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Takeuchi
Compact Excavator
TB53FR
Takeuchi TB53FR Workshop Manual
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MACHINE CONFIGURA
TION
CONTROL SYSTEM
III-23
TB53FR
CONTROL SYSTEM
Hydraulic Pilot Unit
A Type (ISO) – 1/2
♦
Table of Connections
♦
Pilot Valve
Control Valve
R1
↔
B1
R2
↔
A2
R3
↔
A1
R4
↔
A2
RP
↔
P
RT
↔
T
L1
↔
WB
L2
↔
B7
L3
↔
WC
L4
↔
WA
LP
↔
P1
LT
↔
T
B2
↔
B2
WA
↔
A7
Solenoid Valve
1.
Right Pilot Valve
2.
Left Pilot Valve
3.
Solenoid Valve
4.
Control Valve
5.
Hydraulic Tank
6.
Shuttle Valve
7.
Slew Motor
Shuttle Valve
Control Valve
Tank
Control Valve
Solenoid Valve
Shuttle Valve
WB
↔
A8
WC
↔
B8
WD
↔
SH
Control Valve
Shuttle Valve
Tank
Shuttle Valve
Control Valve
Slew Motor
L1
L2
L3
L4
LT
LP
R1
R2
R3
R4
RT
RP
WA
WA
WB
WB
WC
WC
WD
P
A2
B2
SH
B8
P1
B7
B2
B1
A8
A7
A2
A1
J1C501
5
1
4
2
6
7
3
74
76
Table of Contents
General
10
Table of Contents
10
Safety Precautions
11
Cautions During Disassembly and Assembly
17
Cautions During Removal and Installation of the Hydraulic Units
18
Cautions During Removal and Installation of Piping
19
Handling of Seals
20
Tightening Torques
21
Specifications
26
Names of Components
27
Dimensions
28
Lifting Capacities
29
Specification Tables
31
Mass Tables
36
Recommended Lubricants
37
Servicing Standards
38
Reference Value Table
41
Standards for Judging Performance
41
Methods for Inspecting Performance
43
Machine Configuration
54
Drive System
55
Slew System
61
Travel System
63
Upper Frame
69
Control System
75
Attachments
81
Hydraulic System
89
Electrical System
93
Interference Prevention System
95
Hydraulic Units
112
Hydraulic Pump
113
Control Valve
145
Solenoid Valve
167
Pilot Valve
175
Pilot Valve (Offset)
183
Cylinders
187
Travel Motor
205
Slew Motor
229
Swivel Joint
261
Troubleshooting
269
No Operations Can be Done
270
Overall Machine
270
All Operations Can be Done, but There Is no Power
271
The Boom, Bucket, Slew and Arm Do Not Move at All, or the Speed Is Low
273
The Boom Cannot be Raised or the Left Offset Cannot be Operated. the Interference Prevention System Does Not Operate Normally
275
Machine Travel
279
The Machine will Not Travel at All
279
Right or Left Travel Is Impossible
280
Speed Drops in the Left or Right Travel, Causing the Machine to Travel in a Curve
282
Machine Won't Accelerate During Travel
284
No Slewing Can be Done
287
Slewing
287
Right or Left Slewing Cannot be Done
290
Slewing Speed Is Low, or There Is no Power
291
The Machine Slews, but Overrun When Slewing Stops Is Great, or It Cannot be Stopped
293
Boom
295
The Boom Cylinder Doesn't Move
295
Boom Cylinder Operation Is Slow, or There Is no Power
297
The Amount of Boom Natural Drop Is Great
298
Arm
299
The Arm Cylinder Doesn't Move
299
Arm Cylinder Operation Is Slow, or There Is no Power
301
The Amount of Arm Natural Drop Is Great
303
Bucket
304
The Bucket Cylinder Doesn't Move, or There Is no Power
304
The Amount of Bucket Natural Drop Is Great
306
Offset
307
The Offset Cylinder Doesn't Move
307
Dozer Blade
309
The Dozer Blade Cylinder Doesn't Move, or There Is no Power
309
The Amount of Dozer Blade Natural Drop Is Great or the Dozer Blade Won'thold the Machine up
311
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Takeuchi TB53FR Specifications
General
Brand
Takeuchi
Model
TB53FR
Category
Compact Excavator
Language
English
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