3-13
REAR AXLE DIFFERENTIAL CASE AND
FINAL REDUCTION GEAR CASES
Checking Oil Level: Check the oil level every
100 hours.
1. With the engine off and the tractor standing
level, check the oil level using the combined
dipstick/filler plug
A
. The oil is at the correct
level when it reads between the two marks
on the dipstick.
NOTE: Place the dipstick/filler plug
A
horizontally over the oil inlet and measure
the oil level. Do not screw dipstick into
housing when checking oil level.
2. If the level is low, add hydraulic oil through
the filler hole. Do not fill above the dipstick full
mark.
3. Reinstall the dipstick/filler plug
A
.
Changing Oil: Change the oil every 600
hours.
1. With the oil at normal operating temperature,
drain the oil by removing the rear axle
differential
B
and final reduction gear case
drain plugs
C
. Reinstall the plugs after the oil
has drained. Discard the oil.
2. Supply new hydraulic oil into the fill hole
A
.
NOTE: By this method, it takes much time
until the oil is spread fully into the final
reduction gear case. The oil can be supplied
by the following method also.
1. Remove the right and left rear wheels.
2. Oil supply plugs are located on the front side
of the right and left final reduction gear case.
Remove the plugs.
3. By supplying the hydraulic oil from the plug
holes, the final reduction gear case can be
filled more quickly, reducing the oil supply
time.
3-12
COOLING SYSTEM
The CM mower engine must operate at the
correct temperature to obtain maximum
efficiency and service life. This is dependent on
the cooling system.
Always fill the system with a 50/50 solution of
permanent antifreeze and clear water.
Checking the Coolant Level
NOTE: Check the coolant level daily or after
every 10 hours of operation. The engine
should be cold when coolant level is
checked.
Open the hood, and check the coolant recovery
reservoir located next to the battery. The fluid
should be between the low and the full marks
on the reservoir.
If the coolant recovery reservoir is empty,
remove the radiator cap
A
and add a 50/50
solution of water and antifreeze until the radiator
is full. Then add the water antifreeze solution to
the coolant recovery reservoir until it is to the full
level.
WARNING: THE COOLING SYSTEM OPE-
RATES UNDER PRESSURE CONTROLLED
BY THE RADIATOR CAP. IT IS DANGEROUS
TO REMOVE THE CAP WHILE THE SYSTEM
IS HOT. ALWAYS COVER THE CAP WITH A
THICK CLOTH AND TURN IT SLOWLY
COUNTERCLOCKWISE TO THE FIRST
STOP. ALLOW ALL PRESSURE TO ESCAPE
BEFORE REMOVING THE CAP COM-
PLETELY.
If the coolant level is below the low mark on the
reservoir, add a 50/50 solution of water and
antifreeze to the coolant recovery reservoir
bringing the level to the full mark.
Be sure that the radiator fins are clear of chaff
and dirt to allow free air movement.
LUBRICATION AND MAINTENANCE
GENERAL MAINTENANCE
A
B
COOLANT SYSTEM
1. Radiator Cap
2. Coolant Reservoir
LUBRICATION AND MAINTENANCE
A
ADD
MARK
FULL
MARK
REAR AXLE DIFFERENTIAL LUBRICATION
1. Level / Filler Plug
B
C
REAR AXLE DIFFERENTIAL / FINAL REDUTION
2. Rear Axle Differential Drain Plug
3. Final Reduction Lubrication Drain Plug
