Check Safety Interlock System; Check Hydraulic System - Gravely Pro-Turn 400 Series Operator's Manual

CHECK SAFETY INTERLOCK
SYSTEM
See Before Operation on page 18. If system
does not operate correctly, see your dealer
for repair. DO NOT operate until repairs are
made.

CHECK HYDRAULIC SYSTEM

Check Hydraulic Oil Level
See Figure 27.
1. Place unit in service position. See
Service Position on page 23.
2. Check oil level in expansion tanks. Oil
should reach the cold fill indicator mark.
IMPORTANT: Engine should be cold when
checking initial oil level.
1
1. Cold Fill Indicator Mark
Figure 27
3. Operate engine for 1 minute and recheck
oil levels.
4. Add hydraulic oil, if needed. See Add
Hydraulic Oil on page 25.
Add Hydraulic Oil
1. Place unit in service position. See
Service Position on page 23.
2. Remove hydraulic oil expansion tank
caps.
3. Fill expansion tanks with 15W-50
synthetic motor oil (Gravely
p/n 00057100) or equivalent until oil
reaches the cold fill indicator mark. See
Figure 27.
4. Reinstall expansion tank caps.
Change Hydraulic Oil and Filter
1. Operate unit for a few minutes to warm
hydraulic oil.
2. Stop engine, remove key and wait for all
moving parts to stop and for hot parts to
cool.
3. Position container under oil filter to catch
used oil.
4. Remove hardware retaining transaxle
skid plate and remove skid plate. See
Figure 50.
See Figure 28.
5. Remove filter cover and o-ring from
transaxle. Retain cover; discard o-ring.
6. After oil has drained, remove oil filter and
discard.
2
1. Filter Cover
2. O-Ring
3. Oil Filter
7. Wipe filter-mounting surface clean.
8. Lubricate rubber gasket on new oil filter
with clean hydraulic oil.
9. Spin filter onto filter housing until it makes
contact, and then turn filter 3/4 turn to
tighten.
10. Reinstall filter cover.
11. Remove the vent / fill plug and add
15W-50 synthetic motor oil (Gravely
p/n 00057100) or equivalent until oil
appears at the bottom of the fill port
(4475 mL (151 fl. ounces) per transaxle).
12. Reinstall the vent / fill plug and torque to
22.6 N•m (16.7 lb-ft).
13. Add hydraulic oil to expansion tank until
oil reaches cold fill indicator mark. See
Check Hydraulic Oil Level, step 4.
14. Repeat steps 3 – 13 for other transaxle.
15. Purge hydraulic system.
EN - 25
3
1
Figure 28