UNITIZED TRANSAXLE
General Information
Page 16-2 2001 Pioneer 900 Gasoline Vehicle Maintenance and Service Manual
16
Shifter Lever
A shifter lever, connected to a shifter arm on the unitized transaxle, is used to change the gears to one of
three shift positions: FORWARD (F), NEUTRAL (N), or REVERSE (R) (Figure 16-1, Page 16-2). The vehicle
should come to a complete stop before changing FORWARD or REVERSE direction.
Lockout Cam
The Pioneer 900 vehicle has a lockout circuit that prevents a driver from starting the vehicle when it is in
gear. The engine can be started only when the Forward/Reverse handle is in the NEUTRAL position. See
Lockout Cam Circuit, Section 11, Page 11-11.
Governor System
The governor system is a flyweight type, and regulates vehicle ground speed. It is mounted inside the unit-
ized transaxle and is driven by transaxle gears. Because the governor is mounted inside the transaxle, it is
protected from abuse and damage common to externally mounted governor systems. If any of the governor
linkages are removed in order to service other components, readjustment of the governor linkage is required.
See Governor Cable Installation and Adjustment, Section 14, Page 14-11.
Unitized Transaxle Service
The unitized transaxle is extremely durable and should require very little service under normal operating con-
ditions. The only maintenance required on the unitized transaxle is to maintain proper lubricant level. See
Periodic Lubrication Schedule, Section 10, Page 10-4. Under normal operating conditions, adjustment to
the system should not be required.
Tools Required For This Section
Figure 16-1 Shifter Positions
Figure 16-2 Lubricant Level
Hydraulic floor jack (or chain hoist)
12 to 18 in. straight edge
17 mm socket, 3/8 in. drive
Jack stands (2) (one ton capacity)
Small ball peen hammer (10 oz.)
7/16 combination wrench
Hydraulic press
Plastic or rubber mallet
1/2 combination wrench
Bench vise
Ratchet wrench, 3/8 drive
9/16 combination wrench
TOP VIEW
SHIFTER
LEVER
SHIFTER
SHAFT
F N R
DRAIN
PLUG
C l u b C a r
Lubricant
should be level
with bottom of
level indicator hole.
