Air Filter; Spark Plug; Cutting Deck - Stiga PRIMO Instrucciones De Uso

EN
• During installation. First connect the red cable
to the battery's positive terminal (+). Then con-
nect the black cable to the battery's negative ter-
minal (-).
If the cables are disconnected/connect-
ed in the wrong order, there is a risk of
a short-circuit and damage to the bat-
tery.
If the cables are interchanged, the gen-
erator and the battery will be damaged.
Tighten the cables securely. Loose ca-
bles can cause a fire.
The engine must never be driven with
the battery disconnected. There is a risk
of serious damage to the generator and
the electrical system.
6.11.4 Cleaning
If the battery terminals are coated with oxide, they
should be cleaned. Clean the battery terminals with
a wire brush and grease them using terminal
grease.

6.12 AIR FILTER

The pre-filter (foam filter) (19:G) must be cleaned/
replaced every 25 operating hours.
The pre-filter (paper filter) (19:F) must be cleaned/
replaced every 100 operating hours.
NOTE! Clean/replace the filter more often if the
machine operates in dusty conditions.
Remove/install the air filters as follows.
1. Clean carefully around the air filter housing
(18:E).
2. Remove the air filter cover by releasing the two
clamps at the rear edge of the cover.
3. Remove the filters. The pre-filter is located far
in towards the engine. Make sure that no dirt
gets into the carburettor. Clean the air filter
housing.
4. Clean the paper filter by gently tapping it
against a flat surface. If the filter is very dirty,
change it.
5. Clean the pre-filter. If the filter is very dirty,
change it.
6. Assemble in reverse order.
Do not use compressed air or petroleum based sol-
vents such as kerosene to clean the paper filter in-
sert. This will damage the filter.
The paper filter insert must not be oiled.

6.13 SPARK PLUG

The spark plug(s) must be replaced after 200 hours
of operation.
Before disconnecting the spark plug, clean around
its mounting.
Spark plug: Champion RC12YC or equivalent.
Electrode distance: 0.75 mm.
60
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ENGLISH
6.14 ENGINE'S COOLING AIR IN-
The engine is air-cooled. A blocked cooling sys-
tem can damage the engine. Clean the engine's
cooling air intake every 50 operating hours. A
more thorough clean of the cooling system is car-
ried out at each basic service.
6.15 FUSE
In the event of electrical faults, check/replace the
fuse, 20 A. See fig. 20.
If the fault persists, contact an authorised work-
shop for repair.

6.16 CUTTING DECK

6.16.1 Safety
To reduce the risk of accidental injury in the event
of a collision and to protect important parts in the
cutting deck, a force limiter is integrated as fol-
lows.
• Shear bolts between blades and blade bar.
• Torque limiting between gear wheels and blade
• Possibility of positive drive belt slipping on the
6.16.2 Dismantling
It is easier to carry out certain maintenance work if
the cutting deck is removed from the machine. Re-
move the cutting deck as follows:
1. Set the maximum cutting height.
2. Pull out the belt idler (21:H) and push the belt
3. Force the belt off the machine's pulley.
4. Raise the deck and unhook the lift cable's
5. Remove the locking screws (23:L) from both
6. Unhook the deck from the front axles and move
6.16.3 Assembly
Install the cutting deck as follows:
1. Hook the deck over the front axles.
2. Install the locking screws (23:L) on both sides.
3. Set the maximum cutting height.
4. Raise the deck and hook on the lift cable (22:K).
5. Install the belt (21:J) onto the pulley.
6. Pull out the belt idler (21:H) and place it on the
TAKE (7:U)
shaft.
plastic gear wheels.
(21:J) down by the side of the belt idler to re-
lease the belt tension.
spring (22:K).
sides.
the deck forward. See fig. 24.
See fig. 24.
outside of the belt so that the belt tensions.