Smithco Spray Star 1750D (sn 175D180 – Current) Parts & Service Manual - Manual (Page 11)

9
Service
WHEEL CREEP
WHEEL CREEP
"Creep" is when the engine is running and hydrostatic transmission is in neutral, but due to inadequate align-
ment, wheels still move. Do the following procedure to stop this motion.
1. Lift up and support machine so rear wheels are off the
ground and can turn freely.
2. In the engine compartment, the hydrostatic transmission is
on the left side. The shift arm (D) is under the pump and
comes out the side. The idler arm (B) has a bearing that
runs in the notch of the shift arm. Loosen bolt (A).
3. With engine running, move bearing (B) so it centers on the
shift arm (D) and 'wheel creep' stops.
4. Tighten all fasteners and test by using foot pedal linkage to
see that 'creep' is removed.
5. Turn engine off and lower machine.
SPRAY PUMP WITH ELECTRIC CLUTCH BELT
Located to the right of the engine. Should have approximately 1 /
2
" (13mm) of deflection in the center of the top
strand. Loosen and tighten the 5 /
16
-18 x 1 1 /
4
set screw located on the foot of the pump mount.
PARK BRAKE
Turn knob clockwise on end of park brake to tighten. Turn it counter clockwise to loosen. If finer adjustment is
needed turn clevis on brake cable to adjust length of cable.
SPEED CALIBRATION NUMBERS
The speed calibration numbers for the Spray Star 1752 is 612.
STORAGE
If the engine will be out of service for two or more months, use the following storage procedure.
1. Clean the exterior surfaces of the engine.
2. Change the oil and filter while the engine is still warm from operation.
3. The fuel system must be completely emptied, or the gasoline must be treated with a stabilizer to prevent
deterioration.
If you choose to use a stabilizer, follow manufacturers recommendations, and add the correct amount for
the capacity of fuel system. Fill fuel tank with clean, fresh gasoline. Run engine for 2-3 minutes to get
stabilized fuel into carburetor. Close fuel shut-off valve when unit is being stored or transported.
To empty the system, drain fuel tank and carburetor, or run engine until tank and system are empty.
4. Remove the spark plugs. Add one tablespoon of engine oil into each spark plug hole. Install plugs, but do
not connect the plug leads. Crank the engine two or three revolutions.
5. Store machine in a clean, dry place.