© Feb. 2023
60
TB20J Plus Operation Manual
MAINTENANCE
Refer to the Inspection and Preventative Mainte-
nance Schedule for items requiring this inspection. Re-
fer to the corresponding section of this manual to
perform the inspection and maintenance procedures.
Responsible Persons and Qualifica-
tions for Performing Inspection and
Maintenance
Table 10-7
Inspection
Type
Inspection Frequency
Primary
Responsible
Persons
Service Qualifications
Pre-operation
Inspection
Before each start of work, restart of
work and change of user, and after
each maintenance operation
User or operator
Properly trained user or
operator
Pre-delivery
Inspection
Before each sale, lease or rental
delivery
Owner, dealer or user
Qualified Sinoboom mechanic
Frequent
Inspection
In service for 3 months or 150 hours
(whichever comes first) or out of
service for more than 3 months
Owner, dealer or user
Qualified Sinoboom mechanic
Annual
Machine
Inspection
Once a year and no later than 13
months from the date of the prior
annual machine inspection
Owner, dealer or user
Factory-trained service
technician
Preventive
Maintenance
At intervals specified in the Inspec-
tion and Preventative Maintenance
Schedule
Owner, dealer or user
Qualified Sinoboom mechanic
Inspection and Preventative Mainte-
nance Schedule
Perform inspection and preventive maintenance for the
items in the table below at prescribed intervals. The in-
tervals of inspection and maintenance are calculated
based on the months elapsed since the machine has
been put into service or the “cumulative working time”
on the ground controller display (whichever comes first).
The inspection cycle is based on the use of machine
under normal working conditions, and the cycle should
be shortened accordingly if the machine is used in harsh
working conditions.
Table 10-8 Inspection and Preventative Maintenance Schedule
Items
Intervals
Before each
delivery
1
or
quarterly
2
Semiannually
3
Annually
4
Chassis assembly
Chassis 2 2 2
Tire
1, 2 1, 2 1, 2
Drive hub
1, 2
1，2，
1, 2
Tire fastener 1
50
1
50
1
50
Drive motor
1, 6 1, 6 1, 6
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