Format: PDF (Printable Document)
File Language: English
File Pages: 379
File Size: 13.57 MB (Speed Download Link)
Brand: John Deere
Model: 690E LC Excavator Operation and Tests
Book No: TM1508
Type of Document: Technical Manual
$ 40
Out on a 690E LC, you’re usually digging foundations, trenching around services, or loading trucks in rough, muddy sites. This Operation and Tests manual is what I’d grab when the machine isn’t behaving as expected and I need to trace how systems are supposed to work before I start turning wrenches. For example, if the boom is drifting down or acting sluggish, this book walks you through how the hydraulic circuits should respond so you can isolate whether it’s a control issue, a valve problem, or something upstream before you pull hoses or swap parts.
Applications & Use Cases
FAQ
Q: Can I use this manual on a tablet in the field?
A: Yes, it’s practical to keep it on a tablet so you can zoom diagrams and search procedures right beside the machine.
Q: Is it worth printing sections of this manual?
A: Many techs print the key test pages and keep them in a binder so they can mark readings, note hose routing, and avoid getting a device greasy.
Safety Note
Always verify hydraulic pressure is relieved and components are properly supported before disconnecting any lines or starting tests.
Contents
Page Page
Group 05—Theory Of Operation Boom, Regenerative and Anti-Drift Valves
Hydraulic System Components—(Serial No. Schematic . . . . . . . . . . . . . . . . . . . . . .9025-05-58
—556935) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-1 Arm, Regenerative and Anti-Drift Valves
Hydraulic System Components—(Serial No. Schematic . . . . . . . . . . . . . . . . . . . . . .9025-05-59
556936—) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-2
Control Valve Manifold
System Controller . . . . . . . . . . . . . . . . . . . . .9025-05-3
Operation (SN —556935) . . . . . . . . . . . .9025-05-60
Switch Panel 2 . . . . . . . . . . . . . . . . . . . . . . .9025-05-4
Operation (SN 556936—) . . . . . . . . . . . .9025-05-62
Hydraulic System Operation—(Serial No.
Arm Cylinder Restrictor . . . . . . . . . . . . . . . .9025-05-64
—556935) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-8
Hydraulic System Operation—(Serial No. Boom Cylinder Restrictor (SN 556936—
556936—) . . . . . . . . . . . . . . . . . . . . . . . .9025-05-10 ). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-66
Control System . . . . . . . . . . . . . . . . . . . . . .9025-05-12 Control Valve Sections
Pilot Circuit . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-13 Operation. . . . . . . . . . . . . . . . . . . . . . . . .9025-05-68
Pilot Pump . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-16 Neutral. . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-70
Pilot Filter . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-17 Starting to Move . . . . . . . . . . . . . . . . . . .9025-05-72
Engine Speed Control Actuator Full Actuation. . . . . . . . . . . . . . . . . . . . . .9025-05-74
Slow Idle . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-18 Combined . . . . . . . . . . . . . . . . . . . . . . . .9025-05-76
Fast Idle . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-19 Swing Control Valve . . . . . . . . . . . . . . . .9025-05-78
Manual Override . . . . . . . . . . . . . . . . . . .9025-05-20 Circuit Relief and Anticavitation Valve . . . . .9025-05-80 9025
Pilot Pressure Regulating Valve (SN — Make-Up Valve . . . . . . . . . . . . . . . . . . . . . .9025-05-82
556935) . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-21 Return Manifold (SN 556936—) . . . . . . . . .9025-05-84
Pilot Pressure Regulating Valve (SN Boom Regenerative Valve (SN 545157—
556936—) . . . . . . . . . . . . . . . . . . . . . . . .9025-05-22 556935) . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-86
Pilot Shut-Off Valve. . . . . . . . . . . . . . . . . . .9025-05-24 Arm Regenerative Valve (SN 546277—
Pilot Controller 556935) . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-92
Neutral. . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-25 Arm Regenerative Valve (SN 556936—) . . .9025-05-99
Metering . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-26 Anti-Drift Valve, Arm and Boom. . . . . . . . .9025-05-104
Full Stroke . . . . . . . . . . . . . . . . . . . . . . . .9025-05-27 Swing Torque Control Valve Long Front (SN
Dig Pilot Check Valve . . . . . . . . . . . . . . . . .9025-05-28 —546276) . . . . . . . . . . . . . . . . . . . . . . .9025-05-108
Dual Solenoid Block . . . . . . . . . . . . . . . . . .9025-05-30 Swing Torque Control Valve (SN
Swing Brake Release Solenoid . . . . . . . . . .9025-05-32 546277—) . . . . . . . . . . . . . . . . . . . . . . .9025-05-110
Swing Motor . . . . . . . . . . . . . . . . . . . . . . . .9025-05-34 Pressure Control Manifold (SN —
Swing Crossover Relief Valve 556935) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-116
Normal Operation . . . . . . . . . . . . . . . . . .9025-05-36 Control Valve Manifold (SN 556936—) . . .9025-05-118
Relief Operation. . . . . . . . . . . . . . . . . . . .9025-05-38 Power Boost Solenoid Actuated (SN —
Swing Stop Cushion Valve (SN 546277— 556935) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-120
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-41 Power Boost Solenoid (SN 556936—). . . .9025-05-122
Swing Gearbox . . . . . . . . . . . . . . . . . . . . . .9025-05-48 Load Sense System Relief Valve . . . . . . .9025-05-124
Control Valve and Manifold Safety Relief Valve . . . . . . . . . . . . . . . . . .9025-05-126
Component Location (SN —556935) . . . .9025-05-50 Main Pump (SN —559602) . . . . . . . . . . . .9025-05-128
Schematic (SN —556935) . . . . . . . . . . . .9025-05-52 Main Pump (SN 559603—) . . . . . . . . . . . .9025-05-130
Boom, Swing, and Arm Control Valve Pump Displacement Solenoid (SN —
Component Location (SN 556936—) . . . .9025-05-54 559602) . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-132
Schematic (SN 556936—) . . . . . . . . . . . .9025-05-56 Pump Displacement Solenoid (SN
Control Valve and Manifold 559603—) . . . . . . . . . . . . . . . . . . . . . . .9025-05-133
Swing and Torque Control Valves
Schematic . . . . . . . . . . . . . . . . . . . . . .9025-05-57 Continued on next page
TM1508 (12JUL05) 9025-1 690E LC Excavator Operation and Tests
080805
PN=1
Contents
Page Page
Pump Regulator Control Valve Spool Stop Screws . . . . . . . .9025-20-16
Minimum Displacement (SN — Control Valve Spool Stop Screws—Long
559602) . . . . . . . . . . . . . . . . . . . . . . .9025-05-134 Front . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-20-20
Minimum Displacement (SN 559603—
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-136 Group 25—Tests
Fixed and Maximum Displacement (SN — JT05801 Clamp-On Electronic Tachometer
559602) . . . . . . . . . . . . . . . . . . . . . . .9025-05-138 Installation . . . . . . . . . . . . . . . . . . . . . . . . .9025-25-1
Fixed and Maximum Displacement (SN JT05800 Digital Thermometer Installation . . .9025-25-1
559603—) . . . . . . . . . . . . . . . . . . . . .9025-05-140 JT02156A Digital Pressure And Temperature
Pump Neutral Control . . . . . . . . . . . . . . . .9025-05-143 Analyzer Installation. . . . . . . . . . . . . . . . . .9025-25-1
Pump Low Pressure Control . . . . . . . . . . .9025-05-147 Hydraulic System Warm-Up . . . . . . . . . . . . .9025-25-2
Pump High Pressure Control. . . . . . . . . . .9025-05-151 Hydraulic Pump Start-Up. . . . . . . . . . . . . . . .9025-25-3
Return Circuit . . . . . . . . . . . . . . . . . . . . . .9025-05-155 Swing Motor Start-Up . . . . . . . . . . . . . . . . . .9025-25-4
Drain Circuit . . . . . . . . . . . . . . . . . . . . . . .9025-05-159 Swing Brake and Gearbox Start-Up . . . . . . .9025-25-4
Reservoir. . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-162 Hydraulic Oil Filter Inspection . . . . . . . . . . . .9025-25-5
Cylinder. . . . . . . . . . . . . . . . . . . . . . . . . . .9025-05-163 Hydraulic Oil Cleanup Using Portable
Filter Caddy . . . . . . . . . . . . . . . . . . . . . . . .9025-25-6
Group 10—System Operational Checks Hydraulic Oil Cleanup Using Clean-Up
Hydraulic Operational Checks . . . . . . . . . . . .9025-10-1 Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-25-7
Hydraulic System Checks . . . . . . . . . . . . . . .9025-10-1 Pilot Pressure Regulator Valve . . . . . . . . . .9025-25-10
Control Valve Checks . . . . . . . . . . . . . . . . . .9025-10-8 System Relief Valve . . . . . . . . . . . . . . . . . .9025-25-12
Manual Override Valve Checks . . . . . . . . . . .9025-10-9 Power Boost Solenoid Valve . . . . . . . . . . . .9025-25-14
Cycle Time Checks . . . . . . . . . . . . . . . . . . . .9025-10-9 Dig Function Circuit Relief Valve (SN —
Swing Brake Checks . . . . . . . . . . . . . . . . . .9025-10-13 556935) . . . . . . . . . . . . . . . . . . . . . . . . . .9025-25-16
Dig Function Circuit Relief Valve (SN
Group 15—Diagnostic Information 556936—) . . . . . . . . . . . . . . . . . . . . . . . .9025-25-19
Hydraulic System . . . . . . . . . . . . . . . . . . . . .9025-15-1 Pump Displacement Solenoid Valve . . . . . .9025-25-22
Hydraulic Circuit Symbols . . . . . . . . . . . . . . .9025-15-7 Load Sense Valve Differential Pressure . . .9025-25-25
9025
Component Location Manual Bypass Pressure Reducing
Pilot Circuit (SN —556935) . . . . . . . . . . . .9025-15-9 Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-25-33
Main Hydraulic Circuit (SN —556935) . . .9025-15-10 Swing Motor Crossover Relief Valve . . . . . .9025-25-35
Pilot Circuit (SN 556936—) . . . . . . . . . . .9025-15-12 Swing Torque Control Valve
Main Hydraulic Circuit (SN 556936—) . . .9025-15-13 Long Front (SN —546276). . . . . . . . . . . .9025-25-38
Schematic (SN 546277—). . . . . . . . . . . . . . . . . . . . .9025-25-41
Main Hydraulic (SN —556935) . . . . . . . .9025-15-15 Control Valve Return Anticavitation Check
Main Hydraulic (SN —556936) . . . . . . . .9025-15-18 Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-25-44
Control Lever Pattern Information . . . . . . . .9025-15-22 Reservoir Pressure . . . . . . . . . . . . . . . . . . .9025-25-46
Pilot Controller Lines—John Deere Oil Cooler Pressure Drop . . . . . . . . . . . . . .9025-25-47
Pattern. . . . . . . . . . . . . . . . . . . . . . . . . . .9025-15-24 Pilot Pump Flow . . . . . . . . . . . . . . . . . . . . .9025-25-48
Pilot Controller Lines—Standard Pattern Hydraulic Pump Test Using Flow Meter . . .9025-25-51
(SAE). . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-15-26 Hydraulic Pump Test Using Cycle Time . . .9025-25-56
Hydraulic Pump Case Drain Flow . . . . . . . .9025-25-57
Group 20—Adjustments Cyclinder Drift . . . . . . . . . . . . . . . . . . . . . . .9025-25-60
JT05800 Digital Thermometer Installation . . .9025-20-1 Swing Motor Case Drain Flow. . . . . . . . . . .9025-25-64
Hydraulic System Warm-Up . . . . . . . . . . . . .9025-20-2 Swing Brake and Gearbox Lubrication and
Lower Boom With Engine Stopped . . . . . . . .9025-20-4 Cooling Flow . . . . . . . . . . . . . . . . . . . . . .9025-25-68
Raise Boom With Engine Stopped . . . . . . . .9025-20-6 Auxiliary Function Circuit Relief Valve . . . . .9025-25-70
Swing Upperstructure With Engine Cycle Times . . . . . . . . . . . . . . . . . . . . . . . .9025-25-72
Stopped . . . . . . . . . . . . . . . . . . . . . . . . . . .9025-20-8 Cycle Times For Long Front . . . . . . . . . . . .9025-25-75
Pilot Shut-Off Valve Linkage . . . . . . . . . . . .9025-20-11 TM Worksheet 1 Of 7—690E LC
Arm Cylinder Restrictor (Rod End) . . . . . . .9025-20-12 Excavator. . . . . .
TM Worksheet 2 Of 7—690E LC
Excavator. . . . . . . . . . . . . . . . . . . . . . . . .9025-25-78
TM Worksheet 3 Of 7—690E LC
Excavator. . . . . . . . . . . . . . . . . . . . . . . . .9025-25-79
TM Worksheet 4 Of 7—690E LC
Excavator. . . . . . . . . . . . . . . . . . . . . . . . .9025-25-80
TM Worksheet 5 Of 7—690E LC
Excavator. . . . . . . . . . . . . . . . . . . . . . . . .9025-25-81
TM Worksheet 6 Of 7—690E LC
Excavator Art (Serial No. —556935) . . . .9025-25-82
TM Worksheet 7 Of 7—690E LC
Excavator Art (Serial No. 556936—) . . . .9025-25-83
