Installing The Metering Pump - Truma Combi D Mode D'emploi / Instructions De Montage

Installing the metering pump

Install the dosing pump (adjusted to high altitudes) in the fuel
system parallel to the standard dosing pump.
Always install metering pump with the pressure side (delivery
direction) sloping upwards.
Protect metering pump from heat (max. operating temper-
ature 40 °C), therefore do not install in the vicinity of sound
mufflers and exhaust pipes.
Metering pump installation position
Attaching the metering pump
Attach metering pump (1) to
vehicle in a suitable location
using bracket (2) and holder (3
– included in scope of delivery)
Integration of the dosage pump into the fuel
system
4 = Dosing pump (standard)
5 = Dosing pump (adjusted to high altitudes, marked with
green sticker)
6
2
90°
3
4
Detail B
5
Pressure side
Detail A
Intake side
Detail A – Intake side
9
6
9
8
7
6 = Y-piece Ø 5 mm
7 = Reducer part 5 x 3.5 mm
8 = Fuel line Ø 4 x 1 mm
9 = Clamps Ø 10 mm
10 = Fuel hose 3.5 x 3 mm (l = 40 mm)
Detail B – Pressure side
1
9
4
8 = Fuel line Ø 4 x 1 mm
9 = Clamps, Ø 10 mm
10 = Fuel line 3.5 x 3 mm (l = 40 mm)
11 = Y-piece Ø 4 mm
Electrical connection
Disconnect power before making electrical connection.
Route connecting cables in such a way that they cannot
chafe. Please also use leadthrough bushings or edge protec-
tion profiles where there are sharp edges such as metal panel
leadthroughs. The connecting cables must not be attached to
or come into contact with metal surfaces, the exhaust duct or
warm air ducts.
9
10
8
9
8
7
7
9
9
8
10
8
10
9
10
5
4
5
9
10
11
9