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Section 3 - OPERATING INSTRUCTIONSSection 3 - OPERATING INSTRUCTIONS
ROLL RELEASE: To roll the machine without the
engine running, pressure within the hydraulic pumps
must be released. There is a hydraulic pressure relief
valve on the upper side of each pump that is used to
release the pressure. Use a wrench to rotate both relief
valves counter clockwise two full turns to open. After
rolling machine, both relief valves must be rotated
clockwise to close valves and tighten securely before
operating machine. Machine will not move if relief
valves are open. See Figure 3.4.
NOTE: In order to raise operator seat to access
hydraulic pumps, seat must be in rearmost position.
3.2 STARTING & STOPPING - ENGINE, BLADES,
PARKING BRAKE
This machine is equipped with dual hydrostatic wheel drive
transmissions. Each hydro pump is controlled by a sepa-
rate motion control lever. The left lever controls the left
wheel drive hydro pump and the right lever controls the
right wheel drive hydro pump. These levers control the
direction of motion, Forward & Reverse, and the speed of
motion. Move both levers forward to propel the machine
forward. Move both levers rearward to propel the machine
in reverse. The speed of motion is continuously variable
from neutral (zero) to the maximum. Moving the levers far-
ther from the neutral position will cause the speed of
motion to increase. To turn, move the lever on the side to
which you want to turn slightly rearward of the other lever.
Move levers slowly and carefully. DO NOT make sudden
changes in speed or direction. Always slow machine
motion before turning. To stop the motion of the machine,
bring both motion control levers to the neutral position.
Engage parking brake.
3.2.1. STARTING ENGINE
When the ignition key is turned the engine will not start
or turn over unless the blade switch is pushed in to the
"OFF" position and the motion control levers are in the
neutral lock position. Always engage parking brake
before starting engine.
1. Complete pre-start checklist.
2. Sit in operator's seat.
3. Push blade switch in to "OFF", blades disengaged
position and engage parking brake. See Figure 3.2.
4. Move choke control forward to choke position to
start a cold engine. See Figure 3.5.
5. Move engine speed control to the Rabbit "FAST"
position. See Figure 3.5.
6. Turn key to the start position until engine starts.
See Figure 3.6.
FIGURE 3.4
WARNING
DO NOT disengage the hydro transmission and
coast down slopes. DO NOT use Roll Release
Control to disengage the hydro transmission
unless machine motion can be controlled and
engine is off.
!
!
ROTATE RELIEF VALVE
COUNTERCLOCKWISE TO
RELIEVE PRESSURE
FIGURE 3.5
SHOWN FROM OPERATOR'S VIEW POINT
RELIEF VALVE
CHOKE
CONTROL
ENGINE SPEED
CONTROL
KEY SWITCH
MOTION CONTROL LEVERS
SHOWN IN THE NEUTRAL
LOCK POSITION