SkyTrak 6036 Service Manual - Manual (Page 83)

Section 6 Drive Shafts and Drop Box
Model 6036/6036T S/N 9B0500 thru 14833 6-5
6.3 DROP GEAR BOX FOR
S/N 9N0942 AND AFTER
6.3.1 End Yokes
a. Inspection
Replace end yokes (23 and 24, Fig. 6.3) if worn or
damaged.
b. Removal
To remove an end yoke, remove nut (12), washer
(14), and end yoke (23 or 24, Fig. 6.3).
c. Installation
To install an end yoke, press yoke (23 or 24, Fig.
6.3) on shaft and secure with washer (14) and nut
(12).
6.3.2 Oil Seals
a. Inspection
Replace oil seal (21, Fig. 6.3, if worn or damaged.
b. Removal
To remove oil seal, remove nut (12, Fig. 6.3),
washer (14), end yoke (24) and oil seal (21).
c. Installation
1. To install oil seal, press oil seal (21) and end
yoke (24) on shaft.
2. Secure with washer (14) and nut (12).
6.3.3 Removal of Drop Gear Box
1. Remove the transmission and hydraulic tank
covers from the frame.
2. Remove the U-bolt assembly or bearing straps
attaching the transmission drop box drive shaft
cross assembly to the drop box input shaft
yoke, Fig. 6.1.
3. Remove the U-bolt assemblies attaching the
axle drive shaft cross assemblies to the drop
box output shaft yokes, Fig. 6.1. Slide slip
joint back as far as possible on drive shaft.
Tape bearing caps to cross to prevent loss of
bearings.
4. Secure drop gear box in a sling, connect sling
to a hoist and remove slack from hoist line.
5. Drain hydraulic tank. Detach hose that runs in
between tank and drop box. Remove bolt and
washer attaching input yoke to drop box.
6. From under the forklift, remove two capscrews
and lock washers securing the drop box to the
frame, Fig. 6.2.
7. From above, remove the remaining two
capscrews and lock washers attaching the
drop box to the frame.
8. Use hoist to lift drop box from forklift.
9. Clean the exterior of the drop box and move it
to a clean work area.
6.3.4 Disassembly of Drop Gear Box
for S/N 9N0942 and After Only
1. Prepare to drain oil from the drop box by
positioning box with drain plug 22 at the
bottom of the box.
2. Place a container suitable for collecting the oil
under the drop box and remove the level plug
(17), copper washer (26) and drain plug (22).
3. To remove each of the three end yokes (23 or
24, Fig. 6.3) remove nut (12) and washer (14).
4. Pull the three yokes from the shafts.
5. Remove capscrew (10), open cover (4), shims
(20), bearing cup (8), and seal (21) from upper
and lower shafts. Keep bearing cones and
cups together as matched sets.
6. Remove plug (18), capscrew (10), closed
cover (3), shims (20), bearing cup (8), and
bearing cone (9) from center shaft.
7. Prepare to separate the housings (1 and 2) by
removing nuts (11), capscrews (15) and lock
washers (13).
8. Carefully separate the housings.
9. Remove gears (5, 6, and 7), bearing cone (9),
and bearing cup (8).
10. If necessary, remove dowels (16).
6.3.5 Cleaning and Drying of Drop
Gear Box for
S/N 9N0942 and After Only
Clean drop box using an approved solvent and dry
with a clean, lint-free cloth.
6.3.6 Inspection and Replacement of
Drop Gear Box for
S/N 9N0942 and After Only
1. Inspect and lubricate bearings.
2. Repair components as required.
3. Replace gears as a set if one or more gears is
significantly worn or damaged.