John Deere Zero-Turn Mower Z930M EFI

Park machine on a hard, level surface.

Stop the engine and lock the park brake.

Raise the mower deck to the transport position.

Lift the operator seat and lock into position.

While Looking from Rear of Machine:

Turn the hex nut (B) clockwise to increase the spring tension.

Turn the hex nut (B) counterclockwise to decrease the spring tension.

Sign off on the spring tension maintenance

Lower mower deck to the lowest cutting height position

Disengage belt shield from grommet

Slide belt shield toward outside of deck to remove

Repeat steps for the other shield

Slide belt shield into position under frame

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

Wooden block used to prevent blades from spinning?

Screw, hardened washer, large concave blade washer, and blade 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

Clean area around dipstick before removing it

Remove dipstick and wipe it clean

Install dipstick in tube, but do not screw onto threads

Check oil level on dipstick; make sure that oil level is between the ADD and FULL marks

If oil is low, add oil to bring oil level no higher than the FULL mark on dipstick

If oil level is above the FULL mark, drain to the proper level

Number of bolts removed from each side of machine

Upload a photo of the removed engine access grill

Engine access grill installed with four bolts

Sign off on the engine access grill replacement