General
The "Automatic on Demand" four wheel drive feature, on
this vehicle, does not require operator activation. The
front wheel drive is not engaged (no power delivered to
front wheels) until the rear wheels begin to lose traction.
The bidirectional clutch senses the rear wheels slipping,
engages the front wheel drive, and delivers power to the
front wheels. The four wheel drive system continues to
deliver power to the front wheels until the rear wheels
Check Front Differential Oil
The differential is filled with 10W30 oil. Check level of oil
every 100 hours or monthly. Capacity of system is 1 qt.
1. Position the vehicle on a level surface.
2. Clean area around fill/check plug on the side of dif
ferential.
3. Remove fill/check plug and check level of oil. Oil
should be up to the hole. If oil is low, add 10W30 oil.
4. Re–install fill/check plug.
Workman 4000 Series
have enough traction to move the vehicle without slip
ping. Once this occurs, the system stops delivering pow
er to the front wheels and the handling characteristics
become similar to that of a two wheel drive vehicle. The
four wheel drive system functions in both froward and
reverse, however, when turning the rear wheels will slip
slightly more before power is delivered to the front
wheels.
2
1. Front differential
2. Drain plug
Rev. B
Page 10 – 3
1
3
Figure 1
3. Fill/check plug
Front Wheel Drive Section (4WD)