KAMAZ 5490 Operation Manual page 224

5 Requirements to the assembly
of the details and units of the heater
5.1 The heater is assembled depending on its
working position.
5.2 The heater must be assembled outside the
saloon (the cabin) of the motor vehicle in a horizontal
position with the control unit on top. Admissible
horizontal and vertical misalignments are +10°. The
heater can be fastened to the attachment points from two
sides with the help of two M8 bolts or to the floor or the
ceiling with the help of special brackets. (see figure 4)
The floor fastening of the heater
Fastening of the heater to the side walls
Fig. 4. Admissible assembling positions of the liquid
heater «PRAMOTRONIC 16WD-24»
The ceiling fastening of the heater
5.3 The heater must be installed in the way
that prevents dirt from getting into the intake hole of
the air filter.
5.4 The construction of the heater allows it to be
installed above the head level of the radiator. The main
condition is the admissible level of the heights between
the electric pump and the heater that mustn't exceed 1
meter.
5.5 The electric pump must be placed below the
minimal admissible level of the cooling liquid.
5.6 The connecting hydraulic hookups (hose
pipes) must be laid with pitches and without excessive
bends in which air locks can occur.
5.7 The assembly of the exhaust pipe must be
carried out considering its high temperature in the time
of the heater operation. The exhaust must be withdrawn
outside the motor vehicle which eliminates its getting
into the cabin.
Besides, the outlet of the exhaust pipe mustn't be
directed towards the oncoming flow of the air when the
motor vehicle is moving.
5.8 Assembly of the fuel system of the heater
While assembling the fuel system it's necessary to
keep the following prompts which are preferable:
- the fuel pump must be located near the fuel tank;
- it's preferable to place the axle of the fuel pump closer
to the vertical (see figure 5);
- it's preferable to locate the heater above the maximal
level of fuel in the fuel tank (see figure 6, figure 7);
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