T
echnical
M
anual
hD8625 8-
5
/
8
” 35K T
ong
3.11
M
ainTenance
ALL FASTENERS USED DURING REASSEMBLY OF LOAD-BEARING COMPONENTS (CHAIN
SLINGS, RIGID SLINGS, BACKUP LEGS) MUST BE TIGHTENED TO THE CORRECT TORQUE.
THREADED FASTENERS USED IN LOAD-BEARING DEVICES MUST BE SECURED WITH RED LOC-
TITE™.
I.
ASSEMBLY PROCEDURES
Assembly of Farr Hydraulic Power Tongs is simple, and can be accomplished without the use of special tools. The instructions on this
page are presented as a guide only, and are similar to the assembly sequence our technician would use while assembling the tong in
our plant.
NOTE ON INSTALLATION PRACTICES: Ensure all bearings are liberally greased before installing over a shaft or into gears or
bearing caps. When inserting a shaft through a support roller assembly ensure shaft is greased. Also ensure all metal-to-metal
contact in the gear train is adequately greased.
When graphics are not used in the assembly process, please refer to the relevant
exploded diagrams in Section 5.
TIGHTENING TORQUE GUIDE
SAE GRADE 8 - FINE THREAD
SIZE
CLAMP LOAD
PLAIN
PLATED
1/4 - 28 (.250)
3,263
14 ft. lbs.
10 ft. lbs.
5/16- 24 (.3125)
5,113
27 ft. lbs.
20 ft. lbs.
3/8 - 24 (.375)
7,875
49 ft. lbs.
37 ft. lbs.
7/16 - 20 (.4375)
10,650
78 ft. lbs.
58 ft. lbs.
1/2 - 20 (.500)
14,400
120 ft. lbs.
90 ft. lbs.
9/16 - 18 (.5625)
18,300
172 ft. lbs.
129 ft. lbs.
5/8” - 18 (.625)
23,025
240 ft. lbs.
180 ft. lbs.
3/4 - 16 (.750)
33,600
420 ft. lbs.
315 ft. lbs.
7/8” - 14 (.875)
45,825
668 ft. lbs.
501 ft. lbs.
1 - 12 (1.000)
59,700
995 ft. lbs.
746 ft. lbs.
1 - 14 (1.000)
61,125
1019 ft. lbs.
764 ft. lbs.
1 1/8 - 12 (1.125)
77,025
1444 ft. lbs.
1083 ft. lbs.
1 1/4 - 12 (1.125)
96,600
2012 ft. lbs.
1509 ft. lbs.
1 3/8 - 12 (1.375)
118,350
2712 ft. lbs.
2034 ft. lbs.
1 1/2 - 12 (1.500)
142,275
3557 ft. lbs.
2668 ft. lbs.
SAE GRADE 8 - COARSE THREAD
SIZE
CLAMP LOAD
PLAIN
PLATED
1/4 - 20 (.250)
2,850
12 ft. lbs.
9 ft. lbs.
5/16- 18 (.3125)
4,725
25 ft. lbs.
18 ft. lbs.
3/8 - 16 (.375)
6,975
44 ft. lbs.
33 ft. lbs.
7/16 - 14 (.4375)
9,600
70 ft. lbs.
52 ft. lbs.
1/2 - 13 (.500)
12,750
106 ft. lbs.
80 ft. lbs.
9/16 - 12 (.5625)
16,350
153 ft. lbs.
115 ft. lbs.
5/8” - 11 (.625)
20,325
212 ft. lbs.
159 ft. lbs.
3/4 - 10 (.750)
30,075
376 ft. lbs.
282 ft. lbs.
7/8” - 9 (.875)
41,550
606 ft. lbs.
454 ft. lbs.
1 - 8 (1.000)
54,525
909 ft. lbs.
682 ft. lbs.
1 1/8 - 7 (1.125)
68,700
1288 ft. lbs.
966 ft. lbs.
1 1/4 - 7 (1.125)
87,225
1817 ft. lbs.
1363 ft. lbs.
1 3/8 - 6 (1.375)
103,950
2382 ft. lbs.
1787 ft. lbs.
1 1/2 - 6 (1.500)
126,450
3161 ft. lbs.
2371 ft. lbs.
REPLACEMENT FASTENER (BOLTS, NUTS, CAP SCREWS, MACHINE SCREWS, ETC.) USED
DURING MAINTENANCE OR OVERHAUL MUST BE GRADE 8 OR EQUIVALENT UNLESS OTHER-
WISE SPECIFIED.
Содержание HD8625
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Страница 83: ...Technical Manual HD8625 8 5 8 35K Tong 5 1 Parts and Assemblies HD8625 8 5 8 35K Tong ...
Страница 84: ...5 2 HD8625 8 5 8 35K Tong Technical Manual Gear Train Layout H B C D H J A K E F G ...
Страница 86: ...5 4 HD8625 8 5 8 35K Tong Technical Manual Support Roller A B D J C E H D E F G ...
Страница 88: ...5 6 HD8625 8 5 8 35K Tong Technical Manual Door Pivot Roller A B D J C E H D E F G ...
Страница 90: ...5 8 HD8625 8 5 8 35K Tong Technical Manual Rotary Idler Assembly A B C E B D F C D G G H J F ...
Страница 92: ...5 10 HD8625 8 5 8 35K Tong Technical Manual Pinion Idler Assembly A B C E L D F K G J G H ...
Страница 94: ...5 12 HD8625 8 5 8 35K Tong Technical Manual Pinion Assembly A B C E A D F B D G H E C ...
Страница 96: ...5 14 HD8625 8 5 8 35K Tong Technical Manual Clutch Assembly A B C D K T U V J L S P M N R E F G H K Q ...
Страница 98: ...5 16 HD8625 8 5 8 35K Tong Technical Manual Shifter Assembly A B C D E F G J H K L M N P Q R S ...
Страница 100: ...5 18 HD8625 8 5 8 35K Tong Technical Manual Rotary Assembly A B C D E F G H J K M N L T V P Q R S U ...
Страница 102: ...5 20 HD8625 8 5 8 35K Tong Technical Manual Tong Leg Weldments A C D E F H G J B ...
Страница 104: ...5 22 HD8625 8 5 8 35K Tong Technical Manual Hydraulic Supports A J B C D E C F G H N P F K L M ...
Страница 106: ...5 24 HD8625 8 5 8 35K Tong Technical Manual Motor Motor Mount A B C D E J F G H Q K P L M N ...
Страница 108: ...5 26 HD8625 8 5 8 35K Tong Technical Manual Brake Bands A B C D E F G H J ...
Страница 110: ...5 28 HD8625 8 5 8 35K Tong Technical Manual Door Assembly A C A B D E F M G H J K U Q R T V P B N W X S L ...
Страница 112: ...5 30 HD8625 8 5 8 35K Tong Technical Manual Safety Door Option A B C D K J R H N H M Q E F G H L P S ...
Страница 114: ...5 32 HD8625 8 5 8 35K Tong Technical Manual Rigid Sling Assembly A B C D E J K L Q P F G H N R M ...
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