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check the spark of the sparking plug(s) (fig. 23).
Clean the sparking plug after every 100 hours of operation or once a season. For replacing a spark- ing plug, a sparking plug sleeve A and a torsion pin B are provided in the accessories bag.
The engine manufacturer recommends:
The correct distance between the electrodes is 0.75 mm.
COOLING AIR INTAKE - ENGINE
The engine is
Remove the fan casing. Clean the cooling fins on the cylinder, the fan and the rotating protective grille (fig. 24 - 25). Clean more frequently if mow- ing dry grass.
BATTERY
Check the acid level regularly.
The acid level should be between “UPPER “ and “LOWER” on the battery. When adjusting the lev- el, only use distilled water (battery water).
The battery acid is extremely corrosive and can cause burns and injuries to skin and clothing. Always use rubber gloves and glasses (goggles) to protect the eyes. Avoid inhaling any acid va- pour.
Do not incline the battery too much so that the battery acid can run out on to hands and clothing. If this should hap- pen, flush with lots of water.
If the battery terminals are coated with oxide, they should be cleaned. Clean the battery terminals with a wire brush and grease them.
LUBRICATION - CHASSIS
The machine’s articulated steering joint has four grease nipples that should be lubricated with uni- versal grease after every 25 hours of operation (fig. 26).
Please note that the fourth grease nipple is not shown on the picture. It is located on the underside, on the flexible axle’s front bearing.
Lubricate the steering cables and steering chain with universal grease a couple of times per season.
Apply universal grease to the steering chain a cou- ple of times each season. If the steering chains are really dirty, dismantle them, wash them and then grease them once more.
Apply universal grease to all the plastic bearings a couple of times per season.
Apply a coating of engine oil to the tension arm joints a couple of times each season.
Apply a few drops of engine oil to both ends of the throttle control cable a couple of times a season.
Senator:
The transmission is filled with oil (SAE
STEERING CABLES (Senator - President - Royal)
The steering cables should be adjusted for the first time after the machine has been in operation for 2 - 3 hours, and then after every 25 hours of opera- tion.
Put the machine in the
Tension the steering cables by tightening up the nuts that are located on the underside of the articu- lated steering joint (fig. 27). The screws in the ends of the cables should be held firmly during adjust- ment so that the cables are not twisted. Use an ad- justable wrench or similar for this purpose, inserting it in the key handles in the ends of the screws. Tension the cables until they are no longer slack.
Adjust both the nuts the same amount to ensure that the alignment of the steering wheel is not changed.
Once the adjustment is complete, turn the steering wheel as far as it will go in either direction. Check that the chain does not come into contact with the pulley, and that the cables do not become entan- gled with the steering pinions.
Do not tension the steering cables too hard. Other- wise the steering will be heavy and wear and tear on the cables will increase.
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