Case 621 Loader Parts Catalog Manual 8-7041 – PDF DOWNLOAD

Description

Case 621 Loader Parts Catalog Manual 8-7041 – PDF DOWNLOAD

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DESCRIPTION:

Case 621 Loader Parts Catalog Manual 8-7041 – PDF DOWNLOAD

P.I.N. JAK0021701 & After

TABLE OF CONTENTS:

Case 621 Loader Parts Catalog Manual 8-7041 – PDF DOWNLOAD

GENERAL 1
ENGINE 2
FUEL SYSTEM 3
ELECTRICAL 4
TRACKS/STEER. 5
POWER TRAIN 6
BRAKES 7
HYDRAULIC 8
CHASSIS/MTD.EQUIP 9
NUMERICAL INDEX 10

A B
Accelerator and Linkage 3-3 Boot-Cont
Accumulator 8-71 Loader Remote ControL 8-65 – 8-69
Air Rear Harness – operators
Cleaner – engine 2-13 compartment 4-37
Compressor 7-31 7-33 Starter Plunger 4-47
Compressor Govenor – brakes 7-35 Suspension Seat 9-41
Compressor System – brakes 7-13 – 7-19 Box – operators compartment 9-49 9-51 9-85
Conditioning – cab 9-75 – 9-83 Brake
Dryer 7 -37 7-39 Actuator 7-43
Dryer System 7-21 Actuator – parking brake 7-5 7-9
Pressure Protection Valve 7-45 Air Compressor 7-31 7-33
ReservOir – brake 7-17 7-19 Caliper 7-49 7-51
Alternator Fluid Reservoir 7-27
Assembly 4-3 Governor – air compressor 7-35
Mounting 4-49 Master Cylinder 7-43
Auxiliary Steering ; 5-15 Parking 7-3 7-7
Axles – Front Pedals 7-11
Assembly 6-59 – 6-63 6-69 6-71 Pressure Protection Valve 7-45
Carrier 6-71 Pressure Reducing Valve 7-45
Differential 6-69 6-71 Reservoir – brake fluid 7-27
Gear and Pinion 6-69 Switches 7-11
Housing 6-61 Unloading Valve 7-47
Mounting 6-59 Valve 7-41
Pinion Shaft Cage 6-69 Brake System
Planetary 6-61 6-63 Air Compressor and Mounting 7-13 7-15
Yoke – flange 6-69 Air Compressor to Reservoir 7-17 7-19
Axles – Rear Air Dryer 7-21
Assembly 6-63 – 6-71 Air Reservoir to Hydraulic Tank 7-25
Carrier 6-71 Brake Actuator to Wheel Cylinders 7-29
Differentials 6-69 6-71 Brake Fluid Reservoir to Actuators 7-27
Gear and Pinion 6-69 Engine to Air Compressor 7-13 7-15
Housing 6-65 Upper Reservoir to Brake Valve 7-23
Mounting 6-59 Upper Reservoir to Actuators 7-23
Pinion Shaft Cage 6-69 Buckets
Planetary 6-65 6-67 Auxiliary 9-13
Yoke – flange 6-69 Clam 9-13
Standard 9-9 9-11
B Teeth 9-9 – 9-13
Backup Alarm 4-53
Batteries and Cables 4-47 C
Battery Cover 9-25 Cab – operators
Beacon – rotating 4-59 Air Conditioner and Heater 9-69 – 9-83
Belts Blower 4-65
Alternator 2-7 Console Covers 9-57
Compressor – air conditioning 9-81 Doors and Windows 9-61 – 9-65
Fan 2-7 Electrical and Lighting 4-17 – 4-25
Seat 9-31 9-33 Exterior Covers 9-45
Block – engine cylinder 2-35 – 2-41 Filters Vents and Louvers 9-59
Blower – cab 4-65 Glass 9-43 9-61 9-65
Boot Handrail 9-43
Alternator Cable 4-39 Interior Covers 9-49 – 9-57
Brake Actuator 7-43 Mirror – outer 9-47
Bur 8-7041 Issued December 1991 Printed in U S A
1-6 621 Loader
ALPHABETICAL INDEX
c c
Cab – operators;Cont Covers-Cont
Mounting Parts 9-43 Brake Pedal 7-11
Pedestal Covers 9-53 9-55 Cab Exterior 9-45
Rotary Window Lock 9-67 Cab Interior 9-49 – 9-57
Windshield Wipers 4-61 ,4-63 Canopy Exterior 9-45
Wristrest 9-57 Canopy Interior 9-49 – 9-57
Cable – battery 4-47 Condenser – air conditioning 9-75
Calipers – brake 7-49 7-51 Fan Shroud 2-5
Camshaft – engine 2-33 Filter Access – hydraulic 8-3
Canopy Fuse Box 4-19,4-25,4-29,4-35
Console Covers 9-53 9-55 Harness – cab roof 4-17,4-21
Electrical and Lighting 4-27 – 4-35 Harness – canopy roof 4-27 4-31
Interior Covers 9-49 9-51 Horn 4-11
Pedestal Covers 9-55 9-57 Lamp Housing 4-51
ROPS 9-85 Proximity Switches 9-3
Windshield and Wiper Kit 9-87 Radio 4-69
Caps Relay – air conditioning 9-77
Air Cleaner 2-11 Relay Panel 4-41 ,4-43
Coolant Recovery Reservoir 2-9 Starter 4-5
Fuel Tank 3-7 Steering Column – top 5-3 5-5
Hydraulic Reservoir 8-3 Transmission Control Valve 6-25 6-47
Radiator 2-5 Transmission Front Housing 6-9 6-29
Transmission Oil Filler 6-7 Wiper Mounting 4-61,4-63
Chassis – front 9-29 Crankshaft – engine 2-43
Chassis – rear 9-15 Cylinder – master 7-37
Cluster – instrument 4-7 Cylinder Block – engine 2-35 – 2-41
Clutches – see Transmission Cylinder Head – engine 2-31
Cold Start System 4-67 Cylinder Head Covers 2-29
Compressor – air 7-31 7-33 Cylinders – hydraulic
Compressor – air conditioning 9-83 Bucket 8-43
Condenser – air conditioning 9-77 9-79 Clam 8-45
Condenser and Compressor Lines 9-75 Loader Auxiliary 8-45
Connecting Rods – engine 2-47 Loader Lift 8-41
Controls Steering 5-21
Loader Height 9-5
Loader Lift and Dump 8-65 – 8-69 o
Parking Brake 7-5 7-9 Decals 9-89 9-91
Pedal – accelerator 3-3 Differential 6-69 – 6-71
Pedal – brake 7-11 Dipstick – engine 2-37 2-41
Return-to-dig 9-3 Drive Shafts
Speed Selector – transmission 4-13,4-15 Center 6-57
Converter – torque 6-11 6-31 Front 6-55
Cooler Rear 6-57
Engine Oil 2-25 Support Bearing 6-55
Hydraulic Oil 5-13
Transmission Oil 6-3 E
Cores – heating and air conditioning 9-75 Electrical System
Counterweight 9-17 Auxiliary Steering 4-43
Covers Battery Cables 4-47
Air Cleaner – end 2-13 Front Harness – lamps
Axle Pinion Shaft 6-69 and switches 4-11
Battery Compartment 9-25 Front Lamps 4-51
Bur 8-7041 Issued December 1991 Printed in U S A
621 Loader 1-7
ALPHABETICAL INDEX
E F
Electrical System-Cont Filters-Cont
Fuse Box 4-19,4-25,4-29,4-35 Engine Oil 2-25
Instrument Cluster 4-7 Fuel 3-11
Instrument Panel 4-7,4-9 Hydraulic Reservoir 8-3
Operators Compartment 4-13 – 4-35 Hydraulic Oil 8-9
Optional Gauges 4-9 Transmission Oil 6-9,6-29
Pedestal Harness 4-13 ,4-1 5 Flywheel – engine 2-45
Radio 4-69 Flywheel Housing 2-45
Rear Harness – engine Floor Plates and Mats 9-49,9-51
left-hand side 4-39 Frames
Rear Harness – engine Loader Lift 9-7,9-9
right-hand side 4-37 Main – front 9-29
Rear Harness to Relay Panel 4-41 Main – rear 9-15
Rear Lamps 4-53 Fuel
Engine Components Filter 3-11
Alternator 4-3 Injection Nozzles – engine 3-15,3-17
Camshaft 2-33 Injection Pump and Drive – engine 3-13
Crankshaft 2-43 Injection System – engine 3-9
Cylinder Block 2-35 – 2-41 Lines 3-5
Cylinder Head 2-31 Pump 3-13
Cylinder Head Covers 2-29 Tank Sender 3-7
Flywheel and Housing 2-45 Tank 9-15
Fuel Filter 3-11 Fuses 4-19,4-25,4-29,4-35
Fuel Injection System 3-9
Gasket Kits 2-49 G
Injection Nozzles 3-15,3-17 Gaskets
Injection Pump and Drive 3-13 Air Compressor 7-13,7-15
Manifolds 2-21 Engine 2-49
Oil Filter and Cooler 2-25 Equipment and Steering
Oil Pan and Pump 2-27 Pump 8-5
Pistons and Connecting Rods – engine 2-47 Fill Cap – hydraulic oil 8-3
Starter 4-5 Front Wiper 4-61
Thermostat and Housing 2-29 Fuel Sediment Bowl 3-5
Timing Gear Cover 2-19 Starter 4-47
Turbocharger 2-23 Transmission
Turbocharging System 2-21 Control Valve 6-23, 6-43
Valve Mechanism 2-31 Cover Plate 6-5
Water Pump 2-17 Fill Tube 6-7
Engine Mounting 2-3 Housing 6-11 ,6-31
Exhaust System 2-15 Oil Feed Flange 6-13,6-33
Gauges
F Electrical 4-7 ,4-9
Fan Belts 2-7 Sight
Fans Hydraulic Oil 8-3
Alternator 4-3 Radiator Coolant Level 2-5
Cab Blower 4-65 Transmission Oil 6-7
Condenser – air conditioning 9-77 Glass – cab 9-43,9-61 ,9-65
Engine Cooling 2-7 Governor – air compressor 7-35
Fenders 9-27,9-29 Grille 9-23
Filters Guards
Air Cleaner 2-13 Air Dryer 9-15
Cab Air 9-59 Engine Cooling Fan 2-3
Bur 8-7041 Issued December, 1991 Printed in U S A
1-8 621 Loader
ALPHABETICAL INDEX
G K
Guards-Cont Kits
Hose – loader control 8-51 8-57 8-61 Decal 9-91
Radiator 9-23 Gasket – engine 2-49
Return-to-Dig Harness 9-3 Power Beyond – control valve 8-21 – 8-25
Transmission Fill Tube 6-7
L
H Lamps 4-51 – 4-55
Harnesses Lever
Front 4-11 Parking Brake 7-5 7-9
Cab 4-17 – 4-25 Parking Brake Actuator 7-3 7-7
Canopy 4-27 – 4-35 Remote Controls 8-65 – 8-69
Pedestal ” 4-13,4-15
Rear – engine 4-37 – 4-41
Steering Tilt Latch 5-5
Transmission Control 4-13,4-15
Rear – lamp 4-53 Turn Signal 4-13 4-15
Head – cylinder 2-31 Loader
Heater Cable 4-7 Bucket Teeth 9-9 – 9-13
Heaters Buckets and Attachments 9-9 – 9-13
Block – engine 2-35 – 2-41 Hydraulic Circuits
Cab 9-69 – 9-73 Basic 8-5 – 8-9
Hood and Side Doors 9-21 Loader 8-11 – 8-17
Horn – electric 4-11 Remote Control 8-47 – 8-63
Horn Button 5-3 5-5 Return-to-Dig , 9-3
Hoses – radiator 2-5 Lift Frame 9-7
Hoses – See Fuel Lines Brake Assemblies Lubrication Lines – trunnion 9-19
and Hydraulic Circuits
Hydraulic Circuits M
Auxiliary Cylinder to Clam Bucket 8-17 Manifolds 2-21
Auxiliary Steering 5-15 Mirrors 9-43 9-47
Clam Bucket 8-15 Motor
Loader Bucket 8-13 Auxiliary Steering 5-17
Loader Control Valve to Filter 8-7 Blower 4-65
Loader Lift 8-11 Condenser Fan 9-77
Oil Filter to Reservoir 8-9 Windshield Wiper 4-61 ,4-63
Remote Loader Control Valve 8-47 – 8-63 Mounting
Reservoir to Pump and Alternator 4-49
Loader Control Valve 8-5 Engine 2-3
Steering Control Valve to Cylinders 5-11 Starter 4-47
Steering Control Valve to Pump 5-9 Transmission 6-5
Steering Return Lines 5-13 Mufflers 2-15
Transmission 6-3
Hydraulic Reservoir 8-3 N
Nozzle – fuel injection 3-15 3-17
Numerical Index 10-1
Index – numerical 10-1
Indicator – restriction 4-39 o
Induction System – air 2-11 Oil Cooler
Injection System – fuel 3-9 Engine 2-25
Instrument Hydraulic 5-13
Cluster 4-7 Transmission 6-3
Panel 4-7 4-9 Oil Filters
Engine 2-25
Hydraulic 8-9
Bur 8-7041 Issued December 1991 Printed in U S A
621 Loader 1-9
ALPHABETICAL INDEX
o R
Oil Filters-Cont
Transmission 6-9,6-29
Oil Pan – engine 2-27
Rocker Arms – engine 2-31
Rods – connecting 2-47
Rods – push 2-31
Oil Pump – engine 2-27 Rotating Beacon 4-59
P S
Pan – engine oil 2-27 Screen – sand 2-5
Panels Seat Mounting 9-31 ,9-33
Control – environmental 4-7 Seats 9-31 – 9-41
Instrument , 4-7,4-9 Sediment Bowl – fueL 3-5
Radio 4-69 Senders
Relay 4-41 Air Pressure 4-37
Parking Brake 7-3 – 7-9 Engine Oil Pressure 4-37
Parking Brake Actuator 7-5,7-9 Engine Temperature 4-37
Pedal – accelerator 3-3 Fuel Level 3-7
Pedal – brake 7-11 Torque Converter Oil
PedestaL 9-53,9-55 Temperature 6-9
Pistons – engine 2-47 Transmission Oil Temperature 4-37
Pivot – rear frame 9-15 Shroud – radiator 2-5
Power Beyond Kit 8-21 – 8-25 Side Panels – engine 9-21
Precleaner 2-11 Sleeves – piston, engine 2-47
Pulleys Solenoid – starter 4-5
Air Conditioner Compressor 9-81 ,9-83 Starter 4-5
Alternator 4-3 Steering Column 5-3 – 5-7
Fan 2-17 Steering System 5-3 – 5-13
Parking Brake 7-5 Steering Wheel 5-3,5-5
Pump Drive – water 2-17 Steps 9-27
Pumps Switches
Engine Oil 2-27 Accessories 4-7,4-9
Equipment and Steering 8-19 Air Conditioner Thermostat 4-7
Fuel Injection 3-13 Air Pressure 4-37
Fuel – lift 3-11 Blower 4-7
Hydraulic Steering 5-9,8-19 Brake Lamps 7-11
Steering – auxiliary 5-17 Cold Start 4-13,4-15
Transmission Charging 6-13,6-33 Condenser Pressure 9-75
Water – engine 2-17 Coupler – FACT 4-7
Declutch 4-7,4-37,7-11
R Engine Oil Pressure 4-37
Radiator – engine 2-5 Heater 4-7
Radio 4-69 Hydraulic Oil Temperature 4-39
Rectifier – module diode 4-17,4-23,4-27,4-33 Key and Starter 4-7
Regulator – alternator voltage 4-3 Lamps – five postition 4-7
Reservoirs Loader Height Control 4-7
Air 7-17,7-19,7-23,7-25 Low Air 7-17,7-19
Brake Fluid 7-27 Master Disconnect ·4-47
Coolant Recovery 2-9 Parking Brake 7-5,7-9
Fuel 9-15 Pressure – auxiliary steering 4-43
Hydraulic Oil 8-3 Restriction – air cleaner 4-37
Windshield – front wiper 4-61 Return-To-Dig 4-7
Return-to-Dig 9-3 Return-To-Transport 4-7
Rims – wheel 6-73 Rotating Beacon 4-9
Rings – piston, engine 2-47 Stop Lamp 7-11
Bur 8-7041 Issued December, 1991 Printed in U S A
1-10 621 Loader
ALPHABETICAL INDEX
s V
Switches-Cont Valve Mechanism – engine 2-31
Transmission Oil Temperature 4-37 Valve Spools and Detents 8-27 – 8-33
Turn Signal 4-15 Valves
Windshield Washer 4-9 Air Pressure Protection 7-45
Wiper 4-9 Brake Control 7-41
Check
T Air Conditioning 9-75
Tanks Air Dryer 7-37
Air 7-17 – 7-25 Air Reservoir 7-21 7-23
Fuel 9-15 Circuit Relief 8-35 8-37
Hydraulic 8-3 Circuit Relief and
Thermostat – water temperature 2-29 Anticavitation 8-35 8-37
Throttle – engine 3-3 Control
Timing Gear Cover – engine 2-19 Steering 5-5 5-7
Transmission Transmission 6-23 – 6-27 6-45 6-47
Assembly 6-9 – 6-53 7-3 Cylinder Head Exhaust 2-31
Brake – parking 7-3 Cylinder Head Intake 2-31
Charging Pump 6-13 6-33 Delivery – air compressor 7-31
Clutches Delivery – fuel injection 3-13
Forward 6-49 Drain
Fourth 6-53 Air Reservoir – lower
Low 6-49 brake 7-17 7-19
Reverse 6-51 Air Reservoir 7-21
Second 6-51 Hydraulic Reservoir 8-3
Third 6-53 Radiator 2-9
Control Valve 6-25 6-27 6-45 6-47 Flow Control – steering 5-19
Converter Housing 6-11 6-31 Heater Control 9-73
Fill Tube 6-5 Loader Check 8-51 8-57 8-61
Filter – oiL 6-9 6-29 Loader Control
Gear Auxiliary Section 8-33
Idler 6-11 6-31 Circuit Relief/Anti-
Input 6-13 6-33 cavitation 8-35 8-37
Housing 6-9 6-29 Four Spool 8-25
Hydraulic Circuit 6-3 Lift Section 8-29
Hoses – clutch Low Pressure
lubrication 6-15 – 6-19 6-35 – 6-39 Regeneration 8-27
Mounting 6-5 Main Relief – inlet!
Output Shaft and Gear 6-21 6-41 outlet section 8-27
Pump Shaft and Pump Drive 6-13 6-33 Three Spool 8-23
Shaft Tilt Section 8-31
Input 6-13 6-33 Two Spool 8-21
Output 6-13 6-33 Main Relief 8-35 8-37
Sight Gauge 6-7 Pressure Reducing – brake 7-45
Solenoid Valve 6-25 6-45 Pressure Reducing – hydraulic 8-71
Torque Converter 6-11 6-31 Relief
Valve Plates 6-23 6-43 Engine Filter Head 2-25
Trunnion 9-19 Hydraulic Reservoir 7-25
Turbocharger 2-23 Loader Control 8-35 8-37
Turbocharging System 2-21 Remote Control
Turn Signals 4-13,4-15 Auxiliary 8-69
Dual Lever 8-67
Single Lever 8-65
Bur 8-7041 Issued December 1991 Printed in U S A
621 Loader 1-11
ALPHABETICAL INDEX
v
Valves-Cont
Solenoid – starter 4-67
Steering Control 5-5 5-7
Tire – stem 6-73
Unloading – brake system 7-47
Water Shutoff – heater 9-73
W
Water Pump 2-17
Wheel – steering 5-3 5-5
Wheels 6-73
Windows – cab 9-61 9-65
Windshield and Wiper Kit – canopy 9-87
Wiper – windshield 4-61 ,4-63
Wiring Harnesses – see Electrical System

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