Torque Chart - Metric Bolts; Pressure Setting Chart - WEDGELOCK I-LOCK MINI COUPLER Installation Manual

SECTION 9: TORQUE CHARTS
9.0 TORQUE CHART – METRIC BOLTS
The following chart gives the standard torque setting of the bolts used in this hydraulic kit installation.
It is important to follow the chart when installing bolts and nuts. Failure to do so could result in
premature failure, damage to components, or even serious injury. (Fig 8.0.1)
Bolt Dia x Pitch (mm)
Fig 9.0.1 Torque Setting of Metric Grade 8.8 Bolts & Nuts
9.1 TORQUE CHART – JIC CONNECTIONS
JIC (SAE 37º Flare) Connections are a very common connection in fluid power applications. Both
the male and female fittings have a 37º seat. The seal takes place between the male flare and the
female cone seat. The thread holds the connection mechanically.
Nominal Size
1/4"
3/8"
1/2"
Fig 9.1.1 JIC Connections Chart

9.2 PRESSURE SETTING CHART

The following chart shows the range of allowable pressure settings for the I-Lock Coupler circuit.
It is highly recommended that the pressures for each function are tested and checked
before the equipment is put to use.
Marking
P
T
RET
EXT
SAFETY
Marking
RET
EXT
SAFETY
20
Torque Setting of Metric Grade 8.8 Bolts & Nuts
M6 x 1.0
M8 x 1.25
M10 x 1.5
M12 x 1.75
M14 x 2.0
M16 x 2.0
M18 x 2.5
M20 x 2.5
Note: 1Nm = 0.102kgm = 0.737 lb.ft
Torque Setting of JIC Connectors
Dash Size
-4
-6
-8
I-Lock Control Valve
Function
Pressure In
Tank return
Retract Primary Wedge
Extend Primary Wedge
Safety Knuckle Release
I-Lock Primary Cylinder
Function
Retract Primary Wedge
Extend Primary Wedge
Safety Knuckle Release
Nm
9.9
24.0
48.0
83.0
132.0
200.0
275.00
390.0
Nm Lb.Ft
15 - 17 10.8 - 12.5
27 - 30 19.6 - 22.0
59 - 65 45.5 - 47.8
Pressure Range (bar)
Full Mains (260 bar max)
138-145
Full Mains (260 bar max)
Pressure Range (bar)
Full Mains (260 bar max)
138-145
Full Mains (260 bar max)
NORTH AMERICA
Lb.Ft
7.3
17.7
35.4
61.2
97.3
147.4
202.7
287.4
F.F.F.T.
2
1 1/4
1
Pressure Range (psi)
Full Mains
N/A
Full mains 3750 psi max
2000-2100
Full mains 3750 psi max
Pressure Range (psi)
Full mains 3750 psi max
2000-2100
Full mains 3750 psi max