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10• MAINTENANCE
• Clean the electrodes (a) by rubbing them with a wire brush to remove
any deposits of scale.
• Check that the porcelain has not cracked and that the electrode is not
excessively worn. If necessary, replace the spark plug.
• Check the electrode gap (b) and adjust if necessary. The gap must be
between 0.65 and 0.76 mm. To set the gap, adjust the outer electrode
only: use spark plug adjusting feelers.
• Put the spark plug in place and tighten to a torque load of 20 nm.
• Then reconnect the spark plug cable.
10•1•8 CATALYSER (HVHP - HVHPX - BVHP - BVHPX
models)
• The HVHP, HVHPX, BVHP and BVHPX exhaust silencer has a
catalyser.
• To preserve performance in reducing pollutant emissions, replace
the exhaust silencer after between 300 and 400 hours of operation.
10•2
MAINTENANCE OF THE HY-
DRAULIC TRANSMISSION
• For all work on the transmission system, stop the engine and remove
the ignition key. Use the circuit-breaker to turn off the electric
supply. Close the hand brake.
• Check regularly, before each use, the level of the oil contained in the
hydraulic tank situated under the central cover.
• Before each use of the machine, check the forward/backward pedal
system is working properly. The pedals must come back to the
neutral (starting) position when they are released.
10•2•1 CHECK THE OIL LEVEL IN THE HY-
DRAULIC TANK (BEFORE EACH USE)
• Stop the engine before you start the check.
• Park the machine on a horizontal surface.
• Open the engine cover (paragraph 9•2 page 23).
The oil level must be kept between the [MINI] and [MAXI] marks on
the tank side at all times (a picture 12).
REMARK: If, after you have topped up with oil, the level drops
again, have the circuit checked by your dealer.
• If necessary, top up with new HV46 quality hydraulic oil. ETESIA
recommends SHELL Tellus T46, ETESIA ref. 29592 (2 litre can).
• Topping up, like lling, can only be done through the male tting (c
picture 12).
• Use a ltering unit with a 25 µm lter ref. 29977.
• Connect the female tting of the ltering unit onto the male tting on
the hydraulic tank after removing the protective cover and cleaning
the male tting on the tank.
• Remove the air lter cartridge to avoid any oil returns (b picture 12).
• Ensure that the ltering unit on/off switch is on OFF.
• Connect the wiring of the ltering unit, rst the positive terminal,
then the negative terminal, to the machine’s battery.
• Dip the suction pipe (with no tting on the end) into the oil to be
transferred.
• Switch on the unit.
• As soon as the level required is reached:
- stop the unit
- disconnect the unit from the battery (negative terminal rst)
- disconnect the hydraulic hose and put back the air lter cartridge.
10•2•2 REPLACEMENT OF THE HYDRAULIC
OIL FILTER
(picture 14a)
BPHP2 - BPHPX2
After initial 20 hour servicing, replacement is necessary every 250
hours.
HVHP - HVHPX - BVHP - BVHPX
After initial 10 hour servicing, replacement is necessary every 200
hours.
• Unscrew the cartridge in the anti-clock sense.
• Before tting the new lter, oil its seal with clean oil.
• Screw in the new cartridge by hand (degree of ltration 25 µm abso-
lute) (reference ETESIA 29490) until the seal is tight. Then turn add
another 1/2 to 3/4 turn.
• Start the engine and leave to run for a few minutes.
• Stop the engine and check there are no leaks from the cartridge and
check the oil level. Top up if necessary.
10•2•3 REPLACEMENT OF THE HYDRAULIC
TANK AIR FILTER
BPHP2 - BPHPX2
Replacement is necessary every 250 hours.
HVHP - HVHPX - BVHP - BVHPX
Replacement is necessary every 200 hours.
• The hydraulic tank air lter is accessible by opening the central cover
(b picture 12).
• Clean the edge and base of the lter.
• Unscrew it anticlockwise.
• Screw back in and tighten by hand the new 10 µm lter (ETESIA
ref. 38562).
10•2•4 EMPTYING THE HYDRAULIC TANK
(every 2500 hours)
CAUTION! This operation must only be done if you have a
lter ring unit tted with a 25 µm lter cartridge, ref. 29977.
If you do not have the tools or the skills necessary, please contact your
dealer.
DRAIN THE TANK
• Remove the cutter housing (paragraph 9•4 page 23).
• Place a recipient with a capacity of at least 25 litres under the tank.
• Using an Allen key, unscrew the plug situated on the bottom of the
tank.
• Leave to drain thoroughly before screwing the plug back in.
• Change the tank’s air and oil lters (10•2•2 and 10•2•3).
Fill the tank with HV46 type oil using the ltering unit (paragraph
10•2•1). Etesia recommends SHELL Tellus T 46, ref. 29592 (2 litre
can).