44
Checking
Item
Service required
Tools
Monthly
(180-200hrs
)
Trimonthly
(500 hrs)
Semiannually
(1000 hrs)
Annually
(2000hrs)
Check chain for tension
○
○
○
○
Lubrication of chains
○
○
○
○
Check chain and bearing for
damage or deformation
○
○
○
○
Check lifting cylinders for
proper operation and
connection
○
○
○
○
Check tilting cylinders for
proper operation and
connection
○
○
○
○
Check for forks and stopper
pins for damage or wear
○
○
○
○
Check fork base and hook
welding for defective cracks
or wear
○
○
○
○
Lifting
system
Check roller of mast and
lifting bracket parts for
cracks or damage
○
○
○
Table for bolt’s tight moment unit
:
N•m
Grade
Bolt’s
diameter
4.6
5.6 6.6 8.8
6 4
~
5 5
~
7 6
~
8 9
~
12
8 10
~
12 12
~
15 14
~
18 22
~
29
10 20
~
25 25
~
31 29
~
39 44
~
58
12 35
~
44 44
~
54 49
~
64 76
~
107
14 54
~
69 69
~
88 83
~
98 121
~
162
16 88
~
108 108
~
137 127
~
157 189
~
252
18 118
~
147 147
~
186 176
~
216 260
~
347
20 167
~
206 206
~
265 245
~
314 369
~
492
22 225
~
284 284
~
343 343
~
431 502
~
669
24 294
~
370 370
~
441 441
~
539 638
~
850
27 441
~
519 539
~
686 637
~
784 933
~
1244
Note
: ·Use entirely 8.8 grade bolt in the important joint position.
·Bolt’s grade can be found in the head of the table, if it can’t be found, the grade is 8.8.