SANY SY155U, Руководство по эксплуатации и обслуживанию, Страница: 163 / 192

MAINTENANCE
5-53
SY155U Excavator OMM
NOTICE!
Overfilling the final drive case may damage the
case seals. This could result in machine damage
and improper machine operation.
7. Replace the O-ring on each plug.
8. Install and tighten the plugs.
NOTICE!
If oil leaks are found during the oil level
inspection, stop the inspection to locate and
repair the cause of the oil leaks. Failure to do this
could result in machine damage and improper
machine operation.
9. Check for external leaks.
Change Final Drive Oil
WARNING
• Allow the hydraulic system to cool before
servicing. Hot hydraulic 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.
If the hydraulic oil is contaminated (discolored or
containing debris), change the oil regardless of the
service interval hours on the machine. If possible, find the
cause of the contamination before changing the hydraulic
oil.
1. Position the machine on a flat, level surface.
2. Prepare the machine for checks and inspections.
See “Maintenance Safety” on page 2-5.
3. Open the appropriate access covers or compartment
doors. See “Doors, Panels, Covers, and Filler Cap”
on page 4-5.
4. Turn the battery disconnect switch to OFF. See
“Battery Disconnect Switch” on page 3-15.
5. Collect a final drive oil sample before changing the
final drive oil. See “Collect a Final Drive Oil Sample”
on page 5-58.
0003598
Figure 5-121
6. Place a suitably sized container under the final drive
drain plug (2).
7. Loosen the final drive drain plug slowly to relieve
remaining hydraulic system pressure.
8. Remove the oil level check plug (1) and allow the oil
to drain.
NOTE: For the oil capacity of the final drive, see
“Capacities” on page 5-11.
NOTICE!
Dispose of used oil in accordance with all
applicable environmental regulations. Failure to
do so could damage the environment.
9. Replace the O-ring on the drain plug.
10. Install and tighten the drain plug.
11. Remove the oil filler plug (3) and add oil until the
level is within 0.4 in. (10 mm) of the bottom of the
check hole.
NOTICE!
Overfilling the final drive case may damage the
case seals. This could result in machine damage
and improper machine operation.
12. Replace the O-rings on the oil level check plug, oil
filler plug and the oil level check plug.
13. Install and tighten the oil filler plug and oil level check
plug.
NOTICE!
If oil leaks are found during the oil level
inspection, stop the inspection to locate and
repair the cause of the oil leaks. Failure to do this
could result in machine damage and improper
machine operation.
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