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308.708.8185 | [email protected] | Rev. 08/21
CHECKING HYDRAULIC FITTINGS
• Before connecting hydraulic fittings, check that fittings
are clean and undamaged. Replacement fittings and
hoses are available from W&A Manufacturing.
• Ensure O-ring(s) are installed properly as shown in the image.
(ORB fitting above, ORFS fitting below)
• “Wet Torque” fittings according to the chart below. Wet
Torque is the process of lubricating all threads, O-rings
and sealing surfaces with the hydraulic fluid used in the
system. Then tightening to a specified torque.
• Do not force fittings together. Ensure male and female
are of the same type and size, align sealing surfaces and
threads properly.
• Do not apply force to a connection or use the connection
as support. Doing so may damage components and/or
cause the connection to leak.
Torque lbft (Nm)
Dash Size
NPTF
ORB
JIC
ORFS
-4
12-16 (16-22)
10-15 (14-20)
11-13 (15-18)
10-12 (14-16)
-6
14-32 (19-43)
17-21 (23-28)
20-22 (27-30)
18-20 (24-27)
-8
32-40 (43-54)
30-35 (41-47)
43-47 (58-64)
32-35 (43-47)
-10
-
30-35 (41-47)
55-65 (75-88)
45-50 (61-68)
-12
40-48 (54-65)
30-35 (41-47) 80-90 (108-122)
65-70 (88-95)
HYDRAULIC FITTING TORQUE CHART
MAINTENANCE & LUBE
