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6.6 HYDRO TRANSMISSION
INSTALLATION
Before installing the transaxle assembly into the unit
frame with the axle subassembly installed the following
items will need to be completed.
Make sure the brake rod has two flat washers and a
heavy coil spring installed on it before inserting the
transaxle into the unit frame.
1. Guide the shift rod into the shift arm and the brake
rod into the brake arm as the transaxle is inserted
into the frame from the rear of the unit.
2. Start the two rear 3/8" self tapping bolts into the
rear of the transaxle sub frame to support the axle
assembly while installing the rest of the hardware.
Do not tighten any hardware until all the support
hardware is installed.
3. When all the hardware is in place, tighten to an
appropriate torque.
4. Reinstall the tension spring to the shift linkage on
the top and bottom of the right axle.
5. Install the two flat washers, compression spring,
and lock nut on the rear of the brake rod which
operates the brake arm.
6. Install the flat washer and cotter pin on the shift
rod.
7. Set the parking brake and install the main drive belt
on the transaxle input sheave and check the belt
routing on the idler arm and engine pulley, release
the parking brake.
8. Check the belt fingers and belt alignment.
9. Reinstall the rear tail board on the unit installing the
dump valve rod and transaxle oil expansion hose.
Reuse the hardware removed earlier, two carriage
bolts and two self tapping cap screws.
10.Reinstall the fuel tank and attach the fuel line,
route the seat switch wires over the fuel tank.
11.With the mower deck lift arm in the up position
reinstall the rear deck onto the unit frame and over
the fuel tank.
12.Route the seat switch wires through the rear deck
and attach to the seat switch.
13.Install the fuel cap onto the fuel tank, attach the
rear deck to the unit frame.
14.Before installing the left rear wheel install the two
flat washers and spacers, install the rear wheel
with key in the key way.
15.Replace the hub cap retainer and snap ring and
place the hub cap over hub cap retainer.
16.Leave the right wheel off the transaxle for neutral
adjustment.
Transaxle Neutral Adjustment
Make sure that the rear of the unit is suspended before
the unit is started, set the parking brake and start the
engine.
Make sure that the interlock system is operational
before proceeding.
1. Place a weight onto the seat to activate the seat
switch, and release the parking brake.
2. Turn in the cap screw on the bottom of the
transaxle subframe that will pivot the top of the shift
arm to the rear.
3. The axle should drive to the rear.
4. Turn the cap screw out on the axle subframe which
will allow the shift arm to pivot forward and the axle
should rotate forward.
5. Center the cap screw between these two points
and the transaxle should be in hydraulic neutral.
6. Reinstall the right rear wheel identical to the left
rear wheel.
Figure 41
OT0840
1. Disc Brake
2. Castellated Nut w/Cotter Pin
3. Compression Spring- .78" OD x 1 " long
4. Feeler Gage
5. Washer
6. Nylon Lock Nut
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