7 STEERING
TIGHTENING TORQUES
82410 • 82710 • 82910 WSM, 12271
Tightening torques of screws, bolts and nuts on the table below are especially specified.
(For general use screws, bolts and
nuts:
See page G-9.)
Item
N·m
kgf·m
ft-Ibs
Pitman arm mounting nut
117.7 to
147.1
12.0 to 15.0 86.8 to 108
Oil cooler pipe nut
50 to
58
5.1
to 5.9
36.9 to 42.8
Power steering assembly mounting screw
77.5 to
90.1
7.9 to 9.2
57.2 to 66.5
Power steering delivery pipe nut
65.0 to 75.0
6.6 to 7.7 47.9 to 55.3
Steering wheel mounting nut
29.4 to 49.0
3.0 to 5.0 21.7 to 36.2
Steering column mounting screw
17.7 to 20.6
1.8 to
2.1
13.1
to
15.1
Valve housing mounting hex head screw
39.2 to 49.0
4.0 to 5.0
28.9 to 36.2
Side cover mounting screw
19.6 to 29.4
2.0 to 3.0
14.5 to 21.7
Relief pressure adjusting screw lock nut
49.1
to 78.5
5.0 to 8.0
36.2 to 57.8
Plug
8.8 to 10.8
0.9 to
1.1
6.5 to 8.0
12270870040
CHECKING, DISASSEMBLING AND SERVICING
[1] HYDRAULIC PUMP
CHECKING AND ADJUSTING
Flowmeter Connecting
and
Test
Preparation
• IMPORTANT
• When
using
a
flowmeter
other
than
KUBOTA
specified
flowmeter
(Code No: 07916-52792), be
sure
to
use
the
instructions
with
that
flowmeter.
• In
this
hook-up, there
is
no
relief valve.
Therefore
while
testing,
do
not
close
the
flowmeter
loading
valve completely.
1.
Remove the steering wheel, meter panel and panel under cover.
2.
Remove the power steering delivery pipe and pipe joint of
IN
port
of power steering body.
3.
Set the adaptor 66 (2) to the hydraulic pump (3).
4.
Install the adaptor 69 (5) to the
IN
port of power steering body.
5.
Connect the hydraulic test hose
(1)
(Code No: 07916-52651) to
the adaptor 66 and flowmeter (code No: 07916-52791) inlet port.
6.
Connect the another hydraulic test hose
(4)
to flowmeter outlet
port and
IN
port of power steering body.
7.
Open the flowmeter loading valve completely. (Turn
counterclockwise)
8.
Start the engine and set the engine speed at 2600 rpm.
9.
Slowly close the loading valve to generate the pressure approx.
12.3 MPa (125 kgf/cm
2
,
1778 psi).
10. Hold
in
this condition until oil temperature reaches approx.
50°C
(122
OF).
(Reference)
• Adaptor
is
included
in
the adaptor set (Code No: 07916-54031).
(1) Hydraulic Test Hose
(2) Adaptor 66
(3)
Hydraulic Pump
7-S4
(4)
Hydraulic Test Hose
(5)
Adaptor 69
12270870050
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