SANY SY16C, Operation And Maintenance Manual, Page: 169 / 208

SY16C Excavator OMM Maintenance
SANY
Operation and Maintenance Manual — 0420
5-37
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INTRODUCTION
SAFE
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MACHIN
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CONTROLS
MACHINE
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MA
INTENANCE
SPEC
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EQUI
PMENT
Relieve Hydraulic System Pressure
Relieve pressure before disconnecting or servicing hydraulic system components.
1. Prepare the machine for service. See “Maintenance Safety” on page 2-9.
2. Turn the key switch to ON. Do not start the engine.
3. Move the hydraulic lockout control lever to the unlocked (open) position.
4. Move all control levers to full stroke in all directions to release internal pressure.
5. Turn the key switch to OFF.
Check the Hydraulic Oil Level
See “Hydraulic Oil Level Check” on page 4-11.
Add Hydraulic Oil
1. Position the work equipment as shown on the hydraulic tank decal. See “Hydraulic Oil Level Check” on
page 4-11.
2. Relieve system pressure. See “Relieve Hydraulic System Pressure” on page 5-37.
3. Prepare the machine for service. See “Maintenance Safety” on page 2-9.
4. Remove the left access panel. See “Remove/Install the Left Access Panel” on page 3-25.
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. Relieve any pressure to prevent injury.
Failure to follow these warnings could result in death or serious injury.
NOTICE!
Filling the hydraulic tank past the recommended maximum level may result in hydraulic
system damage.