Webasto HL 18 B Manuals

Manuals and User Guides for Webasto HL 18 B. We have 1 Webasto HL 18 B manual available for free PDF download: Workshop Handbook

Webasto HL 18 B Workshop Handbook

Webasto HL 18 B Workshop Handbook (73 pages)

Brand: Webasto | Category: Heater | Size: 11 MB

Table of Contents

Avant-Propos
2
Table of Contents
3
Technical Data
5
Technical Data of Heaters
5
Permissible Diameters and Lengths of Connecting Pipes and Ducts
6
Summary of Heater Variants
6
General Description
7
Air Heaters HL 18 B/D
7
Air Heaters Air Top 18
8
Initial Operation
9
Lnltlal Operation
9
General Notes
9
Bleeding the Fuel Supply System
9
Combustionrcheck
9
Troubleshooting
10
Description of Operation
13
Sequence of Operation (Heaters with Control Unit SG 1559)
13
Switching on the Heater
13
Combustion Operation
13
Start after Control Idle
13
Switching off the Heater
13
Switch-Off Upon Failure
13
Sequence of Operation (Heaters with Control Unit SG 1561 GT and Control Unit SG 1561 GS, Order No. 24189A)
14
Switching on the Heater
14
Combustion Operation
14
Start after Control Idle
15
Start of Part-Load Operation (Only for HL 18 D)
15
Start of Full-Load Operation
15
Switching off the Heater
16
Switch-Off Upon Failure
16
Components
17
Heater Components
17
Electric Motor (Drive) with Combustion Air Fan
17
Combustion Air Fan
18
Combustion Air Adjustment Screw (Grubscrew)
18
Fuel Connection Complete with Fleece (Evaporator)
19
Glow Plug (Not in Air Top!)
20
Glow Pin (Air Top Only)
20
Flame Detector
21
Overheat Switch and Safety Switch
22
Heat Exchanger
24
Burner Tube
24
Fuel System Components
25
Dosing Pump
25
Fuel Tap
26
Fuel Filter
26
Fuel Tank Tap
26
Exhaust and Combustion Air System Components
28
Pressure Balancer (Exhaust/Suction Feedthrough)
28
Exhaust Silencer
28
Flexible Exhaust Pipe
28
Combustion Air Pipe
28
Electrical System Components
29
Control Unit
29
Wiring Harness
32
N (Option)
33
Glow Plug Dropping Resistor 0.27 (Option)
33
Resistor (Part-Load)
33
Pulsing Glow Relay (Option)
34
Electrical Connection
34
Repair and Disassembly Instructions
35
General Important Notes for Repairs
35
Removal and Installation of Heater
35
Work on the Vehicle
35
Heater Test Run
35
Tools and Test Equipment
36
Hose Clamp
36
Test Unit
36
Glow Plug Wrench
36
Test Equipment
37
Performing Modifications
37
Conversion T~ a Modified Heat Exchanger with Housing
37
Conversion of Control Unit SG 1559 to Control Unit SG 1561 Gtwith Integral Glow Pulsing
41
Disassembly Instructions
47
Maintenance
48
Test and Maintenance Procedures
48
Functional Test
48
Spares Provisioning
48
Wiring Diagrams
69

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