Toro 74020 Operator's Manual page 36

Maintenance Service
Interval
Every 200 hours
Every 250 hours
Every 300 hours
Every 400 hours
Every 400 hours or yearly,
whichever comes first
Every 500 hours
Every 600 hours
Monthly
Yearly
Yearly or before storage
Important:
Refer to your engine owner's manual for additional maintenance procedures.
CAUTION
If you leave the key in the switch, someone could accidently start the engine and seriously
injure you or other bystanders.
Shut off the engine and remove the key from the switch before you perform any maintenance.
Maintenance Procedure
• For Kawasaki engines—change the engine-oil filter (more often in dirty or dusty
conditions).
• For Kohler Engines—change the engine-oil filter (more often in dirty or dusty
conditions).
• For Kohler Engines—check the spark plug(s).
• For Kawasaki engines—replace the primary air filter (more often in dirty or dusty
conditions).
• For Kawasaki engines—check the safety air filter (more often in dirty or dusty
conditions).
• For Kawasaki engines—Check and adjust the valve clearance. See an Authorized
Service Dealer.
• For Kohler engines—replace the primary air filter (more often in dirty or dusty
conditions).
• For Kohler engines—check the inner air filter (more often in dirty or dusty conditions).
• Grease the caster pivots (more often in dirty or dusty conditions).
• After the initial change—change the hydraulic-system filters and fluid when using
Toro® HYPR-OIL™ 500 fluid (change it more often under dirty or dusty conditions).
• For Kawasaki engines—replace the safety air filter (more often in dirty or dusty
conditions).
• For Kohler Engines—replace the spark plug(s).
• Replace the fuel filter (more often in dusty, dirty conditions).
• For Kohler engines—replace the inner air filter.
• Check the battery charge.
• Repack the caster-wheel bearings (more often in dirty or dusty conditions).
• Greasing the caster-wheel hubs.
• Paint chipped surfaces.
• Complete all the procedures in the Storage chapter.
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