6-13 SECTION 6. GENERAL REFERENCE99903514:TELESCOPIC CRANE: 20030115
TIGHTENING PROCEDURE:
1. Refer to the Torque Data Chart to determine the proper torque value to apply to the size of capscrew
used.
2. Follow the tightening sequence shown in the diagram. Note that the quantity of capscrews may differ
from the diagram, but the sequence must follow the criss-cross pattern as shown in the diagram.
3. Torque all capscrews to approximately 40% of the specified torque value, by following the sequence.
(EXAMPLE: .40 x 265 FT-LBS = 106 FT-LBS)
(EXAMPLE-METRIC: .40 x 36 KG-M = 14.4 KG-M)
4. Repeat Step 3, but torquing all capscrews to 75% of the specified torque value. Continue to follow the
tightening sequence.
(EXAMPLE: .75 x 265 FT-LBS = 199 FT-LBS)
(EXAMPLE-METRIC: .75 x 36 KG-M = 27 KG-M)
5. Using the proper sequence, torque all capscrews to the listed torque value as determined from the
Torque Data Chart.
TURNTABLE BEARING FASTENER TIGHTENING SEQUENCE
Refer to the diagram below for proper tightening/torquing sequence of the turntable bearing to the crane
base and crane mast. The total quantity of cap screws varies dependent on crane model.
WARNING
Number 1 can be assigned to
any capscrew if the sequence
remains the same in reference
to number 1.
3
7
11
15
19
23
1
5
9
13
17
21
4
8
12
16
20
24
2
6
10
14
18
22
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