Maintenance Instructions

CHECKING/SERVICING

Intersection

Wear Area

Sharpen at Original

30° Angle

30°

Wing Tip

Do Not Grind or

Sharpen on Underside

Mower Blade Profile For Sharpening

Blade Balancer

Blade Balanced on Magnetic

Wall-Mounted Balancer

7.Mount the blade with wing tips pointing up into the housing. Reinstall the blade, washer, lock washer, and nut. Tighten the nut to 60 ft-lb (81.3 N·m).

Drive Belts

Raise the body and inspect the condition of the two

(2)drive belts after every 25 hours of operation -- engine/PTO drive and ground drive. If the belts show signs of cracking or deteriorating, the belts should be replaced. Refer to REPLACING/REPAIR- ING the Drive Belts in this section.

Mower Deck Gearbox Oil Seals

The mower deck gearbox seals should be inspected every 25 hours for evidence of oil leaking; particularly the lower oil seal on the blade drive gear- box. This seal is protected by the trash guard on the blade hub and seal protector plate on the housing, but is still vulnerable to seal damage due to operating in an adverse environment. The mower blade must be removed for inspection of the seal, so it is recommended to inspect the gearbox seals when blades are removed for sharpening. If an oil leak is noted, the seal should be replaced and the gearbox assembly relubricated. Refer to Mower Deck Gearbox Lubrication in this section.

Spark Plugs

Every 100 hours, remove the spark plugs, inspect, clean, and reset the gap (or replace with a new plug). Clean spark plug with a wire brush. If the electrodes are burned short or pitted, replace the plug (refer to Specifications for the proper type of replacement plug). Check the spark plug gap with a wire-type feeler gauge and set the gap between 0.028 and 0.032 in. (0.7 and 0.8 mm). Reinstall and tighten to 17 ft-lb (23 N·m). Both spark plugs should be replaced yearly.

Breaker Points

The Briggs & Stratton engine is equipped with electronic ignition. No breaker points, maintenance, or adjustments are necessary with this system. Contact an authorized Briggs & Stratton engine dealer in case of ignition failure.

Fuel Lines and Clamps

Every year, inspect the fuel line from the tank to engine for deterioration or damage. Also, inspect the fuel line clamps for tightness. Good preventive maintenance calls for complete replacement of fuel lines and clamps every two (2) years.

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