BBW 46 / DBW 46
9 Repair
901
9. Repair
9.1 General
This section describes the repairs that may be performed
on the heater BBW 46/DBW 46 when removed. Any
further disassembly will void the warranty.
For re-assembly only components of the original spare
part kits are to be used.
9.1.1 Work on Components after Disassembly
CAUTION
All sealing elements located between components
disassembled must be discarded and renewed.
9.1.1.1 Cleaning
• All components disassembled must be cleaned with
cleaning spirit and subsequently blown dry with air.
9.1.1.2 Visual Inspection
• Examine all components for damages (cracks,
deformation, wear, etc.) and replace as necessary.
• Examine connectors and wiring for corrosion, loose
contacts, wrong crimping, etc. and repair as
necessary.
• Check terminals for corrosion and contacts for
security and repair as necessary.
9.1.1.3 Remarks on the Replacement of Glow Plugs
Due to the manufacturing process the 12 Volt glow plug
and the 24 Volt glow plug are nearly identical. In order to
avoid the use of the wrong glow plug, the most evident
differences between the plugs are illustrated together with
a table of Volt/Ampere and torque values.
Ident. No. 479594 12 V
157915 24 V
NOTE
Prior to glow plug installation apply high temperature
grease Copaslip or copper paste to thread.
CAUTION
Glow plugs are to be handled with care and should be
removed from their packaging only immediately prior to
installation.
9.1.2 Modification Procedures
NOTE
A continuous design improvement of the heaters is
intended for their optimisation to prevent failures or
malfunctions.
Normally equipment already in operation may be modified
by retrofits using the relevant modification kits.
The following details modifications, which may be easily
performed at low expenditure during repairs:
• replacement of temperature fuse against temperature
limiter with reset (see 9.1.2.1)
3
4
1
2
Volt max. 12 24
Ampere 20 13.3
Torque 30 Nm 30 Nm
Length of sleeve (1) approx. 7 mm approx. 3 mm
Wire gauge (2) 1.1 mm 0.8 mm
Length of filament approx. 20 mm approx. 30 mm
30 mm overall length 64.5 ± 1 64 ± 1
no voltage identification on
12 V type
24 V
(41 Seiten)
(18 Seiten)
(72 Seiten)
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