Hayter Mowers RZT420H User Manual
Annually or every 100 hours of operation (more often
under extremely dusty, dirty conditions), remove the
blower housing and any other cooling shrouds. Clean
the cooling fins and external surfaces as necessary. Make
sure the cooling shrouds are reinstalled. Torque the
blower housing screws to 5.5 ft-lb (7.5 N-m).
under extremely dusty, dirty conditions), remove the
blower housing and any other cooling shrouds. Clean
the cooling fins and external surfaces as necessary. Make
sure the cooling shrouds are reinstalled. Torque the
blower housing screws to 5.5 ft-lb (7.5 N-m).
Important: Operating the engine with a blocked
grass screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine damage
due to overheating.
grass screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, will cause engine damage
due to overheating.
Fuel System
Maintenance
Maintenance
In certain conditions, petrol is extremely
flammable and highly explosive. A fire or
explosion from petrol can burn you and others
and can damage property.
flammable and highly explosive. A fire or
explosion from petrol can burn you and others
and can damage property.
•
Perform any fuel related maintenance when
the engine is cold. Do this outdoors in an
open area. Wipe up any spillage.
the engine is cold. Do this outdoors in an
open area. Wipe up any spillage.
•
Never smoke when draining petrol, and stay
away from an open flame or where a spark
may ignite the petrol fumes.
away from an open flame or where a spark
may ignite the petrol fumes.
Replacing the Fuel Filter
Service Interval: Every 100 hours—Replace the fuel
filter.
Never install a dirty filter if it is removed from the fuel
line.
line.
1. Park the machine on a level surface and disengage
the blade control switch.
2. Move the motion control levers outward to the
park position, stop the engine, remove the key, and
wait for all moving parts to stop before leaving the
operating position.
wait for all moving parts to stop before leaving the
operating position.
3. Raise the seat and locate the fuel line coming from
the fuel tank below. The fuel filter is in the fuel line
between the tank and engine.
between the tank and engine.
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