Service Manual

Pivot System Disassembly (cont’d)
5. Remove the left hand pivot arm complete with the
chain guard.
6. Remove the latch rod, pivot arm, and rear axle
assembly by slipping the chain
off the large
sprocket.
7. Remove chain guard from the left hand pivot arm.
8. Remove the latch rod from the right hand pivot
arm.
9. If necessary, remove the bushings from the pivot
arms using an arbor press.
10.
If desired, remove the pivot bolts. They may flare
somewhat once installed and may have to be
pressed out with an arbor press.
11.
If necessary, remove the roll pins from the axle.
Pivot System Reassembly
See Figure 69.
Figure 69
1. Press new bushings into both pivot arms.
2. Install the chain guard on the left hand pivot arm.
3. Press roll pins into the two inner holes on the axle
and slide thrust washers on each end
so that they
rest against the roll pins.
6. Insert the latch rod, pivot arm, and axle assembly
into the proper location on the right side of the
chassis. Be sure to slip the chain over the
sprocket.
NOTE: There must be a Belleville washer between
the frame and the pivot arm. The serrated side of
the Belleville washer should face
the pivot arm.
7. Slide the left pivot arm and chain guard assembly
over the axle and into position.
NOTE: Make sure all washers are in place. There
should be a Belleville washer (serrated side
toward the pivot arm) between the pivot arm
and
the chassis, a large flat washer (between the end
of the latch rod and the pivot arm), and a thrust
washer between the roll pin and the pivot arm
when
it is installed correctly. See Figure 70.
Figure 70
8. Secure the assembly by tightening the pivot arm
bolts and nuts, and the nuts on the latch rod.
9. Mate the right half of the chain guard with the left
half and secure with the three Phillips screws.
10. Coat the end of the axle with an anti-seize
compound Toro part number 505-109).
Do not
apply in the bushing area as
it may become
“gummy”.
11. Slide the thrust washers over the end of the
axle
and install the wheel assemblies. Note that the
part of the hub with the hole in
it faces outward.
Rotate wheel to distribute anti-seize compound,
4. Install the latch rod into the right hand pivot arm, Secure the wheels with the klik pin. Use the outer
making sure that there is a large flat washer on hole
if free wheeling is desired, or use the inner
each side of the pivot arm. Don’t tighten the nylon hole
if drive is desired.
locknut at this time.
5. Insert the axle into the right pivot arm and latch LATCH SYSTEM
rod assembly. The sprocket will be on the left side
of the axle when
it is installed correctly. Latch System Disassembly
NOTE: Make sure there is
a thrust washer 1. Remove the panel fastener from the latch plate
between the roll
pin and the pivot arm. and slip out the end of the latch cable.
Power
Shift Snowthrowers 61 Pivot and Latch System