Troy-Bilt 665B - Manual (Page 21)

5. Slide the belt off the engine pulley (C,
Figure 5-18), away from engine, out from
under the belt guide (D), and completely
off the pulley.
6. Slip the belt off the front of the trans-
mission pulley (F, Figure 5-19).
7. Work the belt out from between the
pulley and the frame, around the transmis-
sion cover spring, then up and out of the
machine.
Installing Forward Clutch Belt
1. Stop engine, allow it to cool and dis-
connect spark plug wire before working
near belts. Also remove ignition key on
electric start models.
2. Remove the old forward clutch belt as
described in Removing Forward Clutch
Belt.
3. From the front of tiller, insert the
forward clutch belt in between the bottom
of the engine drive pulley (I) and the top of
transmission pulley (K, Figure 5-20).
4. Insert the bottom half of belt into the
smaller, rear-most groove of the transmis-
sion pulley (F, Figure 5-19). Now slip the
top half of belt under the belt guide (D,
Figure 5-18) and onto the large groove of
engine drive pulley (L, Figure 5-19).
5. Reconnect the forward clutch cable to
the correct hole in the idler arm bracket,
as shown in Figure 5-17.
NOTE: Be sure to run the reverse clutch
cable on the pulley side of the cover
support brackets (G, Figure 5-21).
IMPORTANT: Belt must be installed on the
inside of the belt guide (H, Figure 5-21).
6. Reinstall the reverse clutch belt. Insert
the bottom of the belt into the frame, then
pull down on the belt and roll it onto the
large, forward-most groove of the trans-
mission pulley (P, Figure 5-20).
7. Reinstall the belt cover.
8. Test for correct tension on the forward
clutch belt (see Checking Forward Belt
Tension).
REVERSE CLUTCH BELT REMOVAL
AND INSTALLATION
The reverse clutch belt (J, Figure 5-22) is
driven by the engine drive pulley (I, Figure
5-20). When the Reverse Clutch Control
knob is pulled out, it pulls the reverse idler
arm and pulley (N) which tightens the belt
against the engine drive pulley. This
drives the transmission drive pulley (L),
resulting in reverse motion.
Removing Reverse Clutch Belt
1. Stop engine, allow it to cool and dis-
connect spark plug wire before working
near belts. Also remove ignition key on
electric start models.
2. Remove belt cover (Figure 5-13) by
removing two flange locknuts.
Figure 5-20: Arrow (K) shows insertion point
for installing new forward clutch belt.
Section 5: Maintenance 21
Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to
a complete stop, remove ignition key on electric start models, disconnect spark plug wire and move wire
away from spark plug.
Failure to follow these instructions can result in serious personal injury or property damage.
WARNING
Figure 5-18: Right-side view.
Figure 5-17
Figure 5-19: Left-side view.
Figure 5-21: Correct forward clutch cable
positioning.
Forward Clutch
Idler Arm
Forward Clutch
Cable
Connection
D
E
C
F
L
G
H
I
O
P K