MacDon Harvest Header D65 Assembly Instructions Manual page 8

O-RING FACE SEAL (ORFS)
HYDRAULIC FITTINGS
TUB
THD
SAE E
SIZE
NO. O.D.
(in.)
(in.)
3 *** 3/16
4 9/16 1/4
5 *** 5/16
6 11/16 3/8
8 13/16 1/2
10 1 5/8
12 1-3/16 3/4
14 1-3/16 7/8
16 1-7/16 1
20 1-11/16 1-1/4
24 2 1-1/2
32 2-1/2 2
* Torque values and angles shown are based on lubricated
connection, as in re-assembly.
** Always default to the torque value for evaluation of adequate
torque.
*** O-ring face seal type end not defined for this tube size.
169603
RECOMMENDED TORQUES
RECOMMENDED
TORQUE VALUE* TIGHTEN
TIGHTENING)**
Tube
ft·lbf N·m
Nuts
--- --- ---
11–12 14–16 1/4–1/2
--- --- ---
18–20 24–27
32–35 43–47
45–51 60–68
67–71 90–95
1/4–1/2
67–71 90–95
93–100 125–135
126–141 170–190
148–167 200–225
--- --- ---
a. Check components to ensure that the sealing
surfaces and fitting threads are free of burrs,
nicks, and scratches, or any foreign material.
b. Apply lubricant (typically Petroleum Jelly) to
O-ring and threads. If O-ring is not already
installed, install O-ring. Align the tube or hose
assembly.
c. Ensure that flat face of the mating flange
comes in full contact with O-ring.
d. Thread tube or hose nut until hand-tight. The
nut should turn freely until it is bottomed out.
Torque fitting further to the specified number
of F.F.F.T ("Flats From Finger Tight"), or to a
given torque value in the table shown in the
opposite column.
If available, always hold the hex on the
fitting body to prevent unwanted rotation
of fitting body and hose when tightening
the fitting nut.
e. When assembling unions or two hoses
together, three wrenches will be required.
TURNS TO
(AFTER
FINGER
Swivel &
Hose
---
1/2–3/4
---
1/2–3/4
1/3–1/2
---
8
NOTE
Revision B