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Figure 5-5. Installing Retainer Plates on Load Brake Shaft
10024
Figure 5-6. All Gearing Removed except Drum Gear
10026
f. To remove drum gear, remove spirolox retaining ring from
end of drum shaft and pull drum gear from splined shaft
(Figure 5-6). This should be done after complete load
brake shaft assembly has been removed.
g. Replace motor pinion shaft.
h. Reinstall spider and motor brake plates on gearcase. Make
certain motor pinion shaft bearing on a size 2 hoist and
load brake shaft bearing (Figure 5-7) are installed with
the external retainer firmly seated against the inside (hoist
side) of the spider and retainer side of bearing toward
hoist. On a size 3 hoist the motor pinion shaft bearing is
caged to the spider.
j. Replace gearcase gasket and cover and refill gearcase
to bottom of oil level plug.
k. Reconnect motor brake leads.
Figure 5-7. Installing Load Brake Shaft Ball Bearing in
Gearcase Spider (Size 2 Hoist Shown)
11990
I. Before replacing brake cover, fine adjustment can be made
to overload clutch if your hoist is so equipped. See
OVERLOAD CLUTCH ADJUSTMENT - Paragraph 7-5. If
clutch adjustment is not required replace brake cover.
5-7. INSPECT ROPE DRUM AND SHAFT.
a. To remove rope drum, remove hoisting cable, gearcase
cover, and remove load brake and gearing as outlined in
Paragraph 5-6.
b. Remove hinged side cover, hinge plate and cover bridge
from hoist frame.
c. Take out four bolts holding gearcase to frame and remove
gearcase. Drum and shaft will remain in frame.
d. Remove four bolts holding drum shaft bearing retainer to
inside of gearcase and pull ball bearing and oil seal from
bore in gearcase.
e. Pull drum and shaft from frame.
f. Check parts for wear and damage. Replace drum or shaft
if there are any signs of cracks or other damage. Replace
oil seal if the sealing edge appears worn or cracked.
g. Reinstall parts following a procedure in reverse of
disassembly. Refill gearcase to proper level with correct
grade of oil. (See SECTION IV - LUBRICATION.)
5-8. ROPE INSPECTION, MAINTENANCE AND
REPLACEMENT.
Wire rope improperly handled or abused can create a
SAFETY HAZARD. Read and comply with Inspection,
maintenance and replacement information given
herein.
WARNING
Summary of Contents for SHAW-BOX
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