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.
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