Part of the John Deere Repair Manuals.
Technical Manual TM-1093 strips the John Deere 690B, JD690-B excavator down to its individual castings and builds it back up, and the John Deere 690b, jd690-b technical manual pdf runs 628 pages doing it. Wiring diagrams trace the charging and starting circuits back through the gauge cluster and the switches behind it. System testing takes up the longest stretch of the book, pairing hydraulic schematics with analyzer procedures that walk the rotary manifold leakage test and the relief valve checks to a pass or fail number, not a shrug. Set the boom relief at 3000 psi (20 685 kPa), verify the 5 in. (127 mm) boom cylinder bore before you order a seal kit, and check crowd and bucket rod diameter at 3.25 in. (83 mm). Bookmarks and searchable text put you in the right section in seconds.
What's Inside This John Deere 690B, JD690-B Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 11-54 | Specifications, Predelivery, Delivery, And After-Sale Services, Lubrication |
| Engine | 55-162 | Engine Removal and Installation, Basic Engine, Engine Lubrication System, Engine Cooling System, Fuel System |
| Electrical System | 163-252 | Batteries, Charging System, Starting System, Gauges and Switches, Heating and Air Conditioning |
| Power Train | 253-286 | Undercarriage, Track Drive, Swing Drive |
| Hydraulic System | 287-392 | Main Hydraulic Pump, Hydraulic Motors, Control Valve and Linkage, Pilot Controls |
| Miscellaneous Components | 393-446 | Tracks and Track Rollers, Boom and Bucket, Counterweight and Rear Bumper |
| System Testing | 447-584 | Diagnosis and Testing, Engine Testing, Electrical System Testing, Heating and Air Conditioning Testing, Hydraulic System Testing |
| Hydraulic System Analyzer | 585-622 | Pretest Inspection, Operational Checks, System Relief Valves Test, Rotary Manifold Leakage Test |
| Index | 623-628 | Alphabetical Index, Maintenance and Service Topics |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Boom cylinder bore | 5 in. (127 mm) | p. 12 |
| Boom cylinder rod diameter | 2.75 in. (70 mm) | p. 12 |
| Boom relief valve pressure | 3000 psi (20 685 kPa) (210.9 kg/cm²) and 3750 psi (25 856 kPa) (263.6 kg/cm²) | p. 11 |
| Crowd relief valve pressure | 3000 psi (20 685 kPa) (210.9 kg/cm²) | p. 11 |
| Valve protrusion (new parts) | 0.024 to 0.038 in. (0.61 to 0.97 mm) | p. 60 |
| Maximum valve recess | 0.006 in. (0.15 mm) | p. 60 |
| Nominal depth of gear track cut | 0.008 inch (0.20 mm) | p. 289 |
| Maximum depth of gear track cut | 0.015 inch (0.38 mm) | p. 289 |
| Rotary manifold leakage limit (drain line port) | 2.0 gpm (8 L/min.) | p. 579 |
| Rotary manifold leakage limit (right-hand ports) | 0.5 gpm (2 L/min.) | p. 579 |
| Sprocket cap screw torque | 240 ± 24 lb-ft (325 ± 33 N·m) | p. 404 |
| Engine Gross Power (@ 2400 rpm) | 141 hp (105.1 kW) | p. 11 |
John Deere 690B, JD690-B Common Problems This Manual Covers
Boom cylinder settles under load and rod seals weep oil down the barrel
Measure cylinder leakage with the rod fully extended and pressure applied. More than 0.5 in.³/min. (8 cm³/min.), the limit given on page 574, calls for a seal kit. On reassembly, tighten the rod guide to 275 lb-ft following the procedure on page 373.
Manual Section: Hydraulic System Testing p. 574Excessive play at bucket pins and bushings, tracks slap and derail on turns
Pry each pin joint with a bar and watch for movement at the bushing bore before ordering parts. Measure track sag across the carrier rollers and adjust to 2.50 to 4.00 in. (64 to 102 mm) as specified on page 403. Retorque sprocket cap screws to 240 ± 24 lb-ft (325 ± 33 N·m) per page 404.
Manual Section: Undercarriage p. 403Engine cranks slowly or will not start, then runs rough with gray exhaust smoke
Run a compression test and the fuel supply pump pressure test on page 459. Then verify valve clearance at 0.018 in. (0.46 mm) intake and 0.028 in. (0.71 mm) exhaust, both listed on page 59. Confirm crankcase oil is at the 20 qt (18.9 L) fill capacity before restarting.
Manual Section: Engine Testing and Adjustments p. 459Frequently Asked Questions
What are the torque specifications for the track shoe bolts on the John Deere 690B?
The track shoe bolts on the John Deere 690B must be tightened to a torque of 250 lb-ft (35 kg-m). p. 49
How do you fix john Deere 690B loses hydraulic power under load, boom and crowd feel weak digging?
Check the inlet section relief valve pressure before condemning the pump. It should read 2500 to 2700 psi (17 240 to 18 620 kPa) per the test values on page 576, with boom relief at 3000 psi (20 685 kPa) listed on page 11. Low readings point to a worn pump or restricted filter.
How do you fix boom, crowd, and travel functions drift into each other or move on their own?
Test the rotary manifold for internal bypass. Cap the circuit ports, run the drain line into a container, and measure flow. Anything over 2.0 gpm (8 L/min.) at the drain port or 0.5 gpm (2 L/min.) at the right hand ports, as listed on page 579, means worn swivel O-rings. Replace the seal set. p. 579
How do you fix swing function will not operate or works intermittently, house lock stays engaged?
Start with the momentary and permanent house lock checks on page 27, not the swing motor. Inspect the house lock connector for corroded or spread pins and test the solenoid for continuity against the wiring diagram. Once the circuit checks good, drain and refill the swing drive to its 8 qt (7.5 L) capacity and look for metal in the old oil.
Is this John Deere 690B Technical Manual a digital download?
Immediate download of the complete 628-page searchable Technical Manual. Access it on any device, from a laptop at your desk to a phone in the field.
Are there any print restrictions on this John Deere 690B manual?
Yes, printing is unrestricted: a single page, a chapter, or the lot, on letter or A4.
Does this John Deere 690B Technical Manual have electrical diagrams?
Yes, there is a wiring diagram covering the electrical layout of the machine. Page 472 carries one of them.
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