Lull 944E-42 Service Manual - Manual (Page 22)

General Information and Specifications
2-10 944E-42
2.2.3 Hydraulic Hose Torque Chart
Note: By definition the “Flats Method“ will contain some
variance. Use the “Flats Method” only when accessibility
with a torque wrench is not possible.
Torque Wrench:
1. Identify the appropriate application and refer to the
above chart for the correct torque value.
2. If equipped, lubricate o-ring with hydraulic oil. Hand
tighten the swivel nut until no lateral movement of
the swivel nut can be detected. Average hand torque
is 3 lb-ft (4 Nm).
3. Use the double wrench method while tightening to
avoid hose twist.
4. Torque wrench must be held at the center of the grip.
Apply constant force until it clicks.
5. After the connection has been properly tightened,
mark a straight line across the connecting parts
indicating that the connection has been properly
tightened.
Flats Method:
1. If equipped, lubricate o-ring with hydraulic oil. Hand
tighten the swivel nut until no lateral movement of
the swivel nut can be detected. Average hand torque
is 3 lb-ft (4 Nm).
2. Mark a dot on one of the swivel nut flats and another
dot in line on the hex of the adapter it’s connecting
to.
3. Use the double wrench method while tightening to
avoid hose twist.
4. After the connection has been properly tightened,
mark a straight line across the connecting parts, not
covering the dots indicating that the connection has
been properly tightened.
O-Ring Face Seal & JIC Torque Chart
Size ORFS JIC Flats Method
4
13 lb-ft
(18 Nm)
13 lb-ft
(18 Nm)
1.5 to 1.75
6
23 lb-ft
(31 Nm)
23 lb-ft
(31 Nm)
1 to 1.5
8
40 lb-ft
(54 Nm)
40 lb-ft
(54 Nm)
1.5 to 1.75
10
60 lb-ft
(81 Nm)
60 lb-ft
(81 Nm)
1.5 to 1.75
12
74 lb-ft
(100 Nm)
85 lb-ft
(115 Nm)
1.0 to 1.5
16
115 lb-ft
(156 Nm)
115 lb-ft
(156 Nm)
0.75 to 1.0
20
170 lb-ft
(230 Nm)
170 lb-ft
(230 Nm)
0.75 to 1.0
24
200 lb-ft
(271 Nm)
200 lb-ft
(271 Nm)
0.75 to 1.0
32 N/A
270 lb-ft
(366 Nm)
0.75 to 1.0