Tadano GR-700N User manual

Foreword
1
WA04-4651E
Foreword
This service manual describes the composition of the Model GR-700N-1 rough terrain crane, its adjustment
methods and hydraulic and electric circuit diagrams.
This service manual applies to the cranes with the specification numbers given below. Check the specification
number on the nameplate of your crane.
Read the separate operation and maintenance manual and the parts catalog for repair and maintenance of the
crane in conjunction with this manual. If the parts needs to be replaced, check the disassemble units and sales
units in the parts catalog before replacing them.
1. Applicable spec. and serial number
Spec. No. Applicable serial number
GR-700N-1-00101
FE0376--
GR-700N-1-00121
GR-700N-1-00122
Separate service manual
Separate Service Manual Publication No.
1 General Cautions WA01-0121E
2 Automatic Moment Limiter (AML-C) W301-0481E
3 Data Transmitter (DCU2 and VCU) W303-0681E
Please note that, for product improvement, some changes which are not
covered in this manual may have been incorporated in the machine.
And please note that this manual may cover the functions and equipment
which are not equipped with your machine.
Please check your actual machine for repair and maintenance.

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WA04-4651E
2. External view
The following is the traveling posture.
Front, rear, right, and left are the directions viewed from a position when operator sits on operator's seat with the
boom directed to the front of the frame. Those directions remain invariant regardless of slewing direction of the
superstructure.

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WA04-4651E
3. Outline of specifications
No. Item
Spec. No.
GR-700N-1
-00101
GR-700N-1
-00121
GR-700N-1
-00122
1 No. of boom sections 6
2 No. of jib stages 3
3 Single top Fitted
4 Winch
Main winch Fitted
Auxiliary winch Fitted
Winch high-speed hoisting down Fitted
Winch brake Automatic brake (Neutral brake)
5 Outrigger H-type
6 Automatic moment limiter (AML) AML-C
7 Auto. stop solenoid valve energizing type Normally energized
8 Anti-two-block device Fitted
9 Oil cooler Fitted
10 Air conditioner Fitted
11 Telematics Fitted
12 Eco mode system, Fuel consumption monitor Fitted
13 Emergency steering system Fitted
14 Engine model Cummins QSL9-4A
15 Tires 385/95 R25

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WA04-4651E
4. Conversion table
Length
millimeter
mm
centimeter
cm
meter
m
inch
in, ”
foot
ft, ’
mile
mi
kilometer
km
1 1×10
-1
1×10
-3
3.93701×10
-2
3.28084×10
-3
1 1.60934
1×10 1 1×10
-2
3.93701×10
-1
3.28084×10
-2
6.21373×10
-1
1
1×10
3
1×10
2
1 3.93701×10 3.28084
2.54×10 2.54 2.54×10
-2
1 8.33333×10
-2
3.048×10
2
3.048×10 3.048×10
-1
1.2×10 1
Speed
km/h mile/h, mph
1 6.21373×10
-1
1.60934 1
Area
square millimeter
mm
2
square centimeter
cm
2
square meter
m
2
square inch
in
2
square foot
ft
2
1 1×10
-2
1×10
-6
1.55×10
-3
1.07639×10
-5
1×10
2
1 1×10
-4
1.55×10
-1
1.07639×10
-3
1×10
6
1×10
4
1 1.55×10
3
1.07639×10
6.4516×10
2
6.4516 6.4516×10
-4
1 6.94444×10
-3
9.2903×10
4
9.2903×10
2
9.2903×10
-2
1.44×10
2
1
Volume
cubic centimeter
cm
3
, cc
liter
lit, L
cubic meter
m
3
cubic inch
in
3
cubic foot
ft
3
gallon (US)
gal
1 1×10
-3
1×10
-6
6.10237×10
-2
3.53147×10
-5
2.64172×10
-4
1×10
3
1 1×10
-3
6.10237×10 3.53147×10
-2
2.64172×10
-1
1×10
6
1×10
3
1 6.10237×10
4
3.53147×10 2.64172×10
2
1.63871×10 1.63870×10
-2
1.63871×10
-5
1 5.78704×10
-4
4.329004×10
-3
2.83168×10
4
2.83168×10 2.83168×10
-2
1.728×10
3
1 7.48051
3.78541×10
3
3.78541 3.78541×10
-3
2.31×10
2
1.33680×10
-1
1
Force
N kgf lbf
1 1.01972×10
-1
2.24809×10
-1
9.80665 1 2.20462
4.44822 4.53592×10
-1
1

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WA04-4651E
Mass
gram
g
kilogram
kg
ounce
oz
pound
lb
metric ton
t
short ton
s. t
1 1×10
-3
3.5274×10
-2
2.20462×10
-3
1×10
-6
1.10231×10
-6
1×10
3
1 3.5274×10 2.20462 1×10
-3
1.10231×10
-3
2.83495×10 2.8349×10
-2
1 6.25×10
-2
2.83495×10
-5
3.12494×10
-5
4.53592×10
2
4.53592×10
-1
1.6×10 1 4.53592×10
-4
5×10
-4
1×10
6
1×10
3
3.5274×10
4
2.20462×10
3
1 1.10231
9.07185×10
5
9.07185×10
2
3.2×10
4
2×10
3
9.07185×10
-1
1
Pressure
pascal
Pa
kPa MPa kgf/cm2lbf/in2, psi bar
1 1×10
-3
1×10
-6
1.01972×10
-5
1.45038×10
-4
1×10
-5
1×10
3
1 1×10
-3
1.01972×10
-2
1.45038×10
-1
1×10
-2
1×10
6
1×10
3
1 1.01972×10 1.45038×10
2
10
9.80665×10
4
9.80665×10 9.80665×10
-2
1 1.42233×10 9.80665×10
-1
6.89476×10
3
6.89476 6.89476×10
-3
7.03072×10
-2
1 6.89475×10
-2
1×10
5
1×10
2
1×10
-1
1.01972 1.45038×10 1
Torque
N-cm N-m kgf-cm kgf-m
foot-pound
ft-lbf
inch-pound
in-lbf
1 1×10
-2
1.01972×10
-1
1.01972×10
-3
7.37562×10
-3
8.85074×10
-2
1×10
2
1 1.01972×10 1.01972×10
-1
7.37562×10
-1
8.85074
9.80665 9.80665×10
-2
1 1×10
-2
7.23301×10
-2
8.67961×10
-1
9.80665×10
2
9.80665 1×10
2
1 7.23301 8.67961×10
1.35582×10
2
1.35582 1.38255×10 1.38255×10
-1
1 1.2×10
1.12985×10 1.12985×10
-1
1.152513 1.15213×10
-2
8.33333×10
-2
1
Power
watt
W
kW PS
1 1×10
-3
1.35962×10
-3
1×10
3
1 1.35962
7.355×10
2
7.355×10
-1
1
Centigrade-Fahrenheit
°F °C °F °C °F °C °F °C °F °C °F °C
-90 -67.78 -40 -40 10 -12.22 60 15.56 110 43.33 160 71.11
-80 -62.22 -30 -34.44 20 -6.67 70 21.11 120 48.89 170 76.67
-70 -56.67 -20 -28.89 30 -1.11 80 26.67 130 54.44 180 82.22
-60 -51.11 -10 -23.33 40 4.44 90 32.22 140 60 190 87.78
-50 -45.56 0 -17.78 50 10 100 37.78 150 65.56 200 93.33
Conversion equation: t [
°
C] = 5 (T [
°
F] -32) / 9, T [
°
F] = (9 × t [
°
C] + 160) / 5

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WA04-4651E
5. Drawing method of illustrations in this service manual
The third angle projection method of mechanical drawing is used for the illustrations in this service manual.
The third angle projection method is generally composed of the front view (the figure viewed from the front:
A), top view (the figure viewed from the top: B), and right-side view (the figure viewed from the right: C) as
shown below. Draw the top view immediately above the front view, and draw the right-side view on the right
side of the front view. Tridimensional shape can generally be drawn with the figures viewed from 3 directions.
For those which cannot be drawn with the figures viewed from 3 directions, the additional figures, such as
left-side view (the figure viewed from the left: D), back view (the figure viewed from the back: E), or bottom
view (the figure viewed from the bottom: F) may be used.
For other cases, when individual detailed drawing is required, an arrow view, sectional view, or detail drawing
may be used separately.
A: Front view
B: Top view
C: Right
-side view
D: Left
-side view
E: Back view
F: Bottom view

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6. Group index
System Diagrams
Data, Adjustment and Checks
Y
Z
Y
Z

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WA04-4651E
7. Contents
Chapter
Section
Spec. No.
GR-700N-1
-00101
GR-700N-1
-00121
GR-700N-1
-00122
Data, Adjustment and Checks
Y
Service Data Y-1
Adjusting pressure
Hydraulic Pressure Y-2
Pneumatic Pressure Y-3
Air Bleeding Procedure Y-4
Adjusting procedure Electric Y-5
Assembly Adjustment
Crane Operation Y-6
Traveling Device Y-7
Operation Check
Crane Operation Y-8
Traveling Device Y-9
Inspection and Maintenance Y-10
System Diagrams
Z
Hydraulic Circuit Z-1
Torque Converter Circuit Z-2
Pneumatic Circuit Z-3
Electric Circuit
Upper Z-4
Lower Z-5
Hydraulic Parts Location
Diagram
Upper Z-6
Lower Z-7
Torque Converter Z-8
Pneumatic Parts Location Diagram Z-9
Electric Parts Location
Diagram
Upper Z-10
Lower Z-11
Harness
Upper Z-12
Lower Z-13
View System Z-14

i
Y
Data, Adjustment and Checks
Contents
Y-1 Service Data .....................................1
1. Amounts of oil and coolant........................ 1
2. Operating speed ....................................... 1
3. Hydraulic device ....................................... 2
3.1 Hydraulic pump .......................................... 2
3.2 Hydraulic motor .......................................... 2
3.3 Hydraulic cylinder ....................................... 3
4. Slewing section......................................... 5
5. Boom section............................................ 5
5.1 Boom slide plate ......................................... 5
5.2 Jib slide plate.............................................. 6
5.3 Boom bending and deformation ................. 7
5.4 Jib bending and deformation ...................... 8
5.5 Wire rope .................................................... 9
5.6 Sheave ..................................................... 10
5.7 Inspection of the hook block..................... 10
6. Criteria for maintenance and replacement
of vehicle ..................................... 11
6.1 Power transmission device....................... 11
6.2 Braking device .......................................... 11
6.3 Steering device......................................... 12
7. Mass table .............................................. 13
Y-2 Adjusting Pressure
(Hydraulic Pressure)..............14
1. Location (position of relief valve etc.) ...... 14
2. Items .................................................... 15
2.1 Winch ........................................................15
2.2 Telescoping...............................................16
2.3 Elevating ...................................................17
2.4 Slewing......................................................18
2.5 Outrigger ...................................................19
2.6 Remote control pilot pressure...................20
2.7 Steering.....................................................21
2.8 Torque converter oil pressure...................21
2.9 Jib tilt and jib telescoping ..........................22
2.10 Suspension lock........................................23
Y-3 Adjusting Pressure
(Pneumatic Pressure)............24
Y