Mower Blades - Gravely Promaster 34Z Owner's/Operator's Manual

MOWER BLADES

Remove
CAUTION: Use sturdy gloves or padding to protect
hands when working with mower blades.
1. Turn the engine off. Remove the ignition key. Remove the
ignition wire from the spark plugs.
2. Remove the bolts, lock washer, flat washers, and blades
from the spindle shafts.
Replace
1. Put the blades, flat washers, lock washers, and the bolts
back on the spindle shafts.
2. Tighten the bolts to a torque of 115-125 lbf-ft
(156-169.5 N•m).
3. Replace the ignition wire on the spark plugs.
Sharpen the Mower Blades
CAUTION: DO NOT sharpen mower blades while on
unit. An unbalanced mower blade will cause excessive
vibration and eventual damage to unit. Check mower
blade balance before reinstalling blades.
NEVER weld or straighten bent blades.
1. Remove mower blade from unit.
Discard mower blade if:
• More than 1/2 in. (1.27 cm) of metal is removed.
• Air lifts become eroded.
• Blade is bent or broken.
2. Sharpen mower blade by removing an equal amount of
material from each end of mower blade. DO NOT change
angle of cutting edge or round the corner of the mower
blade.
3. Check mower blade balance.
Slide mower blade on an unthreaded bolt. A balanced
blade should remain in a horizontal position. If either end of
mower blade moves downward, sharpen the heavy end
until blade is balanced.
4. Install mower blade(s) on unit.
5. Tighten the bolts to a torque of 115-125 lbf-ft
(156-169.5 N•m).
DO NOT Sharpen to This Pattern
2
DISCARD if More Than
1/2 in. (1.27 cm)
3
4
Sharpen to This Pattern
1. Cutting Edge
2. Square Corner
BATTERY
WARNING: AVOID INJURY. Read and understand
entire Safety section before proceeding.
WARNING: Battery posts, terminals and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
Unit comes equipped with a maintenance-free battery that
requires no regular maintenance except cleaning the terminals.
Remove Battery
1. Shut OFF engine. Engage parking brake. Remove the
ignition key.
2. Place seat in the service position (See Maintenance
Schedule on page 13).
3. Disconnect cables from battery (negative, then positive)
(Figure 8).
4. Remove hold down and remove battery.
Replace Battery
1. Replace battery and secure with battery hold down.
2. Reconnect cables to battery (positive, then negative).
Position boot over positive terminal.
3. Return seat to operating position.
GB-15
4
1
3. Air Lift Erosion
4. Air Lift
Figure 7
1
OT0792