20-25
®
HYDRAULIC FLANGE PORTS
Dash
Size
Flange
Size
Inch Bolt
(J518)
Torque
ft. lbs.
Metric Bolt
(ISO 6162)
Torque
N-m
8
1/2
5/16-18
17 ± 2
M8
25
12
3/4
3/8-16
25 ± 4.5
M10
49
16
1
3/8-16
31 ± 4.5
M10
49
20
1-1/4
7/16-14
41 ± 5
M12*
85
24
1-1/2
1/2-13
52 ± 6
M12
85
32
2
1/2-13
60 ± 6
M12*
135
40
2-1/2
1/2-13
85 ± 9
M12
95
48
3
5/8-11
144 ± 15
M16
220
56
3-1/2
5/8-11
125 ± 8
M16
220
64
4
5/8-11
125 ± 8
M16
220
80
5
5/8-11
125 ± 8
M16
220
Dash
Size
Flange
Size
Inch Bolt
(J518)
Torque
ft. lbs.
Metric Bolt
(ISO 6162)
Torque
N-m
8
1/2
5/16-18
17 ± 2
M8
25
12
3/4
3/8-16
30 ± 4.5
M10
49
16
1
7/16-14
46 ± 4.5
M12
85
20
1-1/4
1/2-13
69 ± 6
M14*
135
24
1-1/2
5/8-11
125 ± 8
M16
210
32
2
3/4-10
208 ± 20
M20
425
Bolts
Flange
Clamp
Flange Head
O-Ring
Tapped Holes
Washers
Ÿ
ISO 6162, Type 2
Ÿ
SAE Code 62 4-bolt split flange
Ÿ
ISO 6164
The 4-Bolt Split Flange consists of four main
components (Fig-1):
Ÿ
An O-ring
Ÿ
SAE Code 61 4-bolt split flange
There are two types of flange port connections:
Ÿ
One “captive” or two “split” flange clamps
Ÿ
A body (flange head)
Ÿ
Four bolts and washer
Fig-1
1 FLANGE PORT ASSEMBLY
6.
4.
5
2.
3.
1.
Position flange and clamp halves.
Place lock washers on bolts and insert
through clamp halves.
Hand tighten bolts.
Torque bolts in diagonal sequence
(see Fig-
2)
in small increments to the appropriate
torque level listed in
Tab-1
or
Tab-2
.
Inspect components to ensure that male
and female port threads and sealing
surfaces are free of burrs, nicks and
scratches, or any foreign material.
Lubricate the O-ring.
Tab-1 - Code 61 Flange
Tab-2 - Code 62 Flange
Fig-2
* Does not meet ISO 6162 specification.
Large threaded port connections, such as SAE straight thread, require very high torque to
assemble.
This makes assembly very difficult, especially where wrench clearance is limited. Split
flange connections solve this problem by dividing the hydraulic load among four bolts each requiring much
less torque, smaller wrenches and smaller wrench clearance.
05/30/2019
Updated
SERVICE
Summary of Contents for 830B
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