
',;,(&+233(5 SECTION 3
MAINTENANCE & SERVICE
DECK PITCH ADJUSTMENT
The mower deck is set to mow level at 3 ½” from the
factory, using these settings: MOWER DECK FRONT
– 2nd hole from the top. MOWER DECK REAR –top
hole. AXLE MOUNT – 2nd hole from the top. When
mowing at a lower height, with the factory setting it is
possible to leave a streaking appearance. This is
easily remedied by pitch adjustment of the deck.
Dropping the rear of the deck one hole will result in a
1” change in pitch. However, dropping the front AND
the rear will result in only a ½” change pitch. Which
should provide satisfactory results when mowing at a
lower height.
TRANSMISSION DRIVE BELT ADJUSTMENT
(vertical shaft engines only)
1. Loosen engine mounting nuts and bolts.
2. Loosen drive belt tensioning jam nut, and tighten
drive belt tensioning bolt until ½” to ¾” deflection
exists midway between the double engine and
transmission pulleys.
3. Re-tighten engine mounting bolts and locknuts.
4. Re-tighten jam nut.
RECOMMENDED HYDRO FILTER CHANGE
Change filter at 500 hours or annually.
1. Clean area around filters so it’s free of any
dirt and debris.
2. Fill replacement filter with 15W40 Schaeffers oil,
Part #60106
. Filter will absorb oil, so fill until it
takes no more. Pinch line to stop oil from leaking.
3. Remove old filter on unit and replace with new.
4. You may want to loosen the charge line at the
pump and pressurize the reservoir to purge
air from the line, purge the line until no air is
present (tighten fitting).
5. With handles in neutral crank engine over with the
starter and observe oil movement in clear line
from filter base to the charge pump (flashlight
may be necessary).
6. Oil should be flowing from the filter to the
pump when you are cranking the engine. DO
NOT START THE ENGINE UNLESS OIL IS
FLOWING FROM FILTER TO PUMP.
7. If step 6 is not accomplished, check for air
leaks between charge pump port and
reservoir. Note: You must have pump primed
before starting the engine, if it is not primed it
will self-destruct in 16 seconds or less.
8. With above steps accomplished, leave handles in
neutral and throttle at idle speed. You may now
start the unit. Let idle in neutral and observe oil flow
in clear line from filter mount to pump. It should be
flowing toward the pump. You may see a few air
pockets shoot through the line. This is ok as
long as you have movement toward the pump.
If oil stops flowing toward the pump shut down
immediately (check for air leaks between
charge pump and inlet to reservoir).
9. Let unit idle in neutral for at least 2 minutes
and until no more air is observed. Bring engine up
to 2000 r.p.m.
10. Then gently stroke levers for an additional 2
minutes. At this point unit can be put back in
service.
NOTES:
1. Failure to observe this procedure will
destroy pumps in 16 seconds or less.
2. Pump failure due to charge pump
loosing its prime is not a warranty
item.
3.Read instructions carefully.
4. You may benefit by reading instructions
twice.
LUBRICATION
See service intervals.
NEUTRAL ADJUSTMENT
THE FOLLOWING PROCEDURE SHOULD BE DONE
WITH THE REAR WHEELS OFF THE GROUND AND
THE ENGINE ON.
1. Remove clevis pin from neutral adjustment yoke at
right side pump control arm and at steering pivot
on left side drive linkage.
2. Loosen neutral spring mounting bolt, located on oil
filter mounting bracket, adjust neutral spring
assembly to the front or rear until the pump is in
neutral and there is no motion at drive wheels.
Once this is achieved, tighten neutral spring
mounting bolt.
3. Loosen jam nut on adjustment yoke and turn yoke
so that clevis can be inserted without force. When
control lever is in neutral lock position, the wheel
should continue to sit still.
4. Start engine, operate tires in forward and reverse
and return lever to the neutral lock position, tires
should not move, if tires move repeat above
procedure.
FORWARD LEVER STOP ADJUSTMENT
THIS PROCEDURE DONE WITH THE ENGINE OFF!
1. Move control lever to the full forward position,
applying gentle pressure.
2. With control lever in full forward position, turn
forward lever, stop bolt down, until it contacts
steering lever pivot block arm. Once contact is
made, give additional ¼ to ½ turn. Re-tighten jam
nut.
3. Test drive machine and observe operation at full
forward on level surface. If machine does not go
straight, correct by slowing fast wheel, (lengthen
lever stop bolt). Adjust lever stop until machine
travels in a straight path with both control levers at
full forward.
4. Align control levers by swinging into neutral
position and bending levers until handles are
parallel. Both controls should be spaced
evenly at rest and should travel together and
reach full forward uniformly.
*Lubricate between the transmission frame mounting
point and steering lever pivot block.
*NOTE – Late model machines are equipped with a
greaseable mounting bolt. These mounting bolts utilize
a compression spring for positive steering resistance.
Although this assembly does not require adjustment, it
should be lubricated every 100 hours.