Case Series C User manual

,----------------------1
SERVICE MANUAL
Loaders
680 CK
SeriesC
9-72595
--------------------~
1.Trim along dashed line. b
2. Slide into pocket on Binder Spine.
TYPE 1-4
,----------------------1
SERVICE MANUAL
Loaders
680 CK
SeriesC
9-72595
--------------------~
1.Trim along dashed line. b
2. Slide into pocket on Binder Spine.
TYPE 1-4
,----------------------1
SERVICE MANUAL
Loaders
680 CK
SeriesC
9-72595
--------------------......,:0
1.Trim along dashed line. b
2. Slide into pocket on Binder Spine.
TYPE 1-4
,----------------------1
SERVICE MANUAL
Loaders
680 CK
SeriesC
9-72595
--------------------......,:0
1.Trim along dashed line. b
2. Slide into pocket on Binder Spine.
TYPE 1-4

TABLE OF CONTENTS
SERIES/SECTION SECTION NO.
10
SERIES - GENERAL
General Engine Specifications • • • • • . • • • . • • • • . • • • • • • • • • • • • • • • . • • • • • .
11
Maintenance and Lubrication • • • • • • . • • • • • • • • • • . • • • • • • • • • • • • • • • • • •
1050
Torqt1e Chart • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 1051
20
SERIES - ENGINES
Cylinder Head an.d Valves • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • . • 22
Engine Block Assembly • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 23
Water Pump, Thermostats, Oil Cooler, and Filters ••••••••••••••••••••.••
25
Engine Removal and Stall Checks • . • • • • • • • • • • • • . • • • • • • • • • • • • • • • • • •
2050
Air Clean.er • • • • • . • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 205!
30
SERIES - FUEL SYSTEM
Fuel System and Filters • • • • • • • • • • • • • . • • • . . • • • • . • • • • • • • . • • • • • . •
Fuel In.jection Pumps • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Roosa-Master
Fuel
Injectors •••••••••••••••.••..•••.••••••••••••
Electric
Fuel Pump • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Fuel Lines and Throttle Adjustment ••••••••••••.••••••••••••••••••
40
SERIES - HYDRAULICS
Hydraulic Diagrams, Trouble Shooting, Pressure Checks •••••••••••••.•••
Hydraulic Pump • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
I..oad.er Control Valve •••••••••••••••••••••••••••••••••••••••••
Case Backhoe Control Valve ••••••••••••••.•••••••••••••••••••••
Commercial-Shearing Backhoe Control Valve •••••••••••••••••••••••••
ExteDdah.oe
Control Valve ••••••••••••••••••••••••••••••••••.••••
Stabilizer I..ock Valve .. . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydra-Guide • • • • • • • • • • • • • • • • • • . • • • • • • • • • • • • . • • • • • • • • • • • • . • .
Boom I..ockout Valve and Relief Valve ••••••••••••••••••••.•••••••••
I..oader and Backhoe Cylinders • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •••••
NOTE:
Also see Sections
9011
and
9012
for exploded views of hydraulic system.
50
SERIES - STEERING
Hydraulic Diagram, Trouble Shooting, Pressure Check ••••••••.••••••••••
Steering Pump • • • . • . .••••••••••••••••••••••••••••••••••••••
~teering
Valve and Column •••••••••••••••••••••••••••••••••••••
Steering Cylinders • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • . •
Front Axle ................................................ .
60
SERIES - POWER TRAIN
Transmission/ Converter Hydraulic Diagram, Operation and Description •••••.•
Trouble
Shooting an.dTesting •••••••••••••••••••••••••••••••••••.
Forward-Reverse Transmission (Power Shuttle) •••••••••••••••••••••••
Four Speed Mechanical Transmission • • • • • • • • • • • •••••••••••••••••••
Rear Axle . . .
.. . .
. .
. .
. .
. . . . .
.
. . . . . . .
. . .. .
.
.
. . .
.
. . .
. .
.
. .
.
. .
Drive Shaft • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
30iO
3012
3013
3051
3052·
4011
4013
4021
4022
4023
4029
4030
4040
4041
4057
5011
5012
5013
5015
5017
6011
6012
6014
6018
6020
6022
CASE CORPORATION
Burl. Form
9-72595
Nov.
1980
PRINTED
IN U.S.A.
IReprinted I
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SERIES/SECTION SECTION NO.
70 SERIES - BRAKES
Air System Diagrams, Operation, Pressurizing/Depressurizing
the Air System, and Trouble Shooting ••••••••••.••.•..•••.•••••.• 7011
Foot Brakes and Slack Adjuster ...••••••.••.••••••••••••••••••••.• 7013
Air Compressor, Governor, Reservoir, Moisture Ejection Valve •••••••.....• 7014
Brake Valve ................................................ 7015
Brake Actll.ator .............................................. 7016
Parking Brake Control Valve and Quick Release Valve .••••.•.••••••••••.. 7017
Pressure Reducing Valve, Pressure Protection Valve
Double Check Valve, Clutch Cutout Valve, Stoplight Switch •..••••••••••• 7018
Alcohol Evaporator . ................•.......................... 7020,
~O
SERIES - ELECTRICAL
Wiring Diagrams ............................................. 8011
Trouble Shooting and Adjustments • • • • . • • • • • • • . . ••••••••••••••••••. 8012
Batteries .................................................. 8014
Starter and Starter Solenoid ••••••••••••••••••••••••••••••••••••. 8015
Alternator . ................................................. 8016·
90 SERIES - MOUNTED EQUIPMENT
Loader .................................................... 9011
Backh.oe ......•..................................•...•..•.. 9012
ROPS Cab an.d Can.opy .......................••.•....•.•...••... 9019
Front Floor Plate Assembly •••••••••.••••••••••••••••••••••••••• 9028
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Section
11
·GENERAL ENGINE SPECIFICATIONS
680 CK Series C Loaders
I
THE MODEL AND ENGINE SERIAL NUMBER -----------r:,,_,....
1!::~::3.·
IS STAMPED ON A PLATE LOCATED ON THE_
SIDE OF THE ENGINE ABOVE THE CRANK-
ING MOTOR.
DIESEL ENGINES
General
Type ............................................................................. 4 Cylinder, 4 Stroke Cycle, Valve-in-Head
Firing Order ........................................................................................................................ 1-3-4-2
Bore ........................................................................................................................... 4-3/8 Inches
Stroke .............................................................................................................................. 5 Inches
Piston Displacement ........................ ..... ......... .............. ............................. .......... 301 Cubic Inches
Compression Ratio ........................................................................................................... 16.5 to 1
No Load Governed Speed .............................................................................................. 2360 RPM
Rated Engine Speed ...................................................................................................... 2200 RPM
Engine Idling Speed ............................................................................................. 725 to 775 RPM
•valve Tappet Clearance (Exhaust) ....................... (Hot) .020 Inch ........ (Cold) .025 Inch
(Intake) ........................................................... (Hot and Cold) .015 Inch
•Hot Settings Are Made After The Engine Has Operated At Thermostat Controlled Temperature
For At Least Fifteen Minutes.
Piston and Connecting Rods
Rings per Piston ......................................................................................................................... 3
Number of Compression Rings .................................................................................................... 2
Number of Oil Rings .............. ................................ ........... ......... .......... ....... ..................... ......... .. 1
Type Pins ........................................................................................................ Full Floating Type
Type Bearing ................................. Replaceable Precision, Steel Back, Copper-Lead Alloy Liners
Main Bearings
Number of Bearings .................................................................................................................. 5
Type Bearings ............................. Replaceable Precision, Steel Back, Copper-Lead Alloy Liners
Engine Lubricating System
Oil Pressure ............. 45 to 55 Pounds with Engine Warm and Operating at Rated Engine Speed
Type System ................................................................................ Pressure and Spray Circulation
Oil Pump .................................................................. .................................................... Gear Type
Oil Filter ................................................................................................. Full Flow Spin on Type
Fuel System
Fuel Injection Pump .................................................. Robert Bosch, Type PES Multiple Plunger
Pump Timing ................................................ 31 Degrees Before Top Dead Center (Port Closing)
Fuel Injectors .............................................................. Pencil Type (Opening Pressure 2800 PSI)
Fuel Transfer Pump ........................................... Plunger Type, Integral Part of Injection Pump
Governor ............ Variable Speed, Fly-Weight Centrifugal Type, Integral Part of Injection Pump
1st Stage Fuel Filter ............................................................................... Full Flow Spin on Type
2nd Stage Fuel Filter .............................................................................. Full Flow Spin on Type
Rae. Form 9-79921
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CASE CORPORATION
Section
1050
MAINTENANCE
AND
LUBRICATION
Burl. Form 9-72595 Nov. 1973 PRINTED IN U.S.A.
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1050-2
MAINTENANCE CHART
CAUTION: The following chart is based on maximum intervals. If the machine operates
in severe conditions, service more often.
INTERVAL SERVICE INSTRUCTIONS
Run-In: Every Check wheel nut and bolt torque.
Two Hours Front - 170 foot-pounds torque.
Until Stabilized Rear - 220-240 foot-pounds torque.
Check rear axle mounting bolts.
380-460 foot-pounds torque.
Run-In: After Change engine crankcase oil.
First 20 Hours Replace engine oil filter. Section 25.
Check drive belt tension. Section 8016.
Service fuel system. Section 31.
Every 10 Hours Grease loader pivot points.
or Daily - Which-
ever Occurs Grease backhoe pivot points.
First Check engine crankcase oil level.
Check hydraulic oil level.
Check radiator coolant level.
Clean air cleaner dust cup.
Visually inspect transfer pump sedimant
bowl for water.
If
found, drain water from
bowl, first stage filter and fuel tank.
Check machine and ground under it for leaks.
Every 50 Hours Grease front axle pivot.
or Weekly -
Whichever Grease steering cylinders.
Occurs First Grease brake shafts and slack adjusters.
Grease inner Extendahoe dipper.
Check tire pressures.
Every 100 Hours Check battery electrolyte level. Section
8014.
Check drive belt tension. Section 8016.
Every 150 Hours Change engine oil.
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1050-3
INTERVAL SERVICE INSTRUCTIONS
Every 250 Hours Grease driveshaft universals and slip
splines
Grease loader and backhoe control lever
fittings.
Lubricate shuttle control lever.
Check power shuttle/torque converter oil
level.
Check synchromesh transmission oil level.
Check rear axle oil level. Section 6020.
Clean alcohol evaporator filter. Section 7020.
Every 300 Hours Replace engine oil filter. Section 25.
Every 500 Hours Drain deposits from fuel tank.
Change fuel filters. Section 31.
Service electric fuel pump and transfer pump
filters. Section 31.
Repack front wheel bearings.
Check ROPS as indicated. Section 9019.
Every 1000 Change hydraulic reservoir.
Hours or
Yearly, Which- Replace hydraulic oil filter.
ever Occurs
First Clean hydraulic filter by-pass screen.
Change power shuttle/torque converter oil.
Clean power shuttle/torque converter screen.
Change synchromesh transmission oil.
Change rear axle oil. Section 6020.
Clean air compressor cylinder head
(by dealer only).
Every 2000 Disassemble and clean alcohol evaporator.
Hours or (by dealer only). Section 7020,
Yearly, Which-
ever Occurs Lubricate starter motor. Section 8015.
First. Drain, flush and refill cooling system.
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1050-4
INTERVAL SERVICE INSTRUCTIONS
Every 3000 Rebuild or replace air compressor
Hours (by dealer only). Section 7014.
As Required Service air cleaner element when
restriction indicator shows red band. Section 2051.
After wheel has been removed for service
and reinstalled, check wheel nut/bolt torque
every two hours until stabilized.
Replace fire extinguisher shell.
Fill alcohol evaporator with clean
wood alcohol.
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1050-5
FLUIDS AND LUBRICANTS
COMPONENT CAPACITY SPE CIFICA TIONS
U.S. METRIC
Fuel tank 28 gals. 106 liters No. 2 diesel fuel
Engine crankcase oil
With filter change 11 gals. 10,4 liters Engine oil: CD Commercial
class D. (Service DS, Series 3)
MIL-L-45199B
Without filter change Above 32° F. - SAE 30
10° to 50° F. - SAE 20W
Below 40° F. - SAE 1OW
Equipment/ steering
hydraulic system
Approximate
Total System 35 gals. 132,5 liters Case TCH Fluid
Reservoir refill 13. 8 gal. 52,2 liters Alternate oils: Engine oil -
SD-Service class D.
CA-Commercial class A.
(Service MS or DG)
Above
32° F. -
SAE
l0W
Below
32° F. -
SAE 5W
Type C-2 transmission and
hydraulic fluid such as Tenneco
Hytrans Fluid.
Power shuttle/trans-
mission and torque
converter 12 qts. 11,4 liters Case TCH Fluid
Synchromesh 6.4 qts. 6,1 liters Multipurpose gear lubricant
transmission
SAE 90 (APL-GL-4, MIL-L-2105)
Rear axle
Center bowl 27 pts. 12,8 liters Multipurpose gear lubricant
SAE 90 (APL-GL-4, MIL-L-2105)
Planetaries -
each side 3 pts. 1,4 liters
Cooling system 30 qts. 28,4 liters Ethylene glycol and water should
be mixed for prevailing tempera-
tures. Follow antifreeze manufac-
tures specifications.
Alcohol evaporator
1 pt.
0,5 liter Clean wood alcohol
Batteries As required Add colorless, oderless drinking
water.
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