SY215C LC/SY225C LC Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 1219
5-61
TABLE
O
F
CONTENTS
INTRODUCTION
SAFETY
M
A
CHINE
CO
N
T
RO
L
S
MACHINE
OPE
R
A
T
IO
N
MAINTENANCE
S
PECI
F
ICA
T
IO
NS
OPT
IONAL
EQ
U
IPM
E
N
T
Change the Hydraulic Oil
1. Park the machine on a flat, level surface, and position the work equipment as shown on the hydraulic tank
decal.
2. Prepare the machine for service. See “Maintenance Safety” on page 2-8.
3. Start and idle the engine for 1 minute.
4. Shut down the engine.
5. Turn the key switch to ON.
6. Place the hydraulic lockout lever in the open (unlocked)
position.
7. Cycle the joysticks controls and travel control levers
and pedals to relieve pressure in the hydraulic circuits.
8. Turn the key switch to OFF and place the hydraulic
lockout lever in the closed (locked) position.
9. Clean the top of the hydraulic tank.
10. Remove the wing nut (1) from the breather valve.
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 injury.
NOTICE!
If a breaker attachment is be used, change hydraulic oil and filters every 500 hours to avoid
damage to the machine.
Fig. 5-78
1