Thermo King KD-II SR, Manual

Page: 143 / 182

Hilliard Clutch Maintenance (Starting 4-97) (Rev. 04/03)
129
CLUTCH MAINTENANCE
Using an inspection mirror, inspect the clutch with a mirror
every 1000 hours of operation or yearly, whichever occurs
first. If clutch removal is necessary, clean the shoes and
drum, regrease bearings or replace if they are worn. Inspect
anchor bushings, shoe lining and springs for wear and
replace if necessary.
Tools Required
• Internal Retaining Ring Pliers
• 7/16 in. Wrench
• 7/32 in. Allen Wrench or 7/32 x 1/2 in. Socket Drive
• 1/2 in. Impact Tool
• Rubber or Plastic Hammer
• 7/16 in. Socket or Nut Driver
• Arbor Press with Various Sized Arbors
• Bearing Puller
• Ratchet (Optional)
• Torque Wrench
Grease
Mobil #28 (Synthetic) TK P/N 203-394
Disassembly Procedure
1. Remove retaining ring.
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 (propane or acetylene
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
the housing shaft. The inner race of the roller bearing
will remain on the housing shaft.
Housing Removal
4. Remove the nuts from six 1/4-28 link screws and
remove screws, links, and lockwashers.
5. Remove the springs and shoes.
6. Pull oil seal and press bearings out of hub.
NOTE: Press tool should be slightly smaller than hub
bore.
Bearing Removal
NOTE: Make sure the center of the hub is supported
and not the outer rim of the hub, when pressing bear-
ing out.