Service manual

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6.2 FLUIDS/
G
REASES
The fluids used in Hydro-gear transaxles have been
carefully selected. If substitutions are made, use
equivalent products.
Typically, an engine oil with a minimum rating of 55 sus
at 210
o
F (99
o
C) and an API classification of SH/CD is
recommended. A 20W-50 engine oil has been selected
for use by the factory.
The grease used in the manufacture of Hydro-Gear
products is a STEMS Premium grease and should be
substituted with equivalent products only if it is not
readily available in your area.
NOTE:
This grease is not compatible with all grease
types.
6.3 HYDRO TRANSMISSION REMOVAL
1. Place the unit on a flat surface and remove the
negative lead from the battery and the spark plug
lead from the spark plug.
2. Raise the mower pan lift arm and remove the four
nuts holding the plastic insert onto the left side of
the rear deck and remove the plastic insert.
3. Raise the seat and remove the wire harness from
the seat switch, and remove the four carriage bolts
holding the rear deck to the unit frame and remove
the fuel cap from the fuel tank.
4. Lower the seat and rotate the seat deck forward
and over the mower deck lift arm and off the unit
frame.
5. Replace the fuel cap on the fuel tank and remove
the fuel tank from the unit by releasing the fuel line
from the fuel pickup tube in the tank.
6. Raise and block the unit frame on jack stands
forward of the transaxle in the frame.
7. Remove the unit tail board by removing the upper
two carriage bolts and the lower self tapping
screws.
8. Move the tail board to the rear and up to release
the transaxle dump valve link and transaxle oil
expansion hose.
9. Remove the rear wheels by removing the hub cap,
snap ring, hub cap ring, rear wheel, axle key, two
flat washers and spacers.
10.Set the parking brake and remove the main drive
belt from the input sheave on top of the transaxle.
11.Release the parking brake.
12.Remove the lock nut on the end of the brake rod,
along with the flat washers and spring.
13.Remove the cotter pin and washer on the shift rod
and remove the shift rod from the transaxle cam
arm.
Do not remove or loosen the hardware on
the transaxle sub-frame at this point.
14.Release the upper and lower tension springs on
the left rear of the transaxle sub-frame.
15.Support the transaxle with a floor jack from the rear
of the unit.
16.Remove the two right front anchor bolts holding the
transaxle subframe to the unit frame and remove
the left front bolts holding the transaxle subframe
to the unit frame.
17.Remove the two rear bolts on both sides of the unit
frame holding the transaxle subframe to the unit
frame.
Figure 26
936-8