Sinoboom AB18EJ - Replace Hydraulic Tank; Suction Filter; Hoses (AB18 HJ Only)

MAINTENANCE PROCEDURES
AB18EJ&18HJ Maintenance Manual 5-31 © Oct 2020
NOTICE
The inspection must be performed with the engine in
off position.
When removing the hose and fittings, the O-rings on
the hose and fittings must be replaced.
1. Open the left side cover of turntable, and locate the
hydraulic tank.
2. Close the hydraulic shutoff valve located on the
side of hydraulic tank.
3. Remove the drain plug at the bottom of the tank,
and completely drain the oil into a suitable vessel.
For the capacity of hydraulic tank, please reference
Performance Parameters, page 2-1。
HIGH PRESSURE HAZARD
Slowly remove the hydraulic
elements to reduce the oil
pressure. High oil pressure may
penetrate the skin. Should any
injury occur, go to a doctor at
once.
4. Disconnect and plug the suction hoses.
5. Disconnect and plug the return hoses.
6. Remove the retaining fasteners from the hydraulic
tank, and remove the hydraulic tank.
7. Rinse out the inside of the tank using a mild solvent,
and dry it up.
8. Install the hydraulic tank onto the machine.
9. Attach the sunction hoses and return hoses to the
hydraulic tank.
D-4 Replace Hydraulic Tank Suction
Filter
Regularly replacing hydraulic tank suction filter is vital
to good machine performance and extending service
life. Dirty hydraulic oil may cause the machine to
function improperly and continued use may result in
hydraulic component damage. Extremely dirty condition
requires the oil changes to be performed more
frequently.
When performing the procedure D-3 Replace
Hydraulic Oil, page 5-30, the hydraulic tank suction
filter must also be replaced.
Figure 5-27
D-5 Replace Coolant and Coolant
Hoses (AB18HJ only)
Regularly replacing the coolant and coolant hoses is
vital to good engine performance and extending service
life. Dirty coolant may cause the machine to function
improperly and continued use could result in hydraulic
component damage. Extremely dirty condition requires
the coolant changes to be performed more frequently.
BURN AND HIGH PRESSURE
HAZARD
Before replacing the coolant, allow
the fluid in the coolant tank to cool
down to room temperature.
NOTICE
Shut off the engine before inspection.
1. Open the right side cover of turntable, and locate
the coolant tank.
2. Disconnect the the coolant return hose, and drain
the coolant inside the return hsoe into a suitable
vessel.