Hydrotech HDS Serie Mode D'emploi page 23

STORAGE & MAINTENANCE
MAINTENANCE – EVERY 6 MONTHS
REPLACE FUEL FILTER – Follow the instructions specified on the fuel filter
for correct procedure.
MAINTENANCE – EVERY 12 MONTHS
DELIME COIL – A loss in pressure may signify that the coil needs to de
delimed. Do this procedure on a periodic basis.
1. Mix non-caustic deliming powder/solution in float tank according to
package directions.
2. Remove the nozzle from the wand. Place a nylon stocking over the wand
assembly to collect debris, then place the wand assembly into the float
tank.
3. Ensure the trigger gun is open and start the engine to allow water to
circulate through the system. Allow process to continue for 2-4 hours
(Consult deliming agent package directions for exact time).
4. Once process is complete, turn off engine. Drain and clean the float
tank, remove the nylon stocking, and clean the gun and wand
assembly.
5. Flush the entire system with clean, fresh water and place the nozzle in
the wand assembly.
6. Dispose of deliming solution according to local, state, and federal
regulations.
TEST VOLTAGE AND AMP DRAW - Use a voltmeter and amp meter to test
the machine for correct voltage and amperage. If you do not have these
instruments or are unsure of how to perform these tests, this procedure
should be performed by an authorized service technician.
INSPECT BURNER FUEL PUMP INTERNAL FILTER – This procedure should
be performed by an authorized service technician.
CHECK BURNER ELECTRODES - This procedure should be performed by
an authorized service technician.
REPLACE FUEL NOZZLE - This procedure should be performed by an
authorized service technician.
Operator's Manual 23