Service Intervals

Break-In After 8 Hours

• Check mower deck level.

Every 50 Hours or Annually (Whichever Comes First)

• Change engine oil. (Service more frequently under dusty conditions.)
• Replace engine oil filter. (Service more frequently under dusty conditions).
• Lubricate mower deck spindles.
• Lubricate mower idler arm. (All decks except 42A)
• Check mower deck level. Level if necessary.

Every 100 Hours or Annually (Whichever Comes First)

• Replace spark plugs.
• Replace air filter element(s). (Service more frequently under dusty conditions.)
• Replace fuel filter.
• Check mower belt. Replace if necessary.
• Sharpen / replace mower blades.
• Clean underside of deck.
• Check tire pressure.
• Clean engine cooling fins.
• If there is debris that cannot be blown out, remove blower housing for complete cleaning.

Every 200 Hours

• Check / adjust engine valve clearance. See your John Deere dealer for this service.