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Maintenance Procedures
SY75C Excavator OMM
5-52
Operation and Maintenance Manual — 0220
SANY
Hydraulic Line Connections - Check
1. Open right rear door (a).
2. Examine hydraulic hose (b) between the tank and the
hydraulic pump for cracks, damage, or abnormal wear.
NOTE:
Replace the hose if it cracked, damaged or worn.
3. Check fittings (c) at both ends of all flexible hoses.
4. Inspect all bolt locations.
5. Replace any damaged or defective bolts.
6. Tighten any loose bolts.
NOTE:
Do not use thread sealant when reinstalling loose
bolts or installing new bolts.
Hydraulic Oil - Add
1. Position the machine work equipment as shown on the hydraulic oil tank decal.
NOTICE!
These bolts/screws at each end of the hoses
may loosen occasionally due to vibration. Leaks
at the angled seals will eventually result in pump
failure
.
CAUTION!
Hydraulic oil may be hot and under pressure. Always wait for the machine to cool down
before attempting to open the hydraulic oil system. Failure to follow this process could result
in minor or moderate injury.
Fig. 5-72
a
Fig. 5-73
b
c
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