Gravely 992235 - SERVICE AND ADJUSTMENTS; Hydraulic System Purging and Filter

EN - 28
6. Clean the filter mounting surface and
then lubricate rubber gasket on new oil
filter with clean hydraulic oil.
7. Spin new oil filter onto filter housing until
it makes contact. Tighten oil filter
another 3/4 turn.
8. Install the filter cover removed in step 3.
Tighten the mounting screws to
40 – 45 lbf-ft (54 – 61 N•m).
9. Remove the top fill vent port plug and fill
with 15W-50 synthetic motor oil (Gravely
p/n 00057100) or equivalent until oil
reaches the bottom of the drain plug
(about 151 ounces (4474 mL) per
transaxle). Install the drain plug and
tighten to 16.7 lbf-ft (22.5 N•m).
10. Follow the instructions in Add Hydraulic
Fluid on page 27.
11. Repeat steps 2 – 10 for the other
transaxle.
Purging the Hydraulic System
NOTICE: Purge the system of air any time
the transaxle has been opened for
maintenance or when oil has been added to
the system.
1. Make sure the transaxles are filled to the
proper oil level.
2. With the unit up to and facing a wall, jack
up the unit so that both drive wheels are
off the ground.
3. Disengage the parking brake and put the
transaxle bypass valves in the neutral
position. See To Push The Unit on
page 23.
4. Start the engine and slowly move the
steering levers in forward and reverse
five or six times. The oil level will drop.
5. Stop the engine and move the transaxle
bypass valves to the drive position. See
To Push The Unit on page 23.
6. Start the engine and slowly move the
steering levers in forward and reverse
five or six times.
7. Stop the engine, check the hydraulic oil
level and add oil as needed.
8. Repeat steps 3 – 7 until the transaxles
operate smoothly in forward and reverse
at normal speeds without excessive
noise.
CARBON CANISTER FILTER
(If Equipped) (Figure 14)
1. Check the carbon canister filter for
debris accumulation every time the unit
is filled with fuel. Remove any buildup.
2. Clean or replace the carbon canister
filter whenever the engine air filter is
cleaned or replaced.
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. Oil Filter
2. Filter Cover/Drain Plug
3. O-Ring
2
1
3
Figure 14
1. Carbon Canister
2. Carbon Canister Filter
1
2