Exmark TTS20KAE523 Lawn Mower User Manual


 
Maintenance
PTO Safety Switch
Mounted to a tab on the inside left side of the fuel
tank support.
1. Stop engine and wait for all moving parts to stop.
Engage parking brake. Remove ignition key or
spark plug wire(s).
2. With PTO disengaged and the bellcrank touching
the rear of the slot in the engine deck, adjust the
PTO safety switch (if needed) until the bellcrank
arm is 5/16 inch (7.9 mm) from the switch body.
3. Be sure the bellcrank Does Not touch the switch
body or damage to the switch could occur.
4. Retighten PTO switch mounting hardware.
Cleaning
Clean Engine and Exhaust
System Area
Service Interval: Before each use or daily
(May be required more
often in dry or dirty
conditions.)
CAUTION
Excessive debris around engine cooling air
intake and exhaust system area can cause engine,
exhaust area, and hydraulic system to overheat
which can create a re hazard.
Clean all debris from engine and exhaust system
area.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Clean all debris from rotating engine air intake
screen, around engine shrouding, and exhaust
system area.
3. Wipe up any excessive grease or oil around the
engine and exhaust system area
Remove Engine Shrouds and
Clean Cooling Fins
Service Interval: Every 100 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove cooling shrouds from engine and clean
cooling ns. Also clean dust, dirt, and oil from
external surfaces of engine which can cause
improper cooling.
3. Make sure cooling shrouds are properly
reinstalled. Operating the engine without
cooling shrouds will cause engine damage due to
overheating.
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