Description; Lubrication - Toro 20330 - Low Wheel Walk Power Mower Service Manual

SINGLE SPEED SPUR/BEVEL GEAR TRANSMISSION

Description

This basic transmission has been in use for several
years. There are minor variations, such as different
shafts on the bevel pinion gear to accommodate belt
alignment on different chassies. All use a bevel pinion
input gear which mates with a combination bevel/spur
gear, which drives a fi nal spur gear.

Lubrication

Proper lubrication for this transmission is 2.5 – 3 fl uid
ounces (7.1cc – 9.0cc) of lithium based No. 2 grease.
Transmission Removal and Replacement
1. Raise the rear of the mower and support with a block
(Fig. 027).
A. Wood block
WPM Drive Systems Manual
A
Fig 027 PICT-1870
2. Remove transmission belt cover.
3. Remove both rear wheels.
4. Remove retaining ring, spring, thrust washer, and
pinion from both axles (Fig. 028). Refer to "Wheel
Pinion Clutch" on page 5-3 for additional information
about the clutch mechanism.
5. Continue disassembly, remove rocking key, clutch
washer, klip ring, keyed thrust washer, pivot arm
thrust washer, and friction ring. The pivot arm and
spring arm will then slide off the axle (Fig. 029).
Fig 028 PICT-1873a
Fig 029 PICT-1874a
2-3