John Deere Zero-Turn Mower Z920R

Change transmission oil and filters. (Every 500 hrs after 300 hour Initial Break In)

Lubricate front caster wheel pivots

Remove cooling shroud and remove debris (or annually)

Replace metal fuel filter (if equipped). (Every 1000 Hours or Yearly)

Replace spark plugs. (Every 1000 Hours or Yearly)

Sign off on the 500 Hourly Maintenance

Check and adjust valve clearance (Kawasaki engines only)

Replace primary air cleaner element

Replace plastic fuel filter (if equipped)

Rinse hood and entire machine with clean water to remove dirt and dust that may scratch the surface

Wash surface with clean water and a mild liquid automotive washing soap

Dry thoroughly to avoid water spots

Wax the surface with a liquid automotive wax. Use products that specifically say “contains no abrasives

Buff applied wax by hand using a clean, soft cloth

Warning: Park machine safely before starting the procedure

Are both motion control levers moved forward?

Are the control levers equally aligned?

If position of control levers are unequal, an adjustment is necessary

Are both left and right motion control levers moved to desired position on control arm until levers are aligned?

Sign off on the motion control levers maintenance

Warning: Ensure the mower is turned off and unplugged before starting the procedure.

Wooden block used to prevent mower blades from spinning

Screw (A), hardened washer (B), large concave blade washer (C), and blade (D) removed

Replacement blade installed with blade wing facing toward top of mower deck

Hardened washer, blade, large concave blade washer, and cap screw installed

Blade bolts tightened to specification

Mower deck adjusted to a desirable cutting height

Sign off on the mower blades replacement