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S
ectio
n 6 0
HY
DRAULIC SYSTEM
Group 5
GENER AL INFO RMATION
TABLE
OF
CONTENTS
GROUP
5 -
GENERAL
INFORMATION
Principle
of
Operation
..
.
Adding
Lubricant
......
.
Syst
em
Analysis
......
.
Oil
L aka
ge
........
.
Loss
of
Hydraulic
Pressure
..
Erratic
Lift
Operation
. .
..
. .
Testin
g
...........
.
Pressure
Gauge
....
.
Hydraulic
Test
Unit.
..
Dia
g
nosin
g
Malfunctions.
GROUP
10
-
CONTROL
VALVE
General
Information
......
. .
Rep
a
ir
......
.
.....
.
...
.
Removing
Valve
from
Tractor
.
Removing
Valve
Assembly
from
Pulnp
..........
.
....
.
Disassembling
Valve
.......
.
Inspection
..
. . .
.......
.
...
.
Valve
Housing
...
..
.......
.
Spool,
Plunger
and
Springs
...
. .
Assembly
.
..............
..
.
Installing
O-Rings
in
Valve
Body
..
Installing
Lift
Che
ck
Plug
..
"
..
.
Installing
Spool
............
.
Installing
Valve
Ass
e
mbly
on
Pump
Installing
on
Tractor
.........
.
5-2
5-3
5-4
5-4
5-4
5-4
5-5
5-5
5-5
5-6
10-1
10-1
10-2
10-2
10-2
10-4
10-4
10-4
10-4
10-4
10-4
10-5
10-6
10-6
Torque
for
Hardwar
e .
Special
Tools
...
GROUP
15 -
PUMP
General
Information.
Repair
......
.
....
.
........
.
Rem
o
ving
Pump
from
Tractor
...
.
Installing
Baffl
e
Plate
..
.
Separating
Pump
......
.
Inspection
.
.....
. .
Assembly
........
.
Adjustments
......
.
Drive
Belt
Tension.
Relief
Valve
Pr
e
ssure
.....
.
Lift
Lever
S
top
.
Direction
of
Lift
.
....
.
Specifications
. .
...
.
T o
rque
for
Hardware
.
Special
Tools
....
GROUP
20
-
CYLINDER
General
Information
.
Removal
. . .
Installation
. .
Spec
ifica
tions
.
10-7
10-7
15- 1
15-2
15-
3
15-
3
15-
3
15-4
15-5
15-8
15-8
15-8
15-9
15
-9
15-10
15-10
15-10
20-1
20-2
20-2
20-2
Litho
in
U.S.
A.