Proheat M80 Manuale di Servizio Scaricare il pdf (Pagina 73)

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PROHEAT G-I PCM SERVICE MANUAL

4-42

Problems with the PROHEAT and/or vehicle application that are not

specifically defined but are observed during the operation of the PROHEAT

and or vehicle coolant system. These fall into three categories:

1. Fuel Supply/Combustion. Go to page 4-3 to page 4-25, Steps 1 to 7.

• Smoke from the exhaust

• Excessive raw diesel odor.

• Backfiring and coughing during the combustion process.

• Low heat output.

2. Coolant system. Go to page 4-27, Steps 1 and 2.

• Short combustion cycles. The PROHEAT is turning on and off at very

short intervals.

• Low heat output in the vehicle system. Go to page 4-3 to page 4-25,

Steps 1 to 7.

OPERATIONAL PROBLEMS4.3

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 85 86

G-I PCM SERVICE MANUAL 1
CONTENTS 2
5.0 MAINTENANCE 3
SAFETYA 4
SAFETY CONSIDERATIONS 5
INTRODUCTION 6
PROHEAT CONTROL 8
MODULE (PCM) TYPE 8
COMPRESSOR TYPED 10
MODEL DESCRIPTIONSE 12
Figure E-2 13
TECHNICAL 14
SPECIFICATIONS 14
PHYSICAL1.1 15
ELECTRICAL1.2 17
TORQUE SPECIFICATIONS1.3 18
Ignition Module 19
Blower Housing 19
Temperature Sensor 19
Burner Head/Heat Exchanger 19
PRINCIPLE OF 22
OPERATION 22
Heat Exchanger: 23
Coolant Pump: 23
Temperature Sensor 1: 23
Temperature Sensor 2: 23
REQUIRED 24
FOR REVERSE 24
COOLANT FLOW 24
MODES OF OPERATION2.2 25
PREHEAT MODE (ENGINE OFF) 26
MAINTENANCE TOOLS3.0 30
TROUBLESHOOTING 32
AND REPAIR 32
4.1 SYSTEM AND COMPONENT 33
DIAGNOSTICS 33
START Diagnostic Code 1 34
Fuel and fuel supply – Check: 35
START: Fuel System Step 1 35
PROHEAT fuel filter – Check: 36
START: Fuel System Step 2 36
START: Fuel System Step 3 37
Fuel Shut-off Valve – Check: 39
START: Fuel System Step 4 39
G-I PCM IGNITION 40
MODULE CONNECTION 40
Fuel Regulator – Check: 42
START: Fuel System Step 5 42
Air Compressor – Check: 43
START: Fuel System Step 6 43
Fuel Supply Pump – Check: 48
START: Fuel System Step 7 48
Ignition Module – Check: 51
START: Ignition System 51
Flame Sensor – Check: 53
START: G-I PCM Flame 53
Sensor Circuit 53
Motor or G-I PCM – Check: 55
START: Motor and/or 55
G-I PCM fault 55
FLAME OUT Diagnostic Code 2 57
COOLANT FLOW: Step 2 58
COOLANT FLOW: Step 1 58
RED (+) BLACK (-) 59
OVERHEAT Diagnostic Code 4 60
VOLTAGE Diagnostic Code 5 60
FLAME FAULT Diagnostic Code 6 62
TEMP SENSOR T1: Step 2 64
G-I PCM COOLANT PUMP 67
CONNECTION 67
MOTOR Diagnostic Code 12 68
G-I PCM AUXILIARY OUTPUT 69
COMPONENT MECHANICAL 70
OR ELECTRICAL PROBLEMS 70
OPERATIONAL PROBLEMS4.3 73
MAINTENANCE5.0 74
ANNUAL MAINTENANCE5.2 75
Figure 5-3: Fuel Filter 76
Figure 5-4: Fuel Nozzle 76
Figure 5-5: Air Filter 77
REPLACEMENT PARTS AND 78
TEST EQUIPMENT 78
ROTARY VANE COMPRESSOR 79
PROHEAT WARRANTY6.0 84
Proheat Serial Number: 86
Installation Date: 86

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Proheat M80 Manuale di Servizio Pagina 73

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