MAINTENANCE
TB20J Plus Operation Manual
59
© Feb. 2023
9. Then tighten the nuts step by step in the order as
shown below. Please refer to the recommended tor-
que in the table below for tightening.
Fig 2 Diagram of wheel nuts tightening sequence
Table 10-6 Table of wheel nuts tightening torque
First step
Second step
Third step
150Nm
(110ft-lb)
240Nm
(177ft-lb)
300Nm
(221ft-lb)
10.4 INSPECTION AND PREVEN-
TATIVE MAINTENANCE
SCHEDULE
This section provides safety and other necessary infor-
mation for machine operators. For maximum service life
and safe operation of the machine, ensure that all nec-
essary inspection and maintenance works have been
completed before placing the machine into service.
It is quite important to establish and implement a com-
prehensive inspection and preventive maintenance
schedule. This manual outlines the frequent inspection
and maintenance works recommended by Hunan Sino-
boom Intelligent Co., Ltd. Consult your national, regional
or local regulations for aerial work platforms. The fre-
quency of the inspection and maintenance must be in-
creased as required by the environment, requirements
and frequency of usage.
Pre-delivery Inspection
The pre-delivery inspection shall be performed by quali-
fied Sinoboom equipment mechanics.
The pre-delivery inspection shall be performed before
each sale, lease or rental delivery.
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.
Pre-operation Inspection
Before each start of work, restart of work and change of
user, and after each maintenance operation, the pre-op-
eration inspection must be performed. Refer to the Pre-
operation Inspection section of the Operation Manual
for the detailed information. The Operation Manual must
be entirely read and understood before performing the
pre-operation inspection.
Frequent Inspection
The frequent inspection shall be performed by qualified
Sinoboom equipment mechanics.
The frequent inspection shall be performed for each ma-
chine in service for 3 months or 150 hours (whichever
comes first) or out of service for more than 3 months.
The frequency of this inspection must be increased as
required by the environment, requirements and fre-
quency of usage.
The items included in the frequent inspection are the
same as those in the pre-delivery inspection.
Annual Machine Inspection
An annual machine inspection must be performed once
a year and no later than 13 months from the date of the
prior annual machine inspection. Hunan Sinoboom Intel-
ligent Equipment Co., Ltd. recommends this task be per-
formed by a factory-trained service technician, a person
recognized by Sinoboom as one who, by possession of
a recognized degree, certificate and training, has suc-
cessfully demonstrated the ability and proficiency to
service, repair and maintain the subject Sinoboom prod-
uct model.
Refer to the Inspection and Preventive Maintenance
Schedule for items requiring this inspection, and refer
to the corresponding section of this manual to perform
inspection and maintenance procedures.
Preventive Maintenance
The preventive maintenance operation shall be per-
formed by qualified Sinoboom equipment mechanics.
The frequency of the inspection and maintenance must
be increased as required by the environment, require-
ments and frequency of usage.
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