Operator's Manual
28
2. Check the gap between the center and side electrodes
(Fig. 24). Bend the side electrode (Fig. 24) if the gap is
not correct.
0.040 in.
(1.02 mm)
2
3
1
m–1870
Figure 24
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
Installing the Spark Plug(s)
1. Install the spark plug(s) and metal washer. Make sure
the air gap is set correctly.
2. Tighten the spark plug(s) to 20 ft-lb (27 N.m).
3. Push the wire(s) onto the spark plug(s) (Fig. 23).
Greasing the Bearings and
Bushings
The cutting unit must be lubricated regularly. Refer to the
Recommended Maintenance Schedule on page 24. Grease
with No. 2 general purpose lithium base or molybdenum
base grease.
1. Stop the engine, remove the key and disconnect the
spark plug wire(s) from the spark plug(s).
2. Grease the fittings on the three spindle bearings and the
idler arm (Fig. 47).
Note: You’ll have to remove the deck cover to access the
grease fitting on the idler arm.
3. Grease the fittings on the carrier frame mounting tubes
and castor wheels (Fig. 25).
m
-
1
2
Figure 25
1. Carrier Frame Mounting
Tube Grease Fitting
2. Castor Wheel Grease
Fitting
Cleaning the Cooling Systems
Before each use, check and clean hydraulic and engine
cooling systems. Remove any build–up of grass, dirt or
other debris from the oil cooler screen and engine air
intake. Every 100 hours clean oil cooler, engine cylinder
and cylinder head cooling fins. Also clean around
carburetor, governor levers and linkage. This will help
insure adequate cooling to hydraulic pumps, motors and
engine and will reduce the possibility of overheating and
mechanical damage.
1. Remove oil cooler from the engine (Fig. 26). Save all
mounting hardware.
2. Blow out fins of oil cooler and area between fins and
screen with compressed air. If area between screen and
fins is tightly packed, remove oil cooler from screen.
Removing two retaining screws (Fig. 26). Save all
mounting hardware.
3. Clean off engine air intake (Fig. 26).
4. Install oil cooler onto engine with previously removed
hardware (Fig. 26).