Maintenance
SY26U Excavator OMM
5-36
Operation and Maintenance Manual — 1119
SANY
Replace the Hydraulic Oil Return Filter
1. Prepare the machine for service. See “Maintenance Safety” on page 2-8.
2. Relieve system pressure. See “Relieve Hydraulic System Pressure” on page 5-32.
3. Clean the top of the hydraulic tank and the return filter
cover (1).
4. Loosen the four fasteners (2) securing the return filter
cover. Push the cover down against spring pressure
while removing the fasteners. Remove the cover.
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
cover. Remove the filler cover slowly to relieve any pressure to prevent injury.
Failure to follow these warnings could result in death or serious injury.
NOTICE!
Examine the return filter for metal chips and debris. An excessive amount of bronze and steel
chips indicates that the hydraulic pump or a hydraulic motor has been damaged. Rubber
debris indicates seal and/or gasket damage. Inspect these components before filling the
hydraulic tank and returning the machine to service.
NOTICE!
Dispose of used oil and filter in accordance with
all applicable environmental regulations. Failure
to do so could result in damage to the
environment.
Fig. 5-25
0003233
1
2