Bobcat 444, 500 & EARLY 600 (Supplement) Service Manual 6556520 (6-12) – PDF DOWNLOAD

Description

Bobcat 444, 500 & EARLY 600 (Supplement) Service Manual 6556520 (6-12) – PDF DOWNLOAD

FILE DETAILS:

Bobcat 444, 500 & EARLY 600 (Supplement) Service Manual 6556520 (6-12) – PDF DOWNLOAD

Language : English
Pages : 102
Downloadable : Yes
File Type : PDF

DESCRIPTION:

Bobcat 444, 500 & EARLY 600 (Supplement) Service Manual 6556520 (6-12) – PDF DOWNLOAD

FOREWORD:

• This Service Supplement provides additional information necessary for servicing early model
  Bobcat loader.
• Use this supplement in conjunction with the 600 thru 611 Service Manual (#6556276), to provide complete servicing instruction for the 444, 500 and early 600 Bobcat loaders.

DESCRIPTION OF HYDRAULIC CIRCUIT:

• This machine is equipped with full–flow, positive–pressure lubrication to the
  clutches and drive mechanism. The oil is drawn from the reservoir through a filter
  into the hydraulic pump. The pump forces it through the control valves and
  clutches, back into the reservoir. This occurs as long as the hydraulic controls are
  in neutral.
• Figure 3 shows the main frame hydraulic circuit of your Bobcat Loader. The arrows
  show the direction of flow of hydraulic fluid.
• When a control is actuated, the oil is diverted into one end of the selected
  cylinders. Oil flows from the other end of the cylinders back to the valve bank,
  through the clutches and into the reservoir. When the valve is returned to neutral,
  oil is trapped in the cylinder, holding the load in place, and fluid again passes from
  the pump, through the valves and clutches and back to the reservoir.
• When a cylinder reaches the limit of its stroke, or when an attempt is made to lift
  more than the machine’s rated capacity, a relief valve allows the oil to by–pass the
  over–loaded circuit and return to the reservoir. This valve should be set between
  1700 and 1750 PSI at full engine RPM.

TABLE OF CONTENTS:

Bobcat 444, 500 & EARLY 600 (Supplement) Service Manual 6556520 (6-12) – PDF DOWNLOAD

MAINTENANCE SAFETY 3
CONTENTS 5
FOREWORD 5
HYDRAULIC SYSTEM 7
HYDRAULIC SYSTEM 9
CHANGING AND ADDING HYDRAULIC OIL 9
DRAINING CONDENSATION 9
DESCRIPTION OF HYDRAULIC CIRCUIT 9
OIL FILTRATION 9
TUBLINES, HOSES, FITTING 10
37° Flare Connection 10
Straight Thread O-Ring Fitting (Elbow, Adapter, Etc ) 10
Pipe Thread Fittings 10
Tubelines and Hoses 10
HYDRAULIC SYSTEM (444 & 500) 11
CHANGING HYDRAULIC OIL FILTER ELEMENT 11
CHECKING THE OVERALL CONDITION OF HYDRAULIC SYSTEM 14
CHANGING MASTER RELIEF SETTING 16
CARTRIDGE RELIEF PRESSURE SETTING 16
VARIABLE SPEED VALVE 16
VARIABLE SPEED CHECK (LOCK) VALVE 17
CLUTCH PRESSURE RELIEF VALVE 18
CONTROL VALVE SEAL REPLACEMENT 18
HYDRAULIC PUMP REPAIR (Webster Pump) 21
HYDRAULIC CYLINDER REPAIR 23
HYDRAULIC PUMP ALIGNMENT (M–500 and M–444 Gasoline or LP Gas) 24
ELECTRICAL SYSTEM 25
ALTERNATOR CHARGE SYSTEM (500, 600) 27
Installation of Equipment Solenoids 29
Rectifier–Regulator Mounting 29
Flywheel Alternator System 29
Servicing the Alternator System 30
CHECKING THE RECTIFIER AND REGULATOR 33
STATOR CHECKS 34
ENGINE SERVICE 39
WISCONSIN ENGINE SERVICE (M–600) 41
RESTORING COMPRESSION 41
GOVERNOR ADJUSTMENT 41
STORAGE OF ENGINES 41
RETURNING STORED ENGINE TO SERVICE 42
CARBURETOR ADJUSTMENT 42
CARBURETOR RECONDITIONING 42
LPG CARBURETOR SERVICE 46
VAPORIZER – PRIMARY REGULATOR SERVICE 47
SECONDARY REGULATOR SERVICE 49
LP FUEL FILTER LOCK 51
IGNITION TIMING 51
DISTRIBUTOR MAINTENANCE 52
SPARK PLUG 52
HIGH TEMPERATURE SAFETY SWITCH 52
ENGINE RECONDITIONING 53
ACCESSORIES 53
FLYWHEEL 53
AIR SHROUDING 53
CARBURETOR & MANIFOLDS 53
CYLINDER HEAD 53
GEAR COVER 54
CAMSHAFT GEAR 54
IDLER GEAR AND SHAFT 54
OIL PAN 54
OIL PUMP 54
PISTONS AND CONNECTING RODS 54
PISTON RINGS 55
CYLINDER BLOCKS 55
VALVES & SEAT INSERTS 56
CRANKSHAFT 57
CAMSHAFT 57
VALVE TAPPETS 57
TECHNICAL DATA (Wisconsin) 58
FITS & CLEARANCES 58
TORQUE VALUES 58
Untitled 59
ONAN ENGINE SERVICE (444) 63
ENGINE OIL 63
CRANKCASE BREATHER 63
GOVERNOR & SPEED CONTROL 63
CARBURETOR ADJUSTMENT 63
CARBURETOR RECONDITIONING (Gasoline) 63
FUEL PUMP 64
CARBURETOR RECONDITIONING (LP Gas) 64
VAPORIZER – PRIMARY REGULATOR SERVICE 65
VALVE SYSTEM 66
TAPPET ADJUSTMENT 66
IGNITION TIMING 67
SPARK PLUGS 67
ENGINE RECONDITIONING 69
TECHNICAL DATA (Onan) 74
FITS & CLEARANCES 74
TORQUE VALUES 74
KOHLER ENGINE SERVICE (500) 77
ENGINE OIL 77
COMPRESSION CHECK 77
CRANKCASE BREATHER 77
GOVERNOR & SPEED CONTROL 77
CARBURETOR ADJUSTMENT 78
CARBURETOR RECONDITIONING 78
ELECTRIC FUEL PUMP SERVICE 81
CARBURETOR ADJUSTMENTS (LPG) 81
CARBURETOR RECONDITIONING (LP Gas) 82
VAPORIZER–PRIMARY REGULATOR SERVICE 84
IGNITION TIMING 85
USING TIMING LIGHT 85
MAGNETO SERVICE 85
ELECTRICAL SYSTEM 86
ENGINE RECONDITIONING 89
TECHNICAL DATA (Kohler) 97
RUNNING CLEARANCES 97
OIL PUMP 97
MAGNETO IGNITION 97
TORQUE VALUES 98
SERVICE MANUAL REVISIONS 99
600-01 99
600-02 101

IMAGES PREVIEW OF THE MANUAL:

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PLEASE NOTE:

• This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
• Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.

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