pivot pins and washer spac-
ers, placing the spacers on the inside of the
frame bearing, Fig. 3.10. Using No. 10 and/or
14 gauge shims, shim to maintain a gap
between the frame bearing and outer boom of
0.07 to 0.13" (1,8 to 3,3 mm).
Model 6036 S/N 9B0499 and Before
OUTER BOOM
TO MAIN
CONTROL
VALVE
MA0081