SY215C LC/SY225C LC Excavator OMM
Maintenance
SANY
Operation and Maintenance Manual — 1219
5-21
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
MAINTENANCE PROCEDURES
Relieve Hydraulic System Pressure
1. Park the machine on a flat, level surface, and position the work equipment as shown on the hydraulic tank level
decal.
2. Prepare the machine for service. See “Maintenance Safety” on page 2-8.
3. Turn the key switch to ON.
4. Place the hydraulic lockout lever in the open (unlocked) position.
5. Cycle the joystick controls and travel control levers and pedals to relieve pressure in the hydraulic circuits.
6. Turn the key switch to OFF and place the hydraulic lockout lever in the closed (locked) position.
7. Clean the top of the hydraulic tank.
8. Remove the wing nut (1) from the breather valve.
9. Press the hydraulic tank vent button (2) to relieve
pressure in the hydraulic tank.
10. Install the wing nut.
Fig. 5-2
1
Fig. 5-3
2