Sinoboom TB20J Plus - Page 39

MAINTENANCE INSTRUCTIONS
TB20J Plus Maintenance Manual 27
© Feb. 2023
Table 4-2 Inspection and Preventative Maintenance Schedule (Continued)
Items
Intervals
Before each
delivery
1
or
quarterly
2
Semiannually
3
Annually
4
Bearing
1, 2, 5, 12 1, 2, 5, 12 1, 2, 5, 12
Turntable assembly
Turntable 2 2 2
Slewing bearing
1
50
，2，6，12 1
50
，2，6，12 1
50
，2，6，8，12
Slewing reducer
1, 2, 6 1, 2, 6 1, 2, 6, 11
Central rotary joint
6 6 6
Slewing motor
1, 6 1, 6 1, 6
Turntable pin
1, 2, 3 1, 2, 3 1, 2, 3
Turntable cover assembly
1, 2, 3 1, 2, 3 1, 2, 3
Hydraulic generator (if equipped)
1, 3, 6, 10
NO.1
1, 3, 6, 10
NO.1
1, 3, 6, 10
NO.1
Boom assembly
Boom weldment
1, 2 1, 2 1, 2
Hose, wire rope bracket
1, 2 1, 2 1, 2
Pulley and slide assembly
1, 2 1, 2 1, 2
Bearing
1, 2, 5, 12 1, 2, 5, 12 1, 2, 5, 12
Cover or protective guard (if
equipped)
1, 2 1, 2 1, 2
Cable track and wire rope system
1, 2, 3, 5 1, 2, 3, 5 1, 2, 3, 5
Pivot pin and retaining ring
1, 2 1, 2 1, 2
Platform assembly
Guardrail 2 2 2
Access gate
1, 2, 3 1, 2, 3 1, 2, 3
Floor 2 2 2
Swing cylinder
1, 2, 5, 6 1, 2, 5, 6 1, 2, 5, 6
Safety belt lashing point
1, 2, 7 1, 2, 7 1, 2, 7
Power system
Engine idle speed, RPM and throttle
valve
1, 3 1, 3 1, 3
Fuel oil 6 6 6
Engine oil
6
6, 11 6, 11
Cooling system
1, 2, 5, 6, 7 1, 2, 5, 6, 7 1, 2, 5, 6, 7, 11
Fuel filter
1, 5 1, 5, 11 1, 5, 11
Air filter
1, 6, 11 1, 6, 11 1, 5, 6, 11