Torque Specifications - Blizzard 810SS Assembly & Operation Manual

Grade Identification Marking for J429-Grade 5 Bolt
Nominal
Clamp Loads
Thread Size
(lbs)
1/4-20 2,000
5/16-18 3,350
3/8-16 4,950
7/16-14 6,800
1/2-13 9,050
9/16-12 11,600
5/8-11 14,500
3/4-10 21,300
7/8-9 29,435
1-8 38,600
Grade Identification Marking for Metric-Grade 8.8 Bolt
Diameter
Clamp Loads
(mm)
(Pounds)
5 1,389
6 1,965
7 2,826
8 3,579
10 5,672
12 8,243
14 11,246
16 15,882
18 19,423
20 24,784
37° JIC Flare Torque Values
Ft-lbs
Turns Size
min.max
N/A -02 6-7
N/A -03 8-9
2 -04 11-12
2 -05 14-15
1-1/2 -06 18-20
1-1/2 -08 36-39
1-1/2 -10 57-63
1-1/4 -12 79-88
1 -14 94-103
1 -16 108-113
1 -20 127-133
1 -24 158-167
1 -32 245-258
SAE J429 – Grade 5
Tightening Torque
"Lubricated" "Dry"
6 ft-lbs 8 ft-lbs
13 ft-lbs 18 ft-lbs
23 ft-lbs 31 ft-lbs
37 ft-lbs 50 ft-lbs
57 ft-lbs 75 ft-lbs
82 ft-lbs 109 ft-lbs
113 ft-lbs 151 ft-lbs
200 ft-lbs 266 ft-lbs
321 ft-lbs 430 ft-lbs
482 ft-lbs 640 ft-lbs
Metric Class 8.8
Tightening Torque
"Lubricated" "Dry"
3 ft-lbs 5 ft-lbs
6 ft-lbs 8 ft-lbs
10 ft-lbs 13 ft-lbs
14 ft-lbs 19 ft-lbs
28 ft-lbs 37 ft-lbs
49 ft-lbs 65 ft-lbs
77 ft-lbs 103 ft-lbs
125 ft-lbs 167 ft-lbs
172 ft-lbs 229 ft-lbs
244 ft-lbs 325 ft-lbs
Assembly steps
1. Make sure the tubing and threads are
clean.
2. Lubricate the threads with 10W hydraulic
oil.
3. Hand tighten the nut/sleeve to approx. 30
in-lbs.
4. Make alignment marks on the nut and
fitting.
5. Tighten to turn or torque specification.
nd
6. When fully tightened, make a 2 set of
alignment marks at the fully tighten
positioned.
NOTE: Torque values specified are for
threads lubricated with 10W hydraulic oil.
Over tightening will reduce the clamping force
resulting in loss of seal and reduction of flow.

TORQUE SPECIFICATIONS

Grade Identification Marking for J429-Grade 8 Bolt
Nominal
Clamp Loads
Thread Size
(lbs)
1/4-20 2,850
5/16-18 4,700
3/8-16 6,950
7/16-14 9,600
1/2-13 12,800
9/16-12 16,400
5/8-11 20,300
3/4-10 30,100
7/8-9 41,550
1-8 54,540
Grade Identification Marking for Metric-Grade 10.9 Bolt
Diameter
Clamp Loads
(mm)
(Pounds)
5 1,987
6 2,812
7 4,044
8 5,121
10 8,116
12 11,796
14 16,092
16 21,970
18 26,868
20 34,284
O-Ring Boss Torque Values
Ft-lbs
Size Assembly steps
min.max
-02 6-7 1. Verify the port, o-ring, sealing surfaces and threads
are clean and free of damage.
-03 8-10
2. Lubricate the threads and the o-ring with 10W
-04 13-15
hydraulic oil.
3. For an adjustable O.R.B., completely back off the lock
-05 17-21
nut and washer.
-06 22-25
4. Hand tighten the fitting until it contacts the port
spotface. Point the elbow or tee in the desired
-08 40-43
direction and hold.
-10 43-57
5. Torque to specification.
-12 68-75
NOTE: Torque values specified are for threads lubricated
-14 90-99
with 10W hydraulic oil.
-16 112-123
-20 146-200
-24 154-215
-32 218-290
64060 (2005-810&8611SkidSteer).doc
SAE J429 – Grade 8
Tightening Torque
"Lubricated" "Dry"
9 ft-lbs 12 ft-lbs
18 ft-lbs 25 ft-lbs
32 ft-lbs 44 ft-lbs
53 ft-lbs 70 ft-lbs
80 ft-lbs 107 ft-lbs
115 ft-lbs 154 ft-lbs
159 ft-lbs 211 ft-lbs
282 ft-lbs 376 ft-lbs
454 ft-lbs 606 ft-lbs
680 ft-lbs 900 ft-lbs
Metric Class 10.9
Tightening Torque
"Lubricated" "Dry"
5 ft-lbs 7 ft-lbs
8 ft-lbs 11 ft-lbs
14 ft-lbs 19 ft-lbs
20 ft-lbs 27 ft-lbs
40 ft-lbs 53 ft-lbs
70 ft-lbs 92 ft-lbs
111 ft-lbs 148 ft-lbs
173 ft-lbs 231 ft-lbs
238 ft-lbs 317 ft-lbs
338 ft-lbs 450 ft-lbs
7