KAMAZ 5490, Operation Manual

Page: 218 / 327

2
3 Safety requirements and warnings
3.1 Assembling and maintenance of the heater
must be carried out by organizations and individuals
having the producer’s license.
3.2 The plug-in of the heater must be carried out
by the two-wired scheme directly to the accumulator
battery regardless the motor vehicle “weight”.
3.3 It’s not allowed to connect the heater to the
electric circuit of a vehicle lacking the accumulator battery.
3.4 The safety measures provided by the
regulations of work with electric circuit and a motor
vehicle fuel system must be taken when assembling and
disassembling the heater.
3.5 The heater must be disconnected from the
accumulator battery when electric welding works on the
motor vehicle or repair work on the heater are carried out.
3.6 It’s not allowed to lay a fuel tube inside the
cabin of a motor vehicle.
3.7 The heater can be used only for the purposes
stated in this instruction manual.
3.8 A motor vehicle outfitted with the heater must
be supplied with a fire-extinguisher.
3.9 It’s not allowed to use the heater in the places
where highly inflammable fumes or great amount of dust
can be formed and accumulated.
3.10 It’s not allowed to install the heater without a
spark extinguisher on motor vehicles transporting
explosive and highly inflammable liquids.
3.11 It’s not allowed to use the heater when the
vehicle is parked in enclosed spaces (in a garage, in a
workshop, etc.) to prevent poisoning by the exhaust.
3.12 When fuelling the motor vehicle the heater
must be turned off.
3.13 To prevent the deformation of plastic parts,
boiling of the heat carrier inside the heater and the
emergency of the heat sensors it’s not allowed to
disconnect the sockets and cut off the heater from the
electric power supply until the end of the blow-off cycle.
3.14 The heater can be restarted not earlier than in
5-10 seconds after its turning off.
4 The structure and operation of the heater
4.1 The heater works independently from the
motor vehicle engine.
It is the main element in the heating system of
engine cooling liquid of a motor vehicle.
4.2 The heater is incorporated into the engine
liquid cooling (heating) system together with the spare
pump, which generates the circulation of the cooling
liquid through the heater, the engine and the cabin heater.
4.3 The fuel is supplied to the heater by a special
piston pump through the system of intake and feeding
hydraulic hookups.
4.4 Starting and switching of the heater are carried
out «manually» with the help of the control panel.
Power is supplied from the accumulator battery of
the motor vehicle and is connected with the control
panel, electric pump and fuel pump by connecting cords.
The electric circuit diagram is shown in figure 1.