d)Lubricate drive wheel hubs once a year. First remove wheel, then remove hub cap. Lubricate the grease fitting on each wheel hub with an NGLI grade no. 2 multipurpose gun grease, until grease appears through outer bearing. Reinstall hub caps and wheels.
e)Replace
5.1.15Check spark plugs. Service Interval: 160 hrs.
a)Remove spark plugs, check condition and adjust plug gap or replace with new plugs. See Engine Owner's Manual.
5.1.16Remove engine shrouds and clean cooling fins. Service Interval: See Engine Owner's Manual
a)Stop engine, wait for all moving parts to stop, and remove key or spark plug wire(s).
b)Remove cooling shrouds from engine and clean cooling fins. Also clean dust, dirt and oil from external surfaces of engine which can cause improper cooling.
c)Make sure cooling shrouds are properly reinstalled. Operating the engine without cooling shrouds will cause engine damage due to overheating.
5.1.17Change fuel filter.
Service Interval: As Required
a)A fuel filter is installed in the fuel line between the fuel tank and the engine. Replace when necessary.
5.1.18Refer to Engine Operators Manual for detailed maintenance regarding the engine.
5.1.19Thread locking adhesives such as “Loctite 242” or
a)Transmission drive sheave setscrews.
b)Wheel drive sheave setscrews on transmission output shafts.
c)OPC lever setscrews.
d)Sheave retaining bolt in end of engine crankshaft.
e)Lower Sheave retaining bolt on clutch arm.
f)Fuel tank bulkhead fitting threads (S/N 370,000 & higher).
g)Cutter housing spindle nut.
Adhesives such as “Loctite RC/609 or
a)OPC lever hubs and
NOTE: Care must be used not to bond the bearing, next to each OPC hub, to the cross shaft which could cause binding of the OPC levers and erratic operation.
b)Fuel tank studs, where studs are inserted into tank.
5.1.20An
a)Between engine crankshaft and transmission and blade drive sheaves.
b)On clutch arm assembly between bearings and shaft and between lower sheave and shaft.
c)Between transmission input shaft and sheaves.
d)Between transmission output shafts and sheaves.
e)Between transmission output shafts and bearings.
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