4
Section 11. Mid-Engine Riding Mowers with HydroGear 311 - 0500 ................................................................33
SIMPLICITY AGCO ALLIS MASSEY FERGUSON
Coronet Series 400 Series 2400 Series
1692750 - 13 HP
1692515 - 12.5 HP
1692821 - 13 HP
1692519 - 12.5 HP
1692491 - 12.5 HP
1692385 - 12.5 HP
1692130 - 12.5 HP
1692399 - 12.5 HP
1692176 - 12.5 HP
Table of Contents (Continued)
Transmission Purging
This procedure applies to the
following models:
Simplicity - Regent & Coronet Series
AGCO Allis - 500 & 400 Series
Massey Ferguson - 2500 & 2400 Series
The following is a purging procedure for
products that use the Hydro-Gear transmis-
sion. Use this procedure if air has become
trapped in the transmission during shipment,
storage, or during an oil change. Purge the
transmission if it lacks drive in forward or
reverse.
1. Park the tractor on a flat, level surface.
2. Place the hydro release lever in the PUSH
position by pulling rearward on the lever . The
lever is located under the rear right-hand corner
of the frame.
3. Start the tractor engine and run at low idle.
4. Move the ground speed control lever to the
neutral gate.
5. Return the control lever to the neutral gate.
6. Place the hydro release lever (A) in the DRIVE
position by pushing the lever fully forward.
7. Drive the tractor for at least five feet in forward
and reverse directions with full throttle and full
ground speed. Repeat this procedure three times
in the forward and reverse directions.
Repeat the above steps if the tractor has noisy or
erratic operation, lack of performance after
transmission warm up, or oil leakage from
transaxle vent tube.
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