![Case 80 Cruz Air Repair Manual [Excavator]](https://youfixthis.com/wp-content/uploads/2012/02/Manual_Download-300x300.jpg)
![Case 750L 850L Tier 3 Repair Manual [Crawler Dozer]](https://youfixthis.com/wp-content/uploads/2016/04/2016-04-20_9-18-13-300x300.jpg)
Part of the Case Repair Manuals.
All 1,360 pages of this Case 650K, 750K, and 850K Tier II Repair Manual (OEM #87364103-NA) cover your dozer from primary hydraulics to final drive. Inside: electrical schematics for the battery, alternator, fuse blocks, and drive train controller; full hydrostatic circuit diagrams with complete fluid routing; a fault code library paired with troubleshooting procedures; and connector pinout tables for every control circuit. Dedicated chapters break down the hydrostatic transmission, service and parking brakes, track drive, blade positioning, and cab HVAC. The equipment pump flows 76.8 L/min at 207 bar at 2000 RPM. Torque the PTO shaft retainer to 68 Nm before buttoning up the pump assembly. No more chasing hydrostatic faults with a meter and a hunch. One-click download, jump to any chapter by bookmark, search any spec by keyword, and get back to wrenching.
What's Inside This Case 650K–850K Tier II Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction | 6-19 | Basic Instructions, Hydraulic Contamination, Conversion Factors |
| Distribution Systems-A | 20-545 | Primary Hydraulic Power System, Secondary Hydraulic Power System, Electrical Power System, Lighting System, Fault Codes |
| Power Production-B | 546-655 | Engine, Fuel and Injection System, Air Intake System, Engine Coolant System, Lubrication System, Starting System |
| Power Train-C | 656-725 | Power Coupling Fixed Coupling, Transmission Hydrostatic |
| Travelling-D | 726-973 | Service Brake Hydraulic, Parking Brake Hydraulic, Wheels and Tracks Tracks, Final Drive |
| Body and Structure-E | 974-1201 | User Controls and Seat, User Platform, Environment Control Heating System, Environment Control Air-Conditioning System, Environment Control Heating |
| Tool Positioning-G | 1202-1315 | Lifting, Tilting, Swinging |
| Working Arm-H | 1316-1325 | Single Arm Tool Attachment Lift |
| Tools and Couplers-J | 1326-1356 | Digging Non-Articulated Digging Tools, Landscaping Dozer Blade |
| 5-6280 Schematics | 1357-1358 | Battery, Alternator, Ignition Switch, Starter, Fuse Blocks, Drive Train Controller |
| 6-78871 Schematics | 1359-1360 | Hydrostatic Pump Assembly, Hydrostatic Filter Assembly, Brake Solenoid Valve, Lift Cylinders, Tilt Cylinder, Oil Cooler Assembly |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Alternator pulley nut torque | 60 - 70 Nm (44 - 52 lb ft) | p. 325 |
| Non PTO pump cover bolts torque | 66 - 80 Nm (49 - 59 lb ft) | p. 30 |
| PTO shaft retainer torque | 68 Nm (50 lb ft) | p. 30 |
| Proximity switch clearance | 1 - 3 mm (0.040 - 0.118 in) | p. 755 |
| Control valve brake solenoid coil resistance | 9 to 10 ohms at 25 °C (77 °F) | p. 747 |
| Fuel tank capacity | 189.3 L | p. 565 |
| Engine coolant system capacity (without heater) | 18.9 L | p. 585 |
| ROPS support mount bolts torque | 550 Nm | p. 1014 |
| 650K and 750K | ||
| Lubrication system capacity | 13.6 L | p. 607 |
| 650K TIER II | ||
| Lower roller capacity | 180 ml | p. 775 |
| 750K and 850K | ||
| Idler wheel capacity | 490 ML | p. 780 |
Case 650K–850K Tier II Common Problems This Manual Covers
Case 650K Tier II dozer main harness connector loose pins, engine fails to start or dies intermittently
Inspect the main harness connectors for pushed pins or corrosion using the wiring diagram on page 1357. Test circuit continuity across the main harness. Verify the alternator pulley nut is torqued to 60 - 70 Nm (44 - 52 lb ft) on page 325 to ensure proper charging.
Manual Section: 5-6280 Schematics p. 1357Hydrostatic system throws code 6-78871, hydraulic implements move erratically or lack lifting pressure
Review the hydraulic schematic on page 1359 to trace the hydrostatic pump assembly lines. Inspect the pump to motor hoses and torque the spit flange clamps to 90 - 100 Nm (66 - 74 lb ft) as specified on page 664. Drain and clean the hydrostatic filter assembly.
Manual Section: 6-78871 Schematics p. 1359Cab control buttons mechanically stuck or proximity switches fail to register operator inputs
Adjust the proximity switch clearance to 1 - 3 mm (0.040 - 0.118 in) following the procedure on page 755. Test the switch functionality by toggling the cab control buttons. If the switch remains unresponsive, remove the switch housing and inspect the internal wiring for breaks.
p. 755Frequently Asked Questions
How to reset error codes on Case 750K Tier II
To reset error codes, first identify if the fault code is still active. Before clearing, record all fault codes, their occurrences, and engine hours. Then, turn the ignition switch to the RUN position to power the drivetrain controller and clear all fault codes from the controller. p. 357
Torque specs for Case 850K Tier II engine bolts
The torque specifications for engine bolts on the Case 850K Tier II are as follows: engine mount bolts to chassis require 205 - 230 Nm (151 - 170 lb ft), rear engine mount brackets to bell housing require 118 - 133 Nm (87 - 98 lb ft), and front engine mount bracket to engine block require 125 - 156 Nm (92 - 115 lb ft). p. 549
What are the replacement specifications for Electrical connectors and pins?
The manual provides detailed circuit IDs and descriptions for various electrical connectors and pins across pages 143-224. However, it does not specify general replacement specifications such as torque values, material types, or specific part numbers for the connectors and pins themselves.
What are the replacement specifications for Hydraulic pump?
The hydraulic pump specifications include torque values for various components. For instance, non-PTO pump cover bolts require 66 - 80 Nm (49 - 59 lb ft), pump housing bolts require 9 Nm (80 lb in), and PTO shaft retainers require 68 Nm (50 lb ft).
How will I receive this Case 650K Tier II, 750K Tier II, 850K Tier II manual?
This is a 1360-page searchable PDF ready for immediate download. Works on any device, so pull it up on your phone while you're under the hood. No shipping, no waiting.
Is this Case 650K Tier II, 750K Tier II, 850K Tier II Repair Manual printable?
No restrictions at all. Print individual pages, full chapters, or the entire manual. The PDF is completely unlocked.
Does this Case 650K Tier II, 750K Tier II, 850K Tier II manual include?
Yes. The manual includes hydraulic circuit diagrams, system schematics, and component specifications with pressure ratings.
Reviews
There are no reviews yet.