KAMAZ 5490 Operation Manual page 230

It's allowed to install the fuel pump on the frame
of the heater.
5.9 The control panel assembly
The control panel is installed in the cabin or
saloon of the motor vehicle on the dash panel in the place
specified by the manufacturing plant, or this place is
specified by the specialized organizations carrying out
the assembly. The dimensions of the hole for the control
panel locating are shown in figure 10.
Fig. 10 The control panel matching site
5.10 Assembly of the electric system of the heater
The assembly of the wire harnesses of the heater
is to be carried out according to the electric diagram (see
figure 1). While assembling
opportunity of their heating, deformation and shifting
during the motor vehicle operation must be excluded.
Harnesses are to be fastened to the parts of the motor
vehicle with plastic clips.
Attention: When assembly is carried out the safety
device must be dismantled
the harnesses the
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6 Checkup of the heater after the assembly
6.1 When assembling the following must be
secured:
- air tightness of the fuel system and tightening of the
clips;
- reliability of electrical connection.
6.2 Mount the protective device, buttons 2 and 3
on the control panel will glow.
6.3 Firmly turn the potentiometer for setting the
temperature on the control panel clockwise.
Attention!
1 At the first startup of the heater the fuel
system must be filled with fuel up to the incoming
connecting pipe of the heater. If the booster pump is
missing the startup of the heater must be repeated
several times until the fuel system is filled.
2 It's necessary to remember that each time the
heater is turned on and doesn't start working at the
first attempt the control unit automatically turns on
the heater for the repeated startup attempt with the
following blowing for five minutes.
6.4 After the combustion chamber of the heater
comes to the maximal mode (about 5 minutes after the
startup), the potentiometer for setting the temperature in
the cabin on the control panel must be slowly turned
counterclockwise and the necessary temperature must be
set. The further work of the heater is described in chapter
4 of this instruction manual.