SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 157 / 192

MAINTENANCE
5-47
SY155U Excavator OMM
15. Set the hydraulic lockout control lever to the
unlocked (open) position.
NOTE: See “Hydraulic Lockout Control Lever” on
page 3-6 for additional information.
16. Idle the engine for 10 minutes to purge air from the
hydraulic system.
17. Check for leaks.
18. Shut down the engine.
19. Check for leaks. Tighten connections if leaks are
found.
20. Install the panel under the hydraulic tank with four
fasteners.
Check the Hydraulic Pump
WARNING
• Allow the hydraulic system to cool before
servicing. Hot oil may cause burns or other
serious injury.
• The hydraulic tank may be under pressure, and
hydraulic oil may be present at the filler cap.
Relieve pressure to prevent injury.
Failure to follow these warnings could result in
death or serious injury.
0003612
Figure 5-105
1. Prepare the machine for checks and inspections.
See “Maintenance Safety” on page 2-5.
2. Open the appropriate access covers or compartment
doors. See “Doors, Panels, Covers, and Filler Cap”
on page 4-5.
3. Start the engine.
NOTE: Contact a SANY dealer if any abnormality is
found.
4. Inspect the hydraulic pump (1) for leaks, noise, and
function. Repair as needed.
5. Shut down the engine.
6. Close the right rear access panel.
Check the Hydraulic Pump Mounting
Fasteners
1. Prepare the machine for checks and inspections.
See “Maintenance Safety” on page 2-5.
2. Open the appropriate access covers or compartment
doors. See “Doors, Panels, Covers, and Filler Cap”
on page 4-5.
3. Turn the battery disconnect switch to OFF. See
“Battery Disconnect Switch” on page 3-15.
NOTICE!
Do not overtighten the mounting fasteners. This
could result in machine damage and improper
machine operation.
0003612
Figure 5-106
4. Inspect the hydraulic pump for loose, broken, or
missing pump mounting fasteners (1). Replace any
missing or damaged fasteners.
5. Inspect the pump for leaks or cracking at the
mounting fastener locations.
6. Close the right rear access door.
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