Service Manual
CHASSIS
3-83LX Lawn Tractor Service Manual
3
Fig 321 fi g. 4 310-0510 IHTa
Before starting, make sure the transaxle is at the speci-
fi ed oil level (Fig. 321).
A. Fill port C. 1-1/4” (31.75mm) max.
B. Oil level depth at 50º-100º F
(10º-38º C)
A
BC
The following procedures should be performed with the
vehicle drive wheels off the ground, then repeated under
normal operating conditions.
1. With the bypass valve open and the engine running,
slowly move the directional control (foot control) in
both forward and reverse directions 5 to 6 times; as
air is purged from the unit, the oil level will drop.
2. With the bypass valve in the closed position and the
engine running, slowly move the directional control
valve (foot control) in both forward and reverse
directions 5 to 6 times. After stopping the engine,
check the oil level and add oil as required.
3. It may be necessary to repeat Steps 1 and 2 until all
the air is completely purged from the system. When
the transaxle moves forward and reverse at normal
speed purging is complete.
Reinstall transaxle and perform purging procedures.
If the oil drained from the transaxle is severely
contaminated or overheated, the transaxle should be
disassembled for inspection, cleaning, and repair, as
needed.
Fluid Description Volume
20W-50 engine oil 79 fl . oz. (2336ml)
Fluid Change - Hydrostatic Models
Fig 322 fi g. 4 310-0510 IHTa
The Hydro-Gear transaxle is factory fi lled, sealed and
does not require oil maintenance. However, in the event
of oil contamination or degradation, oil replacement
may correct certain performance problems. Remove the
transaxle from the vehicle and completely drain the oil
from the top fl uid fi ll port. Refi ll unit as near the top of fi ll
port as is practical. Tipping the unit forward, backward
and from side to side will allow air to escape. The tipping
and fi lling activity may need to be repeated several
times. Refer to the oil fi ll range (Fig. 322).
A. Fill port C. 1-1/4” (31.75mm) max.
B. Oil level depth at 50º-100º F
(10º-38º C)
A
BC