HUSTLER 3700 Operator's Manual page 25

conditions or slopes.
NOTE: The steering (rear) axle is not powered in reverse
when tractor is operating in Automatic AWD.
Power take-off operation
The power take-off (PTO) transfers engine power directly
to the PTO equipment.
PTO is controlled through the PTO lever. To engage the
PTO, push the lever forward. To disengage the PTO, pull the
lever rearward. Figure 3-11
WARNING: To avoid personal injury, keep chil-
dren and others away when operating PTO equip-
ment.
NOTE: The PTO lever must be placed in the disengaged
position to start the tractor.
Operating the differential lock
Do not engage the differential lock when ground speed is
above 8 kmh. Figure 3-7The differential lock is engaged by
depressing the differential lock pedal. Depressing the pedal
locks both differential gears together, preventing one wheel
from rotating independently of the other. The lock should be
used to obtain additional traction from the opposite wheel
whenever one wheel begins to slip in wet or loose soil.
NOTE: The differential lock pedal only locks the front
axle when applied. The rear axle is not lockable.
WARNING: Do not engage the differential lock
when turning the unit. If the lock is engage when
turning, a loss of steering control will result.
To operate the differential lock depress and hold down the
pedal until the lock is positively engaged. It is best to engage
the differential lock while the wheels are turning slowly to
minimize shock loads to the drive line. If a wheel spins at
high speed, as on ice, reduce engine speed to idle before
engaging the lock, or damage may occur. The differential
lock is released when the pedal releases as the loads equalizes
on both drive wheels.
NOTE: In some instances the lock may remain engaged
after the pedal is released. This may occur if one front wheel
tends to turn at a faster speed than the other. Should this hap-
pen, the lock may be disengaged by decreasing the drawbar
pull by raising or disengaging the implement so that neither
wheel tends to slip.
Operating the hydraulic lift system
The hydraulic lift system provides hydraulic power for
raising front mounted equipment whenever the engine is
running.
To raise the front mounted equipment, pull the lift control
lever rearward and hold it until the desired equipment height
is reached. Figure 3-11
To lower the equipment, push the lever forward. When
pushed all the way forward, the lever will remain in a lowered
float detent position.
IMPORTANT: Always set the lift control lever in the
float detent position when mowing.
109627CE_0512
WARNING: Make sure the area is clear of people
before raising or lowering equipment.
WARNING: Always lower the hydraulic lift and
equipment before stopping the unit.
Weight transfer valve
The weight transfer valve is used to transfer the front
attachment weight to the tractor unit to reduce equipment
weight on turf and prevent damage and improve front drive
wheel traction. Figure 3-11
The weight transfer valve should be used according to the
following procedures;
1. With the engine running, push the hydraulic lift lever
forward to the floating position.
2. Turn the adjusting knob clockwise until the mower or
other equipment lifts off the ground.
3. Turn the adjusting knob counter-clockwise slowly until
the mower deck front gauge wheels or other equipment
just touches the ground, then turn the knob counter-
clockwise 1/4 turn more.
4. Operate the unit over uneven terrain at desired travel
speed and observe the mower deck's front gauge
wheels. If the wheels or equipment do not follow
ground contour, the operation will be affected.
5. To correct this condition, turn the knob 1/4 turn
clockwise at a time until the mower deck's front gauge
wheels follow the ground contour.
Auxiliary hydraulic valve kit (optional)
An Auxiliary Hydraulic Valve kit is available from your
Hustler Dealer, as an option. When using the auxiliary valve,
the lift control lever must remain in neutral. Figure 3-19 and
Figure 3-20
Auxiliary control
valve levers
Figure 3-19
This kit includes control valves, hoses and quick connect
couplers for supplying hydraulics power to optional
attachments. When not in use, the coupler dust covers must be
3-11 REV F