5
MAINTENANCE
General
Every refill clean fuel filter
Every 150 hours wash inlet filter with mild detergent and dry.
Filter must be thoroughly dry before replacing and must not be oiled.
Outlet filter:
Clean and if necessary replace the outlet filter after the first 30 hours of running in.
Every 150 hours clean by blowing air from the inside surface out.
Do not wash or use oil on this filter
If when reassembling the gasket is damaged replace it.
Do not use sealants
Every 300 hours rinse fuel filter in clean fuel.
Every 300 hours clean and check fuel nozzle and nozzle o’ ring for wear. If worn or damaged replace.
Every 500 hours drain the fuel tank and flush it using clean fuel.
Twice per season make sure the Fan is clean. Make sure fan is dry before operating.
Once per season make sure the combustion chamber and head are clean and free from dust. Use compressed air to clean
Electrical
Once per season check that electrodes gap is 2.5mm. Make sure that the transformer and transformer leads are in good condition
Once per season check that the motor fixing bolts are tight and make sure that the fan fixing screw at the fan boss is tight.
Once per season check the limit thermostat junction for continuity.
Once per season check that all electrical connections are tight and in good condition.
Compressor / Air lines/Air Pressure
Every 150 Hours check that all air lines are tight and in good condition.
Once per season check the compressor rotor and blades. When handling make do not drop the units and store them in a clean dry place, as
any dirt/moisture will damage the compressor. If worn replace the rotor and blades (all four blades have to be replaced as a set even though
only one might be damaged). Reassemble making sure that the notch on the blades is towards the centre of the rotor and that there is a 0.5mm
gap between the rotor and the ring as shown in figure below. Re tighten the compressor plate slowly with the motor running following the
numerical sequence shown below.
Once Per season make sure that the operating pressure is as listed in the technical specifications by fitting a pressure gauge in port. If
necessary adjust the pressure by acting on valve and relock using locknut.
Safety
After every major maintenance procedure or at least once per season check heater for correct operating sequence and that all safety
mechanisms are operating correctly (Photocell, limit thermostat etc)
WIRING DIAGRAM
LEGEND
A
ACTIVE
N
NEUTRAL
E
EARTH
CP
CAPACITOR
DS
DIESEL SOLENOID
FT
FAN THERMOSTAT
IT
IGNITION THERMOSTAT
LT
LIMIT THERMOSTAT
M
MAINS INDICATOR
MS
MAIN SWITCH
PC
PHOTOCELL
TS
THERMOSTAT SOCKET
R
RESET
0.5mm
A
1
3
6
2
4
5
