Hydraulic Hose, Tube, And Fitting General Instructions; O-Ring Installation; Hydraulic Hose Installation - Jacobsen 62287 Service Manual

Hydraulic Hose, Tube, and
Fitting General Instructions

O-Ring Installation

• Always install new O-rings.
• On hoses with O-ring fittings, make sure O-rings are
properly seated before tightening.
• O-rings should be lubricated with the fluid to be used
in the system prior to assembly.
Boss Fitting O-Ring Installation
3
1 Tubing O.D. or Hose I.D.
O-Ring Seal Kits
• SAE Boss O-Ring Kit Jacobsen PN 5002452
• O-Ring Face Seal (ORS) O-Ring Kit PN 5002454
• Common O-Ring Sizes Kit PN 5002453
Replacement O-Rings for ORS (Face Seal)
Fittings
ORS (Face Seal) ORS (Face Seal)
Tube Size O-Ring Size
4
6
8
10
12
16
20
24
4247530-Rev A
1
2
TN4075
2 O-Ring 3 Thread Size
TN4097
Jacobsen
Part
Number
11 339908
12 339909
14 339910
16 339911
18 339912
21 339913
25 339914
29 339915
SPECIFICATIONS AND GENERAL INFORMATION
Replacement O-Rings for O-Ring Boss
Fittings
Tubing O.D.
or Hose I.D.
1/8
3/16
1/4
5/16
3/8
1/2
5/8
3/4
7/8
1
1-1/4
1-1/2
2

Hydraulic Hose Installation

Hold the fixed portion of the hose coupling with one
wrench; use a second wrench to tighten or loosen the
hose nut. This will avoid damaging the fitting seal. When
tightening a hose, do not permit the hose to twist; hold
the hose in a normal straight position.
When installing hoses, place fittings at angles to avoid
contact with fixed parts when turning. Make sure hoses
are assembled to proper "A" and "B" ports on
components.
Hydraulic Hose and Tube Torque Values
Size
Dash Fractional
-4 1/4
-6 3/8
-8 1/2
-10 5/8
-12 3/4
-16 1
-20 1-1/4
-24 1-1/2
Thread Jacobsen Part
Size Number
5/16-24 459290
3/8-24 459291
7/16-20 339896
1/2-20 459293
9/16-18 339897
3/4-16 339898
7/8-14 339899
1 1/16-12 339900
1-3/16-12 459296
1-5/16-12 339901
1-5/8-12 339902
1-7/8-12 339903
2-1/2-12 459300
lb-ft N·m
Min Max Min
10 12 14
18 20 24
32 40 43
46 56 60
65 80 90
92 105 125
125 140 170
150 180 200
2
Max
16
27
54
75
110
240
190
246
2-15