Care And Maintenance; Maintenance Intervals - Kärcher HD 9/100 De Skid EU Bedienungsanleitung

Storage
If the device is being stored for 6 months or longer, the
following measures must also be carried out.
1. Carry out the maintenance procedure that is due
next.
2. Flush the radiator and fill it with long life coolant.
3. Remove any traces of oil and grease from the out-
side of the engine.
4. Either completely empty the fuel tank or fill it com-
pletely.
5. Lubricate the engine speed lever.
6. Disconnect the battery cable from the positive termi-
nal of the battery.
7. Check the battery acid level and top it up with dis-
tilled water if necessary.
8. Protect the device against the ingress of water and
dust.
9. Charge the battery on a monthly basis during stor-
age.
10. Let the engine tick over every 4 to 6 months without
starting it.
Restarting after storage
1. Check the engine (see "Initial startup").
2. Establish the water connection for the high-pressure
pump.
3. Vent the low pressure system of the high-pressure
pump.
4. To supply the engine with oil:
a Let the engine tick over for 15 seconds without
adding any fuel.
b Wait 30 seconds.
c Carry out this procedure a total of 4 times.
5. Fill with fuel.
6. Start the engine.
7. Operate the engine at idle speed for 15 minutes.
When doing this, check for fuel, coolant and oil
leaks.
8. Observe the control displays to ensure they are
working correctly.
9. Check the oil pressure.
10. Avoid prolonged periods of idle or maximum speed
for the time remaining of the first operating hour.

Care and maintenance

DANGER
The device can start unintentionally.
The high-pressure water jet or impelled parts can cause
injuries.
Before starting any maintenance work, set the key-op-
erated switch to "0" and actuate the trigger of the high-
pressure gun until the device is depressurised.
Remove the key from the key-operated switch.
Danger of burns
The engine, especially the muffler, gets hot during oper-
ation. Touching hot parts of the engine can result in
burns.
Do not start any maintenance work until the engine has
cooled down sufficiently.
Risk of scalding
Hot engine coolant and steam can escape when the ra-
diator cap is opened and cause severe scalding injuries.
Do not open the radiator cap until the engine has cooled
down.
Tighten the radiator cap firmly.
ATTENTION
Risk of damage
Water ingress will damage the engine.
Protect the air filter and electrical components before
cleaning the engine with water or steam.
Risk of damage
Incorrect cleaning processes will damage the engine.
Do not use a wire brush to clean the engine.
Do not clean the engine with a water jet exceeding 1.9
bar.
Note
Old oil may only be disposed of at designated collection
points. Please dispose of any old oil at these locations.
Polluting the environment with old oil is punishable by
law.
Safety inspection/maintenance contract
You can agree on regular safety inspections or close a
maintenance contract with your dealer. Please seek ad-
vice on this.

Maintenance intervals

Each time before use
1. Carry out the following checks on the engine every
day prior to start-up.
a Check for oil leaks.
b Check for fuel leaks.
c Check for coolant leaks.
d Check for damage or missing components.
18
e Check for loose, missing, or damaged connecting
elements.
f Check the wiring for cracks, abrasion, and dam-
aged or corroded connections.
g Check the hoses for cracks, abrasion, and dam-
aged, loose, or corroded holders.
h Check the radiator for contamination and, if nec-
essary, clean the cooling fins with compressed air
(maximum 0.19 MPa).
i Check the water separator for water and contam-
ination; drain the water separator if necessary
(see "Maintenance work").
j Check the engine oil level (see "Maintenance
work").
k Check the coolant level (see "Maintenance
work").
2. Check the high-pressure hose.
a The operating pressure of the hose must match
the operating pressure of the device. (The oper-
ating pressure is specified on the hose screw
connection.)
b The connection threads of the hose and device
must match.
c The surface of the hose must be undamaged.
d The hose screw connections must be free of cor-
rosion, the sealing surfaces and threads must be
clean and undamaged.
e The O-rings must be present and undamaged.
f The hose should not be older than 6 years. (The
date of manufacture is specified on the hose
screw connection.)
Immediately replace a damaged high-pressure
hose.
3. Check the high-pressure pump oil level at the oil lev-
el display.
Contact Customer Service immediately if the oil is
milky (water in the oil).
4. Check the high-pressure pump for leaks.
The device should only be started up if the faults identi-
fied during the checks have been rectified.
Weekly
1. Check the water filter element.
2. Check the high-pressure pump for unusual noises.
3. Clean the device as necessary.
4. Check the age of the high-pressure hoses. Do not
use high-pressure hoses that are more than 6 years
old.
After the first 50 operating hours
1. Change the oil in the high-pressure pump.
2. Check the tightening torque of the toothed belt ten-
sioning pulley; nominal value: 150 Nm.
Illustration I
Toothed belt tensioning pulley
1
3. Check the tightening torque of the screws on the
pump head (see "Maintenance work").
4. Check the tension of the V-belt on the radiator fan
(see "Maintenance work").
5. Only applicable for the Advanced version: Check
the tension of the V-belt in the advance pressure
pump (see "Maintenance work").
6. Change the oil and the engine oil filter in the com-
bustion engine (see "Maintenance work").
Every 50 operating hours
ATTENTION
Risk of damage
Never clean the radiator with a wire brush. Do not ex-
ceed the water pressure specified below.
1. Check the radiator for contamination and, if neces-
sary, clean the cooling fins with compressed air
(maximum 0.19 MPa).
2. Check the battery.
3. Check the water separator for water and contamina-
tion; drain the water separator if necessary (see
"Maintenance work").
Every 250 operating hours
1. Check the tension of the V-belt on the radiator fan
(see "Maintenance work").
2. Change the oil and the engine oil filter in the com-
bustion engine (see "Maintenance work").
3. Empty the fuel tank (see "Maintenance work").
4. Clean or replace the air filter unit.
5. Only applicable for the Advanced version: Check
the tension of the V-belt in the advance pressure
pump (see "Maintenance work").
Every 3 months
1. Check the device for damage.
2. Clean the engine air intake.
3. Pay attention to any unusual vibrations.
4. Check that all screws are tight.
5. Check the condition of the electrical cable.
6. Check the motor seals.
English
Every 6 months
1. Check the high-pressure hoses.
a Inspect the surface of the hose for damage (abra-
sion points, cuts, cracks).
b Inspect the hose for deformations (layer separa-
tion, blisters, crushing, kinking).
c Inspect the hose screw connections for deforma-
tion and corrosion
d Check that the hose is tightly seated in the hose
screw connections.
Every 500 operating hours, at least annually
1. Have the device serviced by Customer Service.
2. Change the oil of the high-pressure pump (see
"Maintenance work").
3. Clean the water separator (see "Maintenance
work").
4. Replace the fuel filter (see "Maintenance work").
5. Replace the air filter insert (see "Maintenance
work").
Every 1000 operating hours or annually
1. Drain the coolant from the combustion engine, flush
the cooling system and add new coolant.
2. Have the valve clearance on the combustion engine
adjusted by the Yanmar service team.
Every 1500 operating hours
1. Have an engine service carried out by the Yanmar
service team.
Every 2000 operating hours or every 2 years
1. Replace the hoses for the fuel system and cooling
system.
Every 2000 operating hours
1. Have the valve seats in the combustion engine re-
ground by the Yanmar service team if necessary.
Maintenance work for the high-pressure
pump
Changing oil
WARNING
Risk of scalding
The oil in the high-pressure pump becomes very hot
and cause scalding if touched.
Do not unscrew the oil drain plug while the device is in
operation.
Allow the device to cool down before changing the oil.
Note
See the "Technical data" chapter for the oil volume and
type
1. Unscrew the oil drain plug.
Illustration L
Oil filler neck
1
Oil level gauge
2
Oil drain plug
3
2. Drain the oil into a suitable collection container.
3. Screw in the oil drain plug.
4. Unscrew the cap of the oil filler neck.
5. Slowly fill with new oil until the level is in the middle
of the oil level display.
The air bubbles must escape.
6. Screw on the cap of the oil filler neck.
Check the tightening torque of the pump screws
Description Number
Cylinder fastening 1...18
Pump head fastening 19...22
Illustration M
1. Check all screws for corrosion. Have corroded
screws replaced by the Customer Service depart-
ment.
2. Set the torque wrench to the value specified in the
table above.
3. Tighten the screws in the sequence 1...22 specified
above until the torque wrench clicks to indicate that
the correct torque has been reached.
Cleaning the filter
On delivery, the filter is equipped with a filter fleece that
retains particles with sizes of 100 µm or larger.
A filter fleece that retains particles with sizes of 50 µm
or larger is required when using a rotary nozzle.
Filter fleece Order number
100 µm 6.414-074.0
50 µm 6.414-073.0
1. Close the water inlet.
2. Unscrew the filter casing.
3. Replace the soiled filter fleece with a new filter
fleece.
Tighten-
ing torque
40 Nm
35 Nm