Hilliard Clutch Maintenance (Rev. 04/03)
90
CLUTCH MAINTENANCE
Inspect the clutch every 1000 hours of operation or yearly,
whichever occurs first. Remove the clutch, clean the shoes
and drum, regrease bearings or replace if they are worn.
Inspect shoe anchor bushings, shoe lining and springs for
wear and replace if necessary.
Tools Required
1.
Snap Ring Pliers
2.
Torque Wrench
3.
7/32 in. Allen Wrench
4.
1/2 in. Impact Tool
5.
Rubber or Plastic Hammer
6.
7/16 in. Socket or Nut Driver
7.
Arbor Press with Various Sized Arbors
8.
Ratchet (Optional)
Grease
Mobil #28 (Synthetic) TK P/N 203-394
Clutch Disassembly
1.
Remove retaining ring from hub bore.
2.
Remove the 3/8-16 flat head cap screw and washer.
NOTE: This screw was installed using Loctite #680
and will require the use of an impact tool for removal.
NOTE: A small amount of heat (Acetylene or propane
torch with small heating tip) applied to the cap screw
head may be required to help loosen the screw.
3.
Remove housing from hub by supporting hub (in a min-
imum of three places) in spoke area, and pressing on
housing shaft.
Housing Removal
4.
Remove the nuts from six 1/4-28 link screws.
5.
Remove the springs and bushings from the shoes.
6.
Press the bearings out of the hub.
NOTE: Bearing and spacer should press out together.
Bearing Removal
Clutch Assembly
1.
Pack both bearings with Mobil 28 grease.
2.
Press bearing into hub bore.
NOTE: Be sure seal side is down.
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