Sinoboom GTBZ26, Руководство по обслуживанию

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GTBZ26&28J Service Manual
15
Removal and Installation of Parts
1. When mechanical assistance is required,
please use adjustable lifting device as far
as possible. All lifting tools (chains and
slings) must be parallel to one another
and vertical to the top of the lifted part as
far as possible.
2. To remove parts at a corner, please keep
in mind that bearing capacity of eyebolt
or similar bracket will lower when the
angle between support structure and part
is less than 90°.
3. If a part is hard to remove, please check
whether all nuts, bolts, cables, trays and
wirings are all removed and whether any
neighboring parts obstruct their removal.
Removal and Reinstallation of Parts
To remove or reinstall a part, please complete
each step in order. Please do not start
operation of another part before removal or
installation of a part is completed. Please
always double check your work to make sure
nothing is omitted. No adjustment can be
performed before appropriate approval is
obtained (except recommended adjustment).
Press-fit part
Please lubricate the meshing surface with
anti-sticking or molybdenum disulfide
compound before assembly of press-fit parts.
Bearing
1. The bearing removed must be covered to
avoid attachment of contaminant or
abrasive material. The bearing shall be
washed in incombustible cleaning agent
and dried. It can be cleaned with
compressed air but cannot be rotated.
2. Please scrap the bearing in case of dent,
scratch, or burn of bearing race and steel
ball (or roller).
3. If the bearing is repairable, it shall be
wrapped with clean paper (or wax paper)
after application of a layer of oil. Please
do not unpack reusable bearing or new
bearing before installation.
4. Please lubricate new bearing or
overhauled bearing before installation.
Please press the bearing into the holder or
inner hole. Please exert pressure to
outside bearing race. To install the
bearing onto the shaft, please exert
pressure to the inner race.
Washer
Check whether the hole on the washer can
align with opening of the accessory. To
fabricate the washer manually, use washer
material or inventory material with equivalent
material and thickness Please make sure
opening is made at a correct position;
otherwise, sealing failure of the washer may
cause severe destruction of the system.
Use of Bolts and Application of Torque
1. Please use bolts of proper length. If the
bolts are too long, the bolts can touch the
bottom before their heads are fastened
onto relevant parts. If the bolts are too
short, there will be inadequate thread part
for meshing and fixation of parts. During
replacement of the bolts, bolts in the
same or equivalent specification as the
original bolts can be used only.
2. In addition to torque requirements
specified in the instruction, standard
torque values shall be used for bolts,
studs and steel bolts after thermal
treatment according to the recommended
factory practices (refer to torque table in
Chapter 1).
Hydraulic Pipeline and Electrical Wiring
While unplugging or removing hydraulic
pipelines or electrical wires from the
equipment, the hydraulic pipelines and
electrical wires and their sockets shall be