Mountfield 4140H Instructions For Use Manual Download Page 19

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ENGLISH

If the cables are disconnected/

connected in the wrong order, there is a

risk of a short-circuit and damage to the

battery.
If the cables are interchanged, the

generator and the battery will be

damaged.
Tighten the cables securely. Loose

cables 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.

7.8.4 Cleaning

If the battery terminals are coated with oxide, they
should be cleaned. Clean the battery terminals with
a wire brush and lubricate them with terminal
grease.

7.9 AIR FILTER, ENGINE

It is very important that the air filter is

intact and correctly installed. Never

start the engine without the air filter or

if the air filter is defective.

7.9.1 4140H

The filter cartridge (paper filter 22:A) must be
replaced/cleaned after every 25 hours of operation.
The pre-filter (plastic foam filter 22:B) must be
replaced/cleaned after every 25 hours of operation.
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.
2. Dismantle the air filter cover (22:C) by

removing the two screws.

3. Remove the filter package (22:A+B). The pre-

filter is placed over the filter cartridge. Make
sure that no dirt gets into the carburettor.

4. Cover the intake duct (22:D) with a cloth or

similar so that no contaminants enter the
engine. Clean the filter housing internally.

5. Remove the pre-filter from the filter cartridge.
6. Clean the filter cartridge (paper filter) by

tapping it lightly against the flat surface and
blowing through from the inside out using
compressed air. If the filter is very dirty, replace
it.

NOTE! The paper filter must not be rinsed

with water, petrol or other cleaning agents.

This will damage the filter.

7. Wash the pre-filter (plastic foam filter) in liquid

detergent and water. Let it air dry. If the filter is
very dirty, change it.

NOTE! The plastic foam filter insert must

never be oiled.

8. Install the pre-filter on the filter cartridge.
9. Assemble in reverse order.

7.9.2 4155H, 4155H 4WD

The pre-filter (foam filter) must be cleaned/
replaced after 25 hours of operation.
The air filter (paper filter) must be cleaned/
replaced after 100 hours of operation.
NOTE! The filters should be cleaned/replaced
more often if the machine operates on dusty
ground.
Remove/install the air filters as follows.
1. Clean carefully around the air filter cover.
2. Dismantle the air filter cover (23:A) by

removing the two clamps.

3. Dismantle the filter assembly. The pre-filter

(23:C) is placed over the air filter (23:B). Make
sure that no dirt gets into the carburettor. Clean
the air filter housing.

4. Clean the paper filter by tapping it gently

against a flat surface. If the filter is very dirty,
replace it.

5. Clean the pre-filter. If the filter is very dirty,

replace it.

6. Assemble in the reverse order.
Compressed air or petroleum-based solvents such
as kerosene may not be used for cleaning the paper
filter insert. This will damage the filter.

7.10 SPARK PLUG

The spark plug must be replaced every 200 hours
of operation.
Before disconnecting the spark plug, clean around
its mounting.
Spark plug: Champion RC12YC or equivalent.
Electrode distance: 0.75 mm.

7.11 AIR INTAKE (15, 16:T)

The engine is air-cooled. A blocked cooling
system can damage the engine. Clean the engine’s
air intake after 50 hours of operation. More
meticulous cleaning of the cooling system is
carried out during each basic service.