Karcher KM 90-60 R Lpg Adv: Maintenance and care

     - 

8



Switch off the appliance and remove 

the ignition key prior to performing any 

cleaning or maintenance tasks on the 

appliance, replacing parts or switching 

over to another function.



Always disconnect the battery when 

working on the electrics.

–

Maintenance work may only be carried 

out by approved customer service out-

lets or experts in this field who are famil-

iar with the respective safety 

regulations. 

–

Mobile appliances used for commercial 

purposes are subject to safety inspec-

tions according to VDE 0701. 

–

Use only roller brushes/ side-brushes 

that are provided with the appliance or 

specified in the Operations Manual.  

The use of other roller brushes/ side-

brushes can affect the safety of the ap-

pliance. 

–

The battery installed in the appliance is 

maintenance-free.

Caution

Risk of damage! Do not clean the appliance 

with a water hose or high-pressure water 

jet (danger of short circuits or other dam-

age).

Do not use aggressive and abrasive clean-

ing agents.



Danger

Risk of injury! Wear dust mask and protec-

tive goggles.



Open the device hood.



Blow through machine with com-

pressed air.



Clean the machine with a damp cloth 

which has been soaked in mild deter-

gent.



Close cover.



Clean the machine with a damp cloth 

which has been soaked in mild deter-

gent.

Observe the inspection checklist!

Note:

 The elapsed-time counter shows the 

timing of the maintenance intervals.

Note:

 Where maintenance is carried out by 

the customer, all service and maintenance 

work must be undertaken by a qualified 

specialist. If required, a specialised Kärch-

er dealer may be contacted at any time.

Note:

 For description, see section on Main-

tenance work.

Daily maintenance:



Check engine oil level.



Check tyre pressure.



Check fill level of hydraulic oil. 



Check function of all operator control el-

ements.



Check function of seat contact switch.

Weekly maintenance:



Check gas pipes.



Check air filter.



Check moving parts for freedom of 

movement.



Check the sealing strips in the sweep-

ing area for position and wear.



Check dust filter and clean filter box, if 

required.

Maintenance to be carried out every 100 

operating hours:



Change engine oil (initial change after 

20 operating hours).



Check spark plug.



Check tension, wear and function of 

drive belts (V-belt and circular belt).



Clean air filter.

Maintenance following wear:



Replace sealing strips.



Replace roller brush.



Replace side brush.

Note:

 In order to safeguard warranty claims, 

all service and maintenance work during the 

warranty period must be carried out by the 

authorised Kärcher Customer Service in ac-

cordance with the maintenance booklet.

Maintenance to be carried out after 20 

operating hours:



Carry out initial inspection.

Maintenance to be carried out every 100 

operating hours



Have maintenance tasks performed ac-

cording to the inspection check list.

Maintenance to be carried out every 200 

operating hours



Have maintenance tasks performed ac-

cording to the inspection check list.

Maintenance to be carried out every 300 

operating hours



Have maintenance tasks performed ac-

cording to the inspection check list.



Danger

Risk of injury!

The engine requires approx. 3-4 seconds 

to come to a standstill once it has been 

switched off. During this time, stay well 

clear of the working area.

Risk of burns!

Allow the machine sufficient time to cool 

down before carrying out any maintenance 

and repair work.

Caution

Please do not release engine oil, fuel oil, 

diesel and petrol into the environment. Pro-

tect the ground and dispose of used oil in 

an environmentally-clean manner.



Park the sweeper on an even surface.



Turn ignition key to "0" and remove it.



Allow device to cool down sufficiently.

For certain maintenance tasks (e.g. change 

of the battery) it is necessary to the remove 

the rear panel first.



Open the device hood.

1 Screws suction blower hose

2 Screws rear panel



Loosen the 2 screws at the suction 

blower hose and pull off the suction 

hose.



Loosen all 6 screws on the left side, 

right side, and at the back of the rear 

panel.



Close cover.

1 Tail panel

2 Battery



Remove the rear panel together with 

the suction blower hose towards the 

back.



When installing the rear panel, ensure 

that the retaining strap is always locat-

ed above the sheet metal bracket.

Maintenance and care

General notes

Cleaning

Cleaning the inside of the machine

External cleaning of the appliance

Maintenance intervals

Maintenance by the customer

Maintenance by Customer Service

Maintenance Works

General notes on safety

Preparation

Remove rear panel

24 EN

     

- 

9

Please observe the following warning notes 

when handling batteries:



Danger

Risk of explosion! Do not put tools or similar 

on the battery, i.e. on the terminal poles 

and cell connectors.



Danger

Risk of injury! Ensure that wounds never 

come into contact with lead. Always clean 

your hands after having worked with batter-

ies.



Danger

Risk of fire and explosion!

–

Smoking and naked flames are strictly 

prohibited. 

–

Rooms where batteries are charged 

must have good ventilation because 

highly explosive gas is emitted during 

charging. 



Danger

Danger of causticization!

–

Rinse thoroughly with lots of clear water 

if acid gets into the eye or comes in con-

tact with the skin.

–

Then consult a doctor immediately.

–

Wash off the acid If it comes in contact 

with the clothes.

–

Change clothing.



Remove the tail panel.

Refer to Chapter "Maintenance tasks/

removing the rear panel".



Insert battery in battery mount.

Note

: Observe the mounting direction 

concerning the polarity of the connection!



Connect pole terminal (red cable) to 

positive pole (+).



Connect pole terminal to negative pole 

(-).

Note:

 Check that the battery pole and pole 

terminals are adequately protected with 

pole grease.



Danger

Risk of injury! Comply with safety regula-

tions on the handling of batteries. Observe 

the directions provided by the manufacturer 

of the charger.



Danger

Charge the battery only with an appropriate 

charger.



Disconnect battery.



Connect positive terminal cable from 

the charger to the positive pole connec-

tion on the battery.



Connect negative terminal cable from 

the charger to the negative pole con-

nection on the battery.



Plug in mains connector and switch on 

charger.

Note:

 When the battery is charged, first re-

move the charger from the mains and then 

disconnect it from the battery.



Remove the tail panel.



Disconnect pole terminal to negative 

pole (-).



Disconnect pole terminal to positive 

pole (-).



Remove the battery from the battery 

holder.



Used batteries are to be disposed ac-

cording to the EC guideline 91/ 157 

EWG or the corresponding national 

regulations in an environment-friendly 

manner.



Park the sweeper on an even surface.



Connect air pressure testing device to 

tyre valve.



Check air pressure and adjust if re-

quired.

For permissible tyre inflation pressure 

see Chapter "Technical specifications".



Park the sweeper on an even surface.



Remove ignition key.



Check stability of ground. Lock the ap-

pliance to ensure that it does not roll off.



Position vehicle jack at the appropriate 

mounting point for the front or rear 

wheel.

Note

Use a suitable commercially available vehi-

cle jack.



Loosen the wheel nuts/wheel bolts by 

about 1 revolution using a suitable tool.

Replace the rear wheel



Raise slightly the waste container on 

the appropriate side and pull it out.



Raise machine using vehicle jack.



Unscrew the wheel nuts/wheel bolts 

and remove them.



Remove wheel.



Have the defective wheel repaired by a 

specialised repair shop.



Place the wheel and screw in the wheel 

nuts/wheel bolts all the way; tighten 

them lightly.



Lower machine using vehicle jack.



Torque the wheel nuts/wheel bolts to 

the required torque.



Push in the waste container and lock it.

Replace the front wheel

1 Front wheel

2 Nut

3 Intake



Raise machine using vehicle jack.



Loosen both screws on the wheel axle 

by 1-2 rotations. If necessary, hold up a 

second wrench to loosen them.



Remove the wheel together with the ax-

le.



Have the defective wheel repaired by a 

specialised repair shop.



Tighten the repaired front wheel with 

the axle and nut to the retainer.



Lower machine using vehicle jack.

Safety notes regarding the batteries

Observe the directions on the 

battery, in the instructions for 

use and in the vehicle operat-

ing instructions!

Wear an eye shield!

Keep away children from acid 

and batteries!

Risk of explosion!

Fire, sparks, open light, and 

smoking not allowed!

Danger of causticization!

First aid!

Warning note!

Disposal!

Do not throw the battery in the 

dustbin!

Installing and connecting the battery

Charging battery

Remove the battery

Check the tyre pressure

Replacing wheel

Tightening torque (Nm)

56 Nm

25 EN

     - 

10 

Danger

Risk of burns on account of hot surfaces!



Allow engine to cool down.



Wait for at least 5 minutes after switch-

ing off the engine before checking the 

engine oil fill level.



Open the device hood.

1 Oil drain hose

2 Oil dipstick



Unscrew and withdraw oil dipstick.



Wipe off and insert the oil dipstick (do 

not turn it in).



Remove the oil dip one more time and 

check the oil level.

–

The oil level must lie between “MIN“ 

and “MAX“ marking.

–

Add motor oil if the oil level is below the 

"MIN" marking.

–

Do not fill oil above the "MAX" marking.



Fill motor oil into the oil fill neck.

Note

: For filling in the motor oil, use ac-

cessories such as a bent funnel tube or 

an oil-change pump 6.491-538.

For oil type refer to Chapter "Technical 

specifications".



Wait at least 5 minutes.



If the engine oil level is correct, screw in 

the oil dipstick.



Danger

Risk of burns due to hot oil!



Allow engine to cool down.



Open the device hood.



Ready a catch bin for appr. 1 litre oil.



Unscrew the locking screw of the oil 

drain hose and drain the oil.



Screw in the locking screw and tighten 

it again.



Unscrew and withdraw oil dipstick.



Fill motor oil into the oil fill neck.

For oil type and filling quantity refer to 

Chapter "Technical specifications".



Wait at least 5 minutes.



Check engine oil level.



If the engine oil level is correct, screw in 

the oil dipstick.



Deliver the old oil to the respective col-

lection centres.



Danger

Risk of burns on account of hot surfaces!



Allow engine to cool down.

1 Wing bolt

2 Air filter housing

3 Filter inlay



Remove the wing screw.



Remove the air filter housing.



Take out the filter inlay.



Clean the interior of the air filter reser-

voir.



Clean or replace the filter inlay. 



Install a new filter inlay.



Fit the air filter casing and secure it by 

means of the butterfly nut.

Caution

Risk of injury! Do not remove the spark plug 

connector manually.

1 Vacuum line

2 Ignition plug 

3 Casing



Pull the vacuum line out of the casing.



Remove the spark plug connector using 

suitable tools/tongs.



Unscrew and clean spark plug.



Screw in cleaned or new spark plug.



Push on spark-plug connector.



Reinsert the vacuum pipe into the cas-

ing.



Danger

Risk of burns on account of hot surfaces!

Caution

This inspection may only be carried out 

when the engine is warm



Open the device hood.

1 Equalising container

2 MAX oil level

3 MIN oil level



Check oil level in the equalisation con-

tainer.



The filling level should be between the 

"Max" and "Min" marking.



If hydraulic oil is missing: 

Remove the lid of the equalising reser-

voir and refill hydraulic oil.

For oil type refer to Chapter "Technical 

specifications".



Close the lid. 



Check tyre pressure.



The side-brushes lift up.



Drive sweeper on to a smooth, even 

surface covered with a visible layer of 

dust or chalk.



Lower side-brushes and allow them to 

briefly rotate.



The side-brushes lift up.



Drive machine backwards.



Park the sweeper on an even surface.



Check sweeping mirror.

The width of the sweeping track should lie 

between 40-50 mm.

Note:

 The side brush floating mounting ad-

justs the sweeping track as the bristles 

wear down. The side brush must be re-

placed if it becomes too worn.



Park the sweeper on an even surface.



Set programme switch to step 1 (driv-

ing). Side brushes lift up.



Turn ignition key to "0" and remove it.



Loosen 3 fastening screws on the un-

derside.



Remove the wiper blade.



Clip new side brushes on to driver and 

screw on.

Check engine oil level and top up, if re-

quired

Change the engine oil

Change the air filter

Clean or replace the spark plug

Check hydraulic oil level and refill hy-

draulic oil

Checking the sweeping mirror of the 

side-brushes

Replacing side brush

26 EN

     

- 

11



Park the sweeper on an even surface.



Set programme switch to step 1 (driv-

ing). Roller brush is raised.



Turn ignition key to "0" and remove it.



Secure the machine with wheel 

chock(s) to prevent it from rolling away.



Remove belts or cords from roller 

brush.

Note:

 The side brush floating mounting of 

the roller brush adjusts the sweeping track 

as the bristles wear down. The roller brush 

must be replaced if it becomes too worn.



Set programme switch to step 1 (driv-

ing). The side brush and roller brush are 

raised.



Drive sweeper on to a smooth, even 

surface covered with a visible layer of 

dust or chalk.



Lower roller brush and allow it to briefly 

rotate.



Raise roller brush.



Press pedal which raises bulk waste 

flap and keep pressed.



Drive machine backwards.

The sweeping track should have an even rectan-

gular shape which is between 50 and 70 mm 

wide.

Replacement is due if a visible deteriora-

tion in sweeping performance caused by 

bristle wear is evident.



Park the sweeper on an even surface.



Set programme switch to step 1 (driv-

ing). Roller brush is raised.



Turn ignition key to "0" and remove it.



Secure the machine with wheel 

chock(s) to prevent it from rolling away.



Raise slightly the waste container on 

the left side and pull it out.



Loosen the fastening screw on the left 

side-panel.



Remove side panel.



Hook the draw spring out.

1 Fastening screw of the under-pressure 

can

2 Fastening nut of the bulk waste flap

3 Screw of the roller brush crank



Unscrew the fastening screws of the 

vacuum socket and release the lever.



Turn the fastening nut of the bulk waste 

flap and unhook the bulk waste flap.



Unscrew and withdraw bolt on the roller 

brush swinging arm.



Push the roller brush cover backwards 

and remove it. 



Pull out roller brush.



Push new roller brush into the roller 

brush housing and onto the drive pin.

Note:

 When installing the new roller 

brush, ensure correct positioning of the 

bristle assembly.

Installation position of roller brush in direction of 

travel



Position roller brush cover.



Fit the fastening screws and nuts. 



Hook the draw spring in.



Screw on side panel.



Push in the waste containers on both 

the sides and lock them.



Park the sweeper on an even surface.



Set programme switch to step 1 (driv-

ing). Roller brush is raised.



Turn ignition key to "0" and remove it.



Secure the machine with wheel 

chock(s) to prevent it from rolling away.



Raise slightly the waste containers on 

both sides and pull them out.



Open the fastening screws of the side 

panels on both sides.



Remove side panels.



Front sealing strip



Loosen retaining nuts for the front seal-

ing strip (1) slightly (to replace, un-

screw).



Screw on new sealing strip without fully 

tightening the nuts.



Adjust sealing strip.



Set the distance between the sealing 

strip and the floor so that the bottom 

edge trails behind at a distance of be-

tween 10-15 mm.



Tighten nuts.



Rubber strip



If worn, replace.



Unscrew retaining nuts for the rubber 

strip (2).



Screw on new rubber strip.



Rear sealing strip



Set the distance between the sealing 

strip and the floor so that the bottom 

edge trails behind at a distance of be-

tween 5 and 10 mm.



If worn, replace.



Unscrew retaining nuts for rear sealing 

strip (3).



Screw on new sealing strip.

Checking roller brush

Check the sweeping mirror of the 

sweeping roller

Replacing roller brush

Adjusting and replacing sealing strips

27 EN

     - 

12



Side sealing strips



Slightly loosen retaining nuts for the 

side sealing strip (to replace, unscrew).



Screw on new sealing strip without fully 

tightening the nuts.



To set the floor clearance, insert a 

sheet with a thickness of between 1 and 

3 mm under the sealing strip.



Adjust sealing strip.



Tighten nuts.



Screw on side panels.



Push in the waste containers on both 

the sides and lock them.

몇

Warning

Wear a dust mask when working around 

the dust filter. Observe safety regulations 

on the handling of fine particles.

Note

: Wait at least 1 minute before remov-

ing the dust filter so that the dust can settle.



Open the device hood.

1 Screws (2x)

2 Lid with cleaning device

3 Support

4 Dust filter (flat-fold filter)

5 Suction blower



Loosen the screws.



Fold the lid up and secure it by means 

of the support.



Take out the dust filter.



Check dust filter, clean or replace



Insert cleaned or new dust filter. 



Close the lid. 



Tighten the screws. 



Check hoses at the suction blower for 

leaks and tight seating from time to 

time.



Turn ignition key to "0" and remove it.



Danger

The engine requires approx. 3-4 seconds 

to come to a standstill once it has been 

switched off. During this time, stay well 

clear of the working area.



Open the device hood.



Check the V-belt axle drive (1) and V-

belt suction blower (2) for tension, wear 

and damage.

V-belt axle drive (1) and V-belt suction blower (2)



Check drive belt (3) for tension, wear 

and damage.

Drive belt (3)



Check drive belt (4) for tension, wear 

and damage.

Drive belt (4)



Check circular belt side brush (5) for 

tension, wear and damage.

Circular belt side brush (5)



Check V-belt of the roller brush drive (6) 

for tension, wear and damage.



Tighten the V-belt at the screw if neces-

sary.

V-belt sweeping drive (6) and screw (7)

The drive control/electronic system is in-

stalled behind the front panel. To replace a 

fuse, the front panel must be removed.



Loosen the front panel screws.



Remove front panel.



Replace defective fuses.

Note:

 The assignment of fuses is indi-

cated on the inside of the panel. Only 

use fuses with identical safety ratings.



Replace front panel.

Check/replace dust filter

Check suction blower

Checking drive belt

Replacing fuses of drive control/ elec-

tronic system

28 EN