Clutch Repair - Toro 51603 Maintenance And Repair Manual

i
DISASSEMBLY, REPAIR,
REASSEMBLY INSTRUCTIONS
CLUTCH REPAIR
The clutch consists of two assemblies: (Fig. 24):
A. The upper housing containing the upper power
shaft, ball bearing, oil shield, clutch spacer,
clutch assembly and
B. The lower bearing housing and clutch drum
which is threaded to the lower housing shaft.
NOTE: The oil shield was not used in early
production of the TC-400 clutch assembly. Also,
the upper power shaft with the snap ring was
changed to a machined shaft with a shoulder.
The two shafts are interchangeable. The oil
shield may be added to existing clutch assem-
blies using the upper shaft with the machined
ring.
Disassembly
&
Assembly instructions
1 . Remove the cutter head or line feed assembly.
2. Remove the clutch housing from the trimmer
tube by loosening the housing clamp bolt.
3. Remove the six screws securing the upper and
lower sections of the clutch housing. Separate
the two sections by gently prying them apart.
4. The clutch assembly (shoes and springs) can be
1390 (Fig 25). Align the pins on the tool with the
holes in the clutch assembly. While supporting
the opposite end of the power shaft with a piece
removed with the multipurpose tool P/N #45-
of 3/16 inch square key stock, turn the clutch
assembly counterclockwise. The spacer, oil shield
and power shaft can now be removed.
Clutch Wrench
Figure 25
Multipurpose tool (P/N 45-1 390)
NOTE; When reassembling the clutch shoe and
spring assembly, be sure that the side marked
"off" i s toward you. The wide flange on the
spacer must be against the clutch shoe and
spring assembly.
5. Remove the three screws in the bearing retainer.
The bearing fits loosely and can be pushed out by
gently tapping the bearing from the top or clamp
end
of
the housing.
6. The shaft and bearings in the lower clutch hous-
ing are not serviceable as individual components
and must be replaced as an assembly.
17