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Case 821C Wheel loader Workshop Repair & Service Manual


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Case 821C Wheel loader Workshop Repair & Service Manual

total 3,000+ pages, bookmarked, Searchable, Printable, high quality PDF
7-12102 – Case 821C Loader Service Manual (EN).pdf – 716 pages
7-15741 – Case Chargeuse 821C Manuel d’entretien (FR).pdf- 564 pages
6-1241 – 821C Operators Manual.pdf- 240 pages
6-12340 – C-Series Wheel loader Cares Manual, Machine Location, Job Code Manual.pdf
7-13051 – 821C Loader Service Manual.pdf- 716 pages
7-13053 – 821C Loader Service Manual.pdf- 759 pages
7-59391 – 821B Loader Complete Schematic Set.pdf- 192 pages
Wheel Loader Series 21 C Training Manuel.pdf- 210 pages

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case 821C Wheel loader. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case 821C Wheel loader like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case 821C Wheel loader is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
6004-40
Adjust Backlash and Bearing
Preload
STEP 175
Place a dial indicator right-angled at the outer diameter of the tooth flank (ring gear).
Adjust the pinion to ring gear backlash to the low side of specifications (see value etched on the outer diameter of the ring gear) by alternately turning each of the adjusting nuts to move the ring gear closer to or further away from the pinion. Backlash is checked using a dial indicator against a tooth on the ring gear.
NOTE: Rotate the differential several times and recheck the backlash.
STEP 176
Go to the adjusting nut opposite the ring gear and loosen the nut approximately one turn to release pressure on the bearing. It should be very noticeable that pressure is released on the bearing, as the adjusting nut will turn much easier.
STEP 177
Tighten the adjusting nut slowly until firm contact is made with the bearing.
NOTE: As the adjusting nut makes firm contact with the bearing, the adjusting nut will immediately begin
to turn much harder.
STEP 178
To adjust the bearing preload, note the position of the adjusting nut. Now tighten the nut two additional
notches.
STEP 179
As the bearing preload is adjusted as described in steps 176, 177 and 178, pinion to ring gear backlash may increase slightly. Check pinion backlash to confirm that it is within specifications. If backlash is
outside of specified range, repeat step 175 through 179 again.
STEP 180
A8
Coat several teeth on the ring gear with marking ink and roll the ring gear in both directions over the drive pinion.
Compare the obtained tooth contact pattern with the examples on page 4 and 5.
ATTENTION: If the tooth contact pattern differs, there has been a measuring error at determination of the shim. This must be corrected.
STEP 181
Install both adjusting nuts with the slotted pins on the differential carrier.
STEP 182
BD01F099
Install the CAS2846 pinon lifting bail onto the pinion shaft and insert the differential carrier into the axle casing.
NOTE: Align the two alignment marks together.
ATTENTION: Apply sealing compound on the mounting surface.
STEP 183
Install new bolts on the differential carrier.
Tighten torque ……… 250 Nm (185 pound-feet)
STEP 184
Insert the stub shaft into the spline of the axle bevel gear.
STEP 185
Install the thrust washer removed at disassembly in the sun gear shaft with grease.

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Case 750L, 850L Crawler Dozer Workshop Repair & Service Manual


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Case 750L, 850L Crawler Dozer Workshop Repair & Service Manual

total 1,500+ pages, bookmarked, Searchable, Printable, high quality PDF

“87728445.pdf”
750L, 850L TIER 3 Crawler Dozer Repair Manual
1,513 pages

“87479855.pdf”
750L, 850L TIER 3 Crawler Dozer Operator’s Manual
144 pages

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case 750L, 850L Crawler Dozer. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case 750L, 850L Crawler Dozer like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case 750L, 850L Crawler Dozer is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
POWER PRODUCTION – STARTING SYSTEM
Engine starter- Remove
1. Park the machine on a level surface.
2. Lower the attachments to the floor.
3. Apply the parking brake and stop the engine, remove the key from the ignition switch.
4. Fasten a Do Not Operate tag to the instrument panel.
5. Open the left rear ROPS door.
6. Put the battery disconnect switch in the off position.
7. Open the right-hand side engine panel.
8. Remove the right-hand side lower panel.
NOTE: If two batteries are installed, there are two battery cables connected to the starter.
9. Fasten identification tags to the wires for the starter.
Disconnect the wire from the bottom of the starter solenoid. Pull the rubber boot away from the terminal
and disconnect the battery cable(s) and the three wiring harness from the side of the starter solenoid.
10. Support the starter. Loosen and remove the two bolts, washers and clamp. Remove the starter.
Next operation:
Engine starter- Disassemble (B.SO.A) or Engine starter- Preliminary test (B.SO.A).
Engine starter- Install
Prior operation:
Engine starter- Electrical test (B.80.A),
1. Position the starter in the flywheel housing.
2. Install the two bolts, washers, and clamp to fasten the starter to the flywheel housing. Torque the bolts to 68 – 77 Nm (50 – 57 lb ft).
3. Connect the battery cable(s) and the three wiring harness wires to the side of the starter solenoid and torque to 2.6 – 4.6 Nm (23 – 41 lb in). Connect the wire to the bottom of the starter solenoid and torque to 17.7- 24.5 Nm (13- 18 lb ft). Push the rubber boot onto the terminal.
4. Install the right-hand side lower panel.
5. Close the right-hand side engine panel.
6. Put the battery disconnect switch in the on position.
7. Close the left rear ROPS door.
8. Remove the Do Not Operate tag from the instrument panel.
Engine starter – Preliminary test
Prior operation:
Engine starter – Remove (B.SO.A).
Prior operation:
Before starting the No-Load Test the following testing equipment must be obtained:
(a) One Sun Electric CAS10147 Tester, an equivalent tester, or separate pieces oftest equipment.
(b) One hand held tachometer to measure the speed of the armature shaft.
(c) One remote starter button to actuate the starter.
(d) One fully charged 12 volt battery to supply the electricity to turn the starter.
Prior operation:
Before starting the No-Load test, check to see if:
(a) The gear on the starter drive can be pulled out of the starter housing.
(b) The starter drive can be turned. To do this, pull the gear on the starter drive out of the starter drive housing. Turn the gear to turn the starter drive and the armature. If the starter can not be turned, disassemble the starter and make repairs as needed.
NOTE: The starter needs to be removed from the engine before the No-Load Test can be done.
NOTE: The No-Load Test should be done at 20 oc ( 68 °F).
1. If the Sun Electric CAS10147 is being used, turn the AMP Range switch to ( 0- 100 amps), turn the Volt
2. Range switch to ( 18 – 40 volts), flip the Volt Lead switch to the “EXT.” position and turn the Load Control dial to the “OFF” position.
3. If the other test equipment is being used, connect the test equipment according to the above procedure and follow the manufacturer’s instructions.
Fasten the starter in a vise or use another method to prevent the starter from moving. This must be done to prevent personal injury.
Connect the positive battery cable to the battery terminal on the starter solenoid and the negative battery cable to the mounting flange of the starter.
(1) Positive battery cable
(2) Battery terminal
(3) Negative battery cable

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Case 650K, 750K, 850K Crawler Workshop Repair & Service Manual


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1,360 + 141 pages, bookmarked, Searchable, Printable, high quality PDF

MAKE: Case
MODEL: 650K, 750K, 850K
FORMAT: PDF
PAGES / SIZE: 1,360 (Service Manual) + 141 (Operator’s Manual)

“87364103.pdf”
650K TIER II, 750K TIER II, 850K TIER II Repair Manual
1,360 pages
87364103-NA 2 4/12/2007

6-85641.pdf
650K, 750K, 850K Series Crawler Operator’s Manual
141 pages
6-85641 NA; 12-2005

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case 650K, 750K, 850K Crawler. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case 650K, 750K, 850K like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case 650K, 750K, 850K Crawler is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
DISTRIBUTION SYSTEMS- FAULT CODES
4521-Bump up switch stuck on at power up
650K TIER II [CALOOOOOO ~ CAL012143], 750K TIER II [CALOOOOOO ~ CAL003348], 850K TIER II [CALOOOOOO ~ CAL005666]
Cause:
1. Connectors not mated fully, pins not pushed into connector fully, bent pin or broken wire at rear of connector.
2. Button is mechanically stuck.
3. Wiring or switch circuits shorted.
4. Failed Drivetrain Control Module.
Possible failure modes:
1. The Instrument Cluster is indicating that the Maximum Speed setting is increasing, when Bump Up Switch is not being commanded.
Solution:
1. Find out if the fault code is still active, refer to Command Display/service switch – Dynamic description (C.20.F).
Prior to clearing fault codes write down all fault codes, number of occurrences, and engine hours at last occurrence.
A. Turn ignition switch to RUN position to power drivetrain controller.
B. Clear all fault codes from the controller.
C. To check for fault code: Move directional control to neutral, ignition switch to run (engine does not need to be running), move both parking levers to down position, move hand throttle to high idle position, and push directional control to forward position.
D. NOT OK- Fault code 4521 is recorded again. Go to step 2.
E. OK for return to service.
2. Inspect the Bump Up Switch Connection.
A. Turn ignition switch and master disconnect off.
B. Check for button mechanically stuck.
C. Clear buttons of any foreign debris.
D. NOT OK- Return to Step 1 to confirm elimination of fault.
E. OK – Go to Step 3.
3. Check for open circuit in the Bump Up Switch.
A Disconnect the Bump Up Switch Connector.
B. Check wiring and connector for Bump Up Switch.
C. NOT OK- Replace handle and button. and return to Step 1 to confirm elimination of fault.
D. OK- Go to Step 4.
4. Replace the Drivetrain Control Module.
A Remove and replace Drivetrain Control Module. refer to Electrical control -Remove (C.20.F) and Electrical control -Install (C.20.F).
B. Write symptom on failed Drivetrain Control Module.
C. Install program with Electronic Service Tool (EST) and calibrate the system.
4522-Bump down switch stuck on at power up
650K TIER II [CAL012200 -], 750K TIER II [CAL003400-], 850K TIER II [CAL005700-]
Cause:
1. Connectors not mated fully, pins not pushed into connector fully, bent pin or broken wire at rear of connector.
2. Button is mechanically stuck.
3. Wiring or switch circuits shorted.
4. Failed Drivetrain Control Module.
Possible failure modes:
1. The Instrument Cluster is indicating that the Maximum Speed setting is increasing, when Bump Down Switch is not being commanded.
Solution:
1. Find out if the fault code is still active, refer to Command Display/service switch -Dynamic description (C.20.F).
Prior to clearing fault codes write down all fault codes, number of occurrences, and engine hours at last occurrence.
A. Turn ignition switch to RUN position to power drivetrain controller.
B. Clear all fault codes from the controller.
C. To check for fault code: Move directional control to neutral, ignition switch to run (engine does not need to be running), move both parking levers to down position, move hand throttle to high idle position, and push directional control to forward position.
D. NOT OK- Fault code 4522 is recorded again. Go to step 2.
E. OK for return to service.
2. Inspect the Bump Down Switch Connection.
A. Turn ignition switch and master disconnect off.
B. Check for button mechanically stuck.
C. Clear buttons of any foreign debris.
D. NOT OK- Return to Step 1 to confirm elimination of fault.
E. OK – Go to Step 3.
3. Check for open circuit in the Bump Down Switch.
A. Disconnect the Bump Down Switch Connector.
B. Check wiring and connector for Bump Down Switch.
C. NOT OK- Replace handle and button, and return to Step 1 to confirm elimination of fault.
D. OK-Go to Step 4.
4. Replace the FNR joystick.
A. Return to Step 1 to confirm elimination of fault.
B. NOT OK-Go to Step 5.
5. Turn ignition switch and master disconnect OFF, disconnect controller Connector C1, turn master disconnect ON.

A. Check for continuity from pins 2 and 28 to ground.
B. NOT OK- Repair ground circuit. Return to Step 1 to confirm elimination of fault.
C. OK-Go to Step 6.
6. Turn the ignition switch ON.
A. Check for power at pins 1 and 27 to ground.
B. Check fuse #9 and fuse #3.
C. Check circuit from pins 1 and 27 Connector C1 to pin 16 Connector C4, form pin 16 Connector M10 to pin 9A Connector M2.
D. NOT OK- Repair power circuit. Return to Step 1 to confirm elimination of fault.
E. OK-Go to Step 7.
7. At Connector C1.

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Case 621E Wheel loader Workshop Repair & Service Manual


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936 pages, bookmarked, Searchable, Printable, high quality PDF

84243974 – 621E TIER 3 Wheel loader Service Manual.pdf
Revised June 2009
Issued September 2007

Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Case 621E Wheel loader. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your Case 621E Wheel loader like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Case 621E Wheel loader is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
621 E Wheel Loader
Service Manual 84243974
(Replaces 87634756)
Table of Contents
General
Section Index – General
Standard Torque Specifications
Fluids and Lubricants
Metric Conversion Chart
Engines
Section Index – Engines
Description
Engine and Radiator Removal and Installation
Stall Tests
After Cooler
For Engine Repair, See the Engine Service Manual
Fuel System
Section Index- Fuel System
For Fuel System Repair, See the Engine Service Manual
Electrical
Section Index- Electrical
Removal and Installation of Starter and Alternator
Electrical Specifications and Troubleshooting
Batteries
Instrument Cluster
Steering
Section Index – Steering
Removal and Installation of Steering Components
Steering Specifications, Pressure Checks, and Troubleshooting
Steering Cylinders
Center Pivot
Auxiliary Steering Motor and Pump
Joystick Steering
Power Train
Section Index – Power Train
Removal and Installation of Power Train Components
Transmission Specifications, Pressure Checks, and Troubleshooting
Transmission
Front Axle
Rear Axle
Rear Axle, Serial Number N8F203848 and After
Drive Shafts, Center Bearing, and Universal Joints
Wheels and Tires
Transmission Control Valve
Brakes
Section Index – Brakes
Removal and Installation of Brake Components
Hydraulic Brake Troubleshooting
Brake Pump
Brake Accumulators
Parking Brake
Hydraulics
Section Index- Hydraulics
How to Read Hydraulic Schematics
Removal and Installation of Hydraulic Components
Hydraulic Specifications, Troubleshooting, and Pressure Checks
Cleaning the Hydraulic System
Hydraulic Pump
Loader Control Valve
Cylinders
Coupler Solenoid Locking Valve
Ride Control Accumulator
Ride Control Valve
Section Index – Mounted Equipment
Air Conditioning Troubleshooting and System Checks For Systems with HFC-
134a Refrigerant
Air Conditioner System Service
Removal And Installation Of Air Conditioning And Heater Components
Loader
Roll Over Protective Structure (ROPS), Cab Structural Frame (CSF)
Cab Glass Installation
Electrical Schematic Foldouts and Hydraulic Schematic Foldout

The instrument cluster monitors a number of functions and can be tailored to fit the operator’s preferences. The instrument cluster not only monitors machine functions, it warns the operator when caution is needed due to a possible malfunction and when immediate action is needed due to a possible critical malfunction. When the machine is started, the instrument cluster will perform the following self-test:
Self-Test
1. Turn the ignition (key) switch to the ON position.
2. The instrument cluster will automatically check each monitored system.
3. All LED’s (Light Emitting Diodes) will illuminate for 2- 3 seconds.
4. Four gauges will energize for 2- 3 seconds.
5. The warning alarm will sound for 2 – 3 seconds.
6. If there is an open circuit between a sensor and the instrument cluster, the LED will flash and the warning alarm will sound for 5 seconds.
7. If there were no faults detected during the check, all monitored systems will return to normal operation.
8. If only some of the LEDs illuminate, replace the instrument cluster.
9. If the LEDs illuminate, but the warning alarm does not sound, see section 4002 and test the alarm circuit.
10. If the warning alarm sounds but the LEDs do not illuminate, if no power is present at buzzer,
replace the instrument cluster, if power is present at the buzzer, replace the buzzer.
11. If the warning alarm does not sound and the LEDs do not illuminate on the instrument cluster, do the following steps to test the power circuit:
Power Circuit Test
A. Check fuse ECA-F3. If the fuse is bad, replace the fuse and repeat Self-Test. If the fuse is good, go to next step.
B. Check wire 19EA for continuity.
Repair/replace the wire as required. If continuity is found go to next step.
C. Check power relay module A for proper operation, see Section 4002. If the power relay module checks good, go to next step.
D. Check the ignition switch for proper operation, see Section 4002. If the ignition switch checks good, go to next step.
E. Check fuse ECC-F5. If the fuse is bad, replace the fuse.

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Case 621D Wheel Loader Factory Service & Shop Manual


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5,500+ pages, bookmarked, Searchable, Printable, high quality PDF

6-42965 – 621D Loader Service Manual.pdf – 1,064 pages
6-42961 – Cargadora 621D Manual de mantenimiento (ES).pdf – 788 pages
6-42961 – Caricatore Case 621D Manuale di manutenzione (IT).pdf -786 pages
6-42962 – 621D Lader Wartungsanleitung (DE).pdf – 988 pages
6-42962 – Chargeuse Case 621D Manuel d’entretien (FR).pdf – 986 pages
6-42964 – Case 621D Loader Service Manual.pdf – 988 pages
621D Loader Electrical Hydraulic Foldout.pdf
621D Loader Schematic.pdf

Complete workshop & service manual with electrical wiring diagrams for Case 621D Wheel Loader. It’s the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Case 621D Wheeled Loader service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

EXCERPT:
STEERING CONTROL VALVE
Removal
1. Remove the left, right, and front cab skirts, located under the cab or canopy.
2. Remove all dirt and grease from the steering control valve (5) and the area around the steering control valve (5), refer to the illustration on page 5.
3. Remove the fill cap for the hydraulic reservoir.
4. Fasten identification tags to the hoses at the steering control valve (5).
5. Disconnect the hoses from the fittings in the steering control valve (5).
6. Cap or plug the fittings and hoses.
7. Turn the steering wheel as required for access to the cap screw (1) that holds the steering column shaft (6) of the steering control valve (5) in the coupling (2).
8. Remove the cap screw (1) that holds the steering column shaft (6) of the steering control valve (5) in the coupling (2).
9. Hold the steering control valve (5) in position and remove the bolts (7), washers (3), and steering isolator mounts (4) that fasten the base plate (11) and steering control valve (5) to the bottom of the pedestal (12).
10. Remove the steering control valve (5) and base plate (11) from the machine.
11. Remove the bolts (9) and lock washers (1 0) that fasten the base plate (11) to the steering control
valve (5).
12. Remove the base plate (11) and seals (8) from the steering control valve (5).