EN - 25
6. Wipe filter-mounting surface clean.
7. Lubricate rubber gasket on new oil filter
with clean hydraulic oil.
8. Spin filter onto filter housing until it makes
contact, and then turn filter 3/4 turn to
tighten.
9. Reinstall filter guard and torque to 7.3
N•m (65 lb-in). DO NOT overtighten.
10. Add 15W-50 synthetic motor oil (Gravely
p/n 00057100) or equivalent until oil
appears at the bottom of the fill port
(1892.7 mL (64 fl. ounces) per transaxle).
11. Reinstall the vent / fill plug and torque to
20.3 N•m (180 lb-in).
12. Add hydraulic oil to expansion tank until
oil reaches cold fill indicator mark.
13. Repeat steps 3 – 12 for other transaxle.
14. Purge hydraulic system. See Purge
Hydraulic System on page 25.
Purge Hydraulic System
Purge air from hydraulic system after draining
oil or changing the filter.
1. Park unit facing a wall or chock wheels.
2. Release parking brake.
3. Support unit so drive wheels are off the
ground.
4. Bypass transaxles. See Move Unit
Manually on page 18.
5. Start the engine and slowly move steering
levers forward and backward 5 or 6 times.
6. Stop engine.
7. Return transaxle bypass levers to
operating position. See Move Unit
Manually on page 18.
8. Start engine.
9. Slowly move steering levers forward and
backward 5 or 6 times.
10. Stop engine, lower unit to ground and
check oil level. Add oil if needed.
11. Repeat steps 1 – 10 until transaxles
operate smoothly in forward and reverse
at normal speed without excessive noise.
WARNING: AVOID INJURY.
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.
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