Gravely 994135 - Mower Blades

EN - 23
9. Purge air from the hydraulic system. See
Purging the Hydraulic System on
page 23.
Purging the Hydraulic System
1. With the unit up to and facing a wall, jack
up the unit so that both drive wheels are
off the ground.
2. Disengage the parking brake and put the
transaxle bypass levers in the neutral
position. See To Push The Unit on
page 17.
3. Start the engine and slowly move the
steering levers forward and reverse five
or six times.
4. Stop the engine and put the transaxle
bypass levers in the drive position. See
To Push The Unit on page 17.
5. Start the engine and slowly move the
steering levers in forward and reverse five
or six times.
6. Stop the engine, check the oil level and
add oil as needed.
7. Repeat steps 2 – 6 until the transaxles
operate smoothly in forward and reverse
at normal speeds without excessive
noise.
MOWER BLADES
See Figure 14.
Remove
1. Turn the engine off. Remove the ignition
key. Disconnect spark plug wires.
2. Remove the bolts, bevel washers, blades
and spindle hubs from the spindle
assemblies.
Replace
1. Install the blades, Belville washers and
bolts on the spindle assemblies.
2. Torque bolts to 156 – 217 N•m
(115 – 160 lb-ft).
3. Reconnect spark plug wires.
WARNING: This adjustment
requires operating the engine. Use
extreme care to avoid contact with
moving parts and hot surfaces. Be
sure rear of unit is well supported
and secure before starting engine.
Figure 13
1. Drain Plug
2. Oil Filter
3. Filter Guard
4. Mounting Hardware
3
2
1
4
CAUTION: Use sturdy gloves or
padding to protect hands when
working with mower blades.
Rotation of one blade will rotate
the other blades.
Figure 14
2
1
3
1. Blade Bolt
2. Belville Washer
3. Blade
4. Spindle Assembly
4