Toro 07390 Workman HDX-Auto, Руководство по обслуживанию, Страница: 75 / 280

Workman HDX Auto Page 4 − 31 Drive Train
3. Use secondary clutch press tool (see Special Tools
in this chapter) to compress the compression spring
enough to allow removal of the retaining ring (item 3) that
secures internal clutch components. Remove retaining
ring (item 3).
4. Carefully, release clutch press tool to allow the com-
pression spring to extend fully.
5. Remove outer dampened spider assembly (items 4,
5, 6 and 7), spider dampener (item 8), spider insert (item
9), compression spring (item 10) and moveable sheave
assembly (items 12, 13 and 14) from stationary sheave.
6. If bearing (item 17) replacement is necessary, re-
move clutch shaft (item 11) with bearing from stationary
sheave (item 16). Remove retaining ring and bearing
from clutch shaft. Discard removed bearing.
Inspection
NOTE: If secondary clutch wear or damage occurs,
clutch replacement may be necessary. Refer to your
parts catalog to identify individual secondary clutch
components that are available.
1. Clean all dust and debris from clutch components. If
necessary, use contact or brake cleaner to remove any
oil or other lubricants from clutch components. Make
sure that belt contact surfaces of sheaves are thorough-
ly cleaned.
2. Inspect the compression spring and replace if dam-
aged or fatigued.
3. Check the rollers attached to the spider and move-
able sheave for binding or wear. If binding or uneven
wear is found, replace faulty rollers.
4. Check the contact surface of the sheaves for wear
and/or fraying. If wear or damage is found, replace sec-
ondary clutch assembly.
Assembly (Fig. 35)
IMPORTANT: For proper clutch operation, DO NOT
lubricate clutch components during assembly.
IMPORTANT: When assembling the secondary
clutch, check the marker lines made during clutch
disassembly to make sure the cam assembly, move-
able sheave and stationary sheave are properly
aligned (Fig. 36).
1. If bearing (item 17) was removed from clutch shaft,
install new bearing onto clutch shaft and secure with re-
taining ring. Install clutch shaft (item 11) with bearing into
stationary sheave (item 16).
1. Moveable sheave alignment mark
2. Spider alignment mark
Figure 37
1
2
2. Install moveable sheave assembly (items 12, 13 and
14), compression spring (item 10), spider insert (item 9),
spider dampener (item 8) and outer dampened spider
assembly (items 4, 5, 6 and 7) to clutch shaft and station-
ary sheave.
3. Use secondary clutch press tool (see Special Tools
in this chapter) to compress the compression spring
enough to allow installation of the retaining ring (item 3)
that secures internal clutch components. While com-
pressing spring, align the “X” mark cast on spider and “X”
mark cast on moveable sheave during the last
½
” of
spring compression.
4. Secure the clutch assembly with retaining ring (item
3). Make sure that retaining ring is fully seated in groove
before releasing the clutch press tool.
5. Align cam assembly with rollers on outer dampened
spider and slide the cam down over the rollers. If the cam
assembly is difficult to install, align clutch sheaves by
rocking the moveable sheave while inserting the cam.
6. Apply medium strength thread locker to threads of
torx screws (item 1). Secure cam assembly to moveable
sheave with four (4) torx screws. Torque screws from 8
to 12 ft−lb (11 to 16 N−m).
Safety
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rain