HAKO Hako-Citymaster 1800 TDI User manual

Instruction Manual
Hako-Citymaster 1800 TDI (1199.00/1199.02)

Table of Contents Please note positively that Hako
cannot accept any legal claims
which are referred to the explana-
tions given in this manual.
In case of any possibly necessary
repairs, please make sure that
only genuine spare parts are
installed, since only genuine spare
parts will give you the assurance
that your machine will be reliably
ready to operate at all times.
We reserve the right for technical
improvements.
Valid from
Chassis No. 1199.00.2.0101.1
Hako-Werke GmbH
D-23843 Bad Oldesloe
Hamburger Str. 209-239
Phone [phone]
Proper use ...............................................43
Acceptance of the machine .....................43
Service plan for VW-Diesel engine..........44
Notes on warranty ...................................44
Operating principle ..................................44
Special safety instruction
for use on public roads .......................... 45
Road traffic regulations ..........................45
General Safety Provisions.......................45
Briefing.....................................................48
First operation..........................................48
Dirt hopper jackbar ..................................48
Fuel..........................................................48
Engine oil / hydraulic oil...........................48
Operation / controls ..............................49
How to run the
Hako-Citymaster 1800 TDI ......................57
Stop machine, shut down engine ............58
Sweeping.................................................58
Lift hopper................................................59
Cleaning work after sweeping .................59
Maintenance work .................................60
Engine......................................................60
Check engine oil level .............................60
Fill engine oil............................................61
Change engine oil....................................61
Engine oil filter.........................................61
Fuel system .............................................61
Air cleaner ...............................................61
Engine and hydraulic cooling system......62
Cooling air intake.....................................62
Travel drive assembly..............................63
Towing......................................................63
Selector valve ..........................................63
Bypass valve .......................................... 63
Change hydraulic oil and filter ............... 63
Gauge outlets ......................................... 65
Hub motors in rear wheels ..................... 65
Return suction strainer ........................... 64
Hydraulic system of power steering,
hopper lift ............................................... 65
and suction turbine
Power steering ....................................... 65
Water spray system ............................... 66
Drain water from recirculating tank and
hopper .................................................... 67
Sweeping attachment ............................. 67
Suction mouth ........................................ 67
Dirt hopper / suction turbine ................... 68
Service brake ......................................... 68
Parking brake ......................................... 68
Electric system / fuses ........................... 68
Battery .................................................... 69
Wheels ................................................... 69
Wheelchange ......................................... 69
Hauling ................................................... 69
Lubrication scheme ................................ 70
Hand suction hose (optional) ................. 71
Additional water pump (optional) ........... 71
Specifications ....................................... 72
Maintenance work ................................ 75
Maintenance schedule ........................... 76
CE Declaration of Conformity ................ 79
Maintenance document .......................... 80

The present Owner's Manual deals
with the Hako-Citymaster 1800 TDI and
in-cludes information about the optio-
nal handheld suction hose and extra
water pump. For more options, as for
example the oxidative catalyst, A/C
installation, high-pressure water jet
installation, please go by the separate
Owner's Manuals issued for these
items.
Proper use
This sweeper has been designed for
sweeping roads, parking grounds,
foot-paths and similar areas and for
collecting dry and moist residues nor-
mally found in such places under nor-
mal road and weather conditions.
Using the machine beyond this scope
of application will be deemed improper
use; the manufacturer cannot be held
liable for consequential damage; such
use would be at the owner's sole risk.
The machine must not be used for col-
lecting poisonous, flammable or other
substances harzardous to health.
Congratulations!
You decided for the dependable and
comfortable Hako-Citymaster 1800
TDI. This vacuum sweeper was desi-
gned under particular consideration of
aspects of our environment for use on
roads, footpaths and in public areas.
Performance and service life of your
machine are a direct function of proper
operation, servicing and maintenance.
The instruction manual is located
behind the driver’s seat.
Before first operation read these
instructions carefully. The manual will
inform you in detail about operation
of the machine and provides valuable
information about service and mainten-
ance with “Caution“ and the symbol
as used in this manual identifies
items relevant to safety. Please make
sure to pass all safety instructions to
other operators.
Prior to first operation of this machine,
read the manual carefully and strictly
comply with the instructions contained.
Please also refer to the General
Safety Provisions (page 45).
43
The term of proper use also includes
operation, maintenance and repair
work to be performed in compliance
with the manufacturer's specifications.
The sweeper may be used, serviced
and repaired by personnel only that is
familiar with the machine and aware of
possible hazards involved.
Accident Prevention Regulations, and
all other aspects of safety and work-
ing medicine will have to be complied
with, this also includes pertinent road
traffic regulations.
If modifications to the machine are
made in absence of the manufacturer-
's prior consent, the latter cannot be
held liable for damage resulting from
such unauthorized modification.
Acceptance
of the machine
Upon receipt, check machine for pos-
sible damage in transit. For refund of
such damage have Deutsche Bahn
AG or your freight forwarder confirm
such damage; mail notification and
waybill to:
Hako-Werke GmbH
Hamburger Str. 209-239
D-23843 Bad Oldesloe

Operating principle
1 hydromotor-powered plate brushes
sweep garbage
2 into a full-width intake duct,
running on rollers
3 a water spray system as part of the
sweeping brushes effectively redu-
ces formation of dust
4 the water spray system is fed from
a big-size water tank
5 through a suction duct with over-
dimensoned cross section,
6 a multi-stage suction turbine routes
garbage into a
7 stainless steel hopper
8 water contained in the garbage is
drained from the hopper through a
screen and is returned into
9 the recirculating water tank
J this water is reused, i.e. distributed
by a spray nozzle in the suction
duct, to bind dust
K for dumping, this hopper swings
back by hydraulic power.
Dumping height and width fit stan-
dard garbage containers.
Service plan for
VW-Diesel engine
The service plan is packed with your
machine. In your own interest make
sure that this service plan is filled out
at acceptance. Warranty for this VW
Diesel engine under the Terms of
Warranty as stipulated on this service
plan will commence the day the
machine is delivered to the customer.
Notes on warranty
The terms of the sales contract apply.
Damages are not subject to warranty if
they are due to non-compliance with
the maintenance and service provi-
sions. Any maintenance work has to
be performed by an authorized Hako
service work-shop and confirmed in
the “maintenance certificate“ which is
the warranty document. The following
is exluded from warranty: natural wear
and tear after overload and damages
caused by inexpert handling and
unauthorized modification of the
machine. Moreover, any claim for war-
ranty cannot be accepted if damages
at the machine are caused by fitting of
parts or accessories without Hako's
prior and explicit consent or by non-
compliance with the maintenance
instructions.
44

Special safety instruction
for use on public roads
When slowing down the Citymaster
1800 TDI on public roads by releasing
the accelator pedal, equally actuate
the brake pedal. This activation is
mandatory for safety reasons since
then the stop lights alight to inform the
following road users thatthe vehicle
slows down.
Road traffic regulations
Before using the machine on public
roads, make sure to comply with natio-
nal traffic regulation, in particular with
regard to type approval, driver’s licen-
se mandatory, arrangement of warning
plates or stickers when using a rota-
ting beacon.
General Safety Provisions
Apart from the instructions contained
in this manual, the general safety
instructions and accident prevention
regulations, as imposed by law, e.g.
BGV D29 (former VBG 12), will have
to be complied with. Do not put the
Owner's Manual aside without readin-
git, even if you used similar sweepers
before. Take time to read it now and
save time later.
Prior to operation make yourself fami-
liar with all systems and controls and
"where they arrive". Avoid the mess of
having to read this book while trying to
run the machine. The instraction
manuell has to be kept onboard
The Hako-Citymaster 1800 TDI may
be run by skilled personnel only; such
personnel will have to have evidenced
their qualification for running the ma-
chine to the owner or his authorized
representative; operators explicitly will
have to be instructed by the owner or
his authorized representative to use
the machine.
the instraction manuell has to be
kept onboard
never leave machine unattended
with the engine running;
the operator must not leave the
machine unless having stopped the
engine and secured the machine
against unintended movement,
having closed the parking brake and
removed the ignition key;
to secure machine against unautho-
rized use, remove key and lock
door;
the operator has to run the machine
within its design limits; when driving
the machine account for local condi-
tions and watch out for other per-
sons, in particular for children.
when doing transportation rides,
make sure dirt hopper is in low posi-
tion; lift hopper for dumping only;
before lifting, operator has
to make sure that the area behind
the hopper is clear of persons or
objects; place machine on solid and
level ground before lifting the hop-
per;
keep clear of hazard zone;
warning and instruction stickers
attached to machine contain im-por-
tant information about safe
operation;
45

before commencing a cleaning or
servicing job on the machine, make
sure engine does not run and key is
removed;
Only stop the engine from a high
speed range in case of malfunctions
and only after the suction turbine
has been turned off.
use appropriate tools for servicing,
maintenance and adjusting work;
as far as aspects of safety are con-
cerned, spares will have to be at
least of the same quality as genuine
parts;
when working under the lifted hop-
per, this item has to be secured with
a jackbar; make sure hopper jak-
kbar is installed;
in compliance with para. 57 BGV
D29, the Hako-Citymaster 1800 TDI
has to be serviced in regular inter-
vals and inspected for safe condi-
tion not less than once a year;
before commencing any work on
the electric system, disconnect bat-
tery (negative lead);
never use open flames when hand-
ling batteries, in particular when
checking the electrolyte level;
chargerooms should be adequately
ventilated.
spilled (straight) battery acid must
not get into the sewer before having
been neutralized. Comply with regu-
lations imposed by law and local
regulations;
never run the Hako-Citymaster
1800 TDI in absence of proper safe-
ty installations;
a second person may be transport-
ed only if machine is equipped with
a second seat; transport of other
persons is not admitted;
do not exceed the admissible
weight and admissible axle load
limits (even with reduced loading);
the implements have to be attached
at the indicated points;
use of a mobile phone will require to
stop machine; an external an-tenna
is mandatory;
before remedying a clogged suction
hose, turn the engine off and wait
until the suction turbine stands still.
Replace illegible or missing warning
and instruction labels.
Caution! To avoid contusion hazard
maintain adequate safety clearance
when lifting and lowering the hop-
per;
before commencing work, the ope-
rator has to make sure the machine
and its accessories are in proper
and safe condition. Machines with
known defects must not be used;
the machine my be started and
stopped by the driver seated only;
before starting engine, stop all drive
systems.
avoid filling fuel tanks while engine
is running; do not smoke or handle
open flames when filling fuel tanks
or working in the vicinity of the fuel
system
a good approach to prevention of
accidents is proper maintenance of
the machine;
46

Safety information on retrofitting
electric or electronic systems or
components
The machine features electronic com-
ponents that might be influenced by
electromagnetic radiation from other
systems. Such influence might in-
volve personal hazards if the following
safety information is not complied with.
When performing retrofit actions, i.e.
installation of electric and electronic
systems and/or components it will be
the operator's sole responsibility to
determine whether such installations
interfere with the vehicle's standard
electronic circuits or other compo-
nents. Electric and electronic compo-
nents so installed will have to comply
with EMC-Rule 89/336/EWG and its
revisions and be marked CE.
When installing mobile communication
systems (e.g. transceivers, mobile
phones) the following requirements
have to be met in addition:
only items approved by the national
authorities (e.g. in Germany a BZT
license) may be installed:
the items have to be installed in a
firm place
use of handheld or mobile systems
inside the vehicle will require use of
an external antenna:
transmitter module is to be installed
in adequate distance from the vehi-
cle's electronic circuits;
for antenna installation it will be im-
portant to establish good contact
between antenna ground and vehi-
cle ground.
47
Caution! Collect oil and fuels and
dispose Pollution of ground water! Do
not let fuel, hydraulic oil other media
penetrate the soil. Wipe away spilled
substances. Do not check or maintain
the machine with the engine running!
Collect operating fluids and filter and
provide for disposal of these media in
accordance with the regulations impo-
sed by law.

2
1
First operation
Before first operation of the Hako
Citymaster, check the following:
Dirt hopper
jackbar
A jackbar (2) is located at the right
behind the driver's cabin. It extends
automatically when the hopper is
lifted. Before lowering the hopper,
swing this jackbar to a vertical posi-
tion and lock in place with lever (1).
Otherwise, this jackbar would get
stuck under the hopper.
Fuel
Avoid filling fuel tanks while engine is
running; do not smoke or handle open
flames when filling fuel tanks or work-
ing in the vicinity of the fuel system.
Fuel tank is located on the left, behind
the driver's cabin. The filler neck is
accessible and the filler cap lockable
by key.
Note : Make sure to wipe away spilled
fuel and tightly close the cap.
1 lock
2 jackbar
Briefing
Detailed briefing is recommend before
first operation of the machine.
First operation of the Hako-Citymaster
1800 TDI has to be performed by a
service engineer of your local Hako-
distributor. Right away after shipping
the machine, we advise your distribu-
tor: He will contact you to make a date
for briefing lessons.
48
Engine oil
Engine oil has been filled in the facto-
ry. Check oil level (refer to page 60).
Note: use clean oil and fuel only; store
oil and fuel in approved and closed
containers only.
Hydraulic oil
Hydraulic oil has been filled in the
factory. For reasons of safety check oil
level with gauge glass; for this check
lift hopper and secure with jackbar.
Black floater has to float in the upper
area of the gauge glass.

1 speed indicator
2 multi-function display
3 pilot lights
4 Summer/winter switchover
Operation
Controls
1 Speed indicator*
indicating the current travelling
speed
* instead of speed indicator, installa-
tion of tachograph
49
2 multi-function display
displays the following functions in
a 2-line display when depressing
the following keys
engine rpm fuel level
coolant time
temp.
hourmeter hydraulic
oil temp.
distance void
traveled
3
Pilot lights
Second directional
flasher
light GREEN when a trailer or rear
implement is attached and the
directional flasher is working.
Hopper down
this RED light signals hop-
per up.
Caution: do not attempt to drive the
machine when RED light is ON
(except just before dumping).
Directional flasher
lights GREEN when
directional
flasher is working
km
I

overload
lights RED when hopper is
an overload situation
Hydraulic oil level
lights RED when hydraulic
oil level is low, the same
time a buzzer sounds.
Note: float in gauge glass on hydraulic
tank in low position
(red) brake fluid indication lamp
Alights in case of insufficient brake
fluid level.
Immediately contact the
nearest qualified brake
service centre to have the
brake system checked.
Creep speed
lights GREEN when creep
speed is selected.
Note: will light during transportation
ride only, not in sweeping mode
Forward travel
lights GREEN when for-
ward speed is selected
Travel mode indicator
lights yellow when trave-
ling mode has not been
released.
Note : Travelling mode released only
after the driver is correctly seated
(seat contact switch has reponded),
the lamp then extinguishes.
The pilot lamp also servers as
monitouring device for correct
functioning of the seat contact switch.
If the lamp does not light after driver
has left the seat, check the seat
contact switch system.
50
Parking brake
lights RED when parking
brake is closed
Hi-beam
lights BLUE when head-
lights are in hi-beam mode
High speed
lights GREEN when high
speed is selected.
Note: will light during transportation
ride only, not in sweeping mode.
reverse travel
lights GREEN when
reverse speed is selected
Pilot light
red

Hydraulic oil filter
monitor
to monitor condition of
hydraulic oil filter.
Note: this YELLOW light appearing
during operation, stop machine
immediately.
Air filter indicator
serves as monitoring devi-
ce for the air filter. The
lamps lights yellow if clea-
ning filter is required.
Note : Correctly clean air filter or
replace.
Note : in case of high engine output
the pilot lamp may alight shortly.
Cleaning/replacing according to
instructions is required only if the lamp
lights permanently.
If the pilot lamp lights permanently
at 3000 rpm when the machine is
standing, proceed to cleaning
/replacing of the air cleaner according
to the instructions.
Battery charge
lights RED when battery
has to be charged. Has to
light when ignition is
turned ON and dim when
engine fires
Oil pressure
lights RED if engine oil
pressure is low. Has to
light when ignition is
turned ON and dim when
engine fires
Cooling water/coolant
level indicator
serves as monitoring
device of the filling level in
the compensation tank.
The lamp flashes red when filling level
is insufficient.
Note : Flashing stops only after
resetting ignition.
51
Pre-glowing indicator
lights YELLOW when
actuating the starter
switch. Start cranking
engine when this
light dims
Note : Flashing lamp signals error of
the engine controller.
Coolant temperature
lights RED when coolant
temperature overshoots
limit

1
Working floodlight
(optional) or winter
service (optional)
turns the searchlight ON /OFF or
the winter service implements such as
front broom Yellow insert for winter
service
2
rotating beacon
turns the rotating beacon
ON/OFF
3
Air conditioning
(optional)
turns the A/C ON/OFF.
Please refer to the
documents of the air
conditioning system for further
information.
Functional switches:
1 Working floodlight (optional)
or winter service (optional)
2 Rotating beacon
3 Air conditioning (optional)
4 Engine sped regulation
5 Suction turbine / sweeping mode
6 Suction mouth / accessory mount
7 Lighting
8 Hazard warning flasher
9 Heater fan
10 Additional water pump (optional)
11 Heated exterior mirror
12 Rear flog lamp for l-h steering version
only (optional)
52
4
Engine speed regulation
After switching on (II/5) the
engine speed is
automatically set to 1900
rpm. Speed can modified by up and
down function in a range between
1900 and 2200 rpm.
5
Suction turbine /
sweeping
turns the suction turbine
ON/OFF and activates
sweeping operation the same time;
Switching the suction fan on and off
after standstill of the machine.
Note: as soon as the motor is running,
the suction turbine starts idling, even if
the switch was not depressed
II

9
Heater fan
turns the heater fan
ON/OFF depress forward
end = fan OFF
whip horizontal = low speed
depress rear end = high speed
Heater control valve
(not on display)
turns the heater ON/OFF;
this valve is located at the
top end of the driver's cabin
10
Water pump
turns the water pump
ON/OFF.
The water pump in turn
supplies spray nozzles located in th
brush arms and in the suction mouth.
Valves (III/3) are used to adjust water
flow.
1st stage
Standard water pump on/off
2nd stage
Additional water pump on/off
6
Suction mouth /
accessory mount
lifts and lowers the swee-
per and the accessory
mount; shift forward = lower, shift
approx.
3 seconds back = open coarse particle
flap – collect coarse garbage.
7
Lighting
turns vehicle's lighting
system ON/OFF
The switch (Fig.I/4) changes over
standard lighting (including flashlights)
of the device bottom to the device
top.
The only exception are the lateral
flashlights which assume their
function as before.
8
Hazard warning flasher
turns the hazard warning
flasher ON/OFF. A pilot
light in the switch flashes
RED when system is ON
53
Note: to build-up water pressure,
hold switch depressed for about
2 - 3 seconds.
11
Heated exterior mirror
(optional)
turns the heating facility
integrated in the mirror
ON/OFF
12
Rear flog lamp (optional)
turns the rear fog lamp
ON/OFF.
Note: This lamp is available in
left-hand steering version only.
Additional water pump (optional)
turns additional water pump
ON/OFF. We recommend to use
this pump when working in dusty
environment

1 Suction turbine speed control
controls suction turbine speed.
Adjust speed as a function of actual
degree of soilage.
We recommend:
step 5 - 6 for minor soilage
step 7 - 8 for normal soilage
step 9 - 10 extreme soilage
2 Brush load controller
adjusts brush contact pressure
3 Water control valves
to turn spray valves ON/OFF and to
control water flow to both of the
brushes and suction mouth
4 Brush speed control
to control rotational speed
1 Suction turbine speed control
2 Brush load controller
3 Water control valves (spray nozzles)
4 Brush speed control
5 Parking brake button
6 control sticks for plate brushes
54
5 Parking brake button
to actuate the parking brake
Caution: never actuate parking
brake during traveling (damage
to multiple-disc brake!). Parking
brake won't unlock unless engine
is running.
The lamp of the pushbutton extin-
guishes only 30 seconds after the
ignition has been turned off.
Before leaving the machine with the
engine running, engage the parking
brake.
6 Control sticks for plate brushes
to lower, lift and pivot the brushes
Windshield washer
The tank for the windshield washer is
located behind the cabin. Lift hopper to
get access to the filter neck.
III
1
2
3
4
5
6

1 Travel selector
to preselect direction of travel as
well as low and high traveling speed
forward = forward travel
central = neutral
lever back = return travel
lever up = low speed
lever down = high speed
Note:
The lever must not be used for
slowing down speed.
Set the lever to ”neutral“ position on
principle when the machine stands
still with the engine running.
2 Dirt hopper switch
to lift / lower dirt hopper.
If the hopper is filled, increase engi-
ne speed.
3 Starter switch
to preglow, start and stop engine,
secure against unauthorized use;
0 = engine and electric system OFF
1 = preglow until yellow light dims
2 = start; depress ignition key and
turn CW until engine starts cran-
king
Note: an installed safety feature
prevents double starting action.
4 12 V outlet
12 V outlet
to connect electrical equipments.
1 travel selector stick
2 dirt hopper switch
3 starter switch
4 12 V outlet
5 brake pedal
6 accelerator pedal
7 multi-function switch
8 steering column lock lever
The cabin outlet has a connected
load of 90 W, cabin outlet together
with the radio of 120W max.
5 Brake pedal
actuates the dual-circuit hydraulic
brake (works on all of the 4 wheels)
6 Accelerator pedal
for continuous travel speed control.
Before actuating the accelerator
pedal select direction on stick (IV/1)
= slowly depress forward end of
pedal
release pedal, will return to neu-
tral automatically, machine stops
Note: never actuate pedal by jerks;
before reversing, allow machine
to stop; a buzzer will sound when
driving in reverse speed
7 multi-function switch
contains the following functions:
horn
windshield washer
windshield wiper (2-speed plus
interval)
hi-beam ON/OFF
hi-beam, impulse
directional flasher
IV
55

8 Steering column lock lever
to incline steering column as
follows:
pull lever back
incline steering column as
desired
push lever forward
Caution! never attempt to drive
unless steering column is in locked
position, adjust only adjust only
after machine has been stopped.
1 Manual pump
2 Selector valve
3 Water tank drain valve
1 Manual pump
to lift the dirt hopper and opening
parking brake in case of an engine
failure.
2 Selector valve
to lift or lower dirt hopper, opening
and closing parking brake.
To actuate the selector valve use
the fork-wrench tool kit of the
machine.
Note: Do not actuate the valve with
the machine running.
The selector valve features two
positions:
valve position up
(standard position) = lift hopper
with hand pump
valve position down
= open brake manually
Note : The valve has to be in its up
position during operation
3 water tank drain valve
to drain the recirculating water tank
56
V
12
3

system is attained if the driver is sea-
ted and the indicator case shows the
green field.
knob (VI/3) for weight setting of the
pneumatic cushioning to the driver’s
weight
-press knob = blow cushioning up
-pull knob = deflate cushioning
Adjust steering column
pull steering column lock lever
adjust steering column
push steering column lock lever for-
ward again and lock column.
never attempt to ride the machine
unless steering column is locked and
has been adjusted after the machine
has been stopped.
the driver has to be seated
Note : The machine is equipped
with a safety circuit via seat contact
switch.
For driving actuate the following
controls in the following sequence:
travel selector stick neutral
suction turbine OFF
depress brake pedal
turn key forward until Yellow
preglow light dims, push key against
steering column and turn forward
until engine starts cranking
How to run the
Hako-Citymaster 1800 TDI
Do not attempt to start engine unless
a driver is seated. Adjust seat and
steering column to a comfortable posi-
tion
Adjust driver's seat:
lever (VI/1) for lengthwise displace-
ment
indicator (VI/2) for weight adjust-
ment. Optimum adjustment of cus-
hioning
57
Before using public roads (transport)
turn searchlights OFF, lift brushes to
standby position, turn hydraulics OFF
and lift accessory mount including
sweeping attachment.
Always adapt your traveling speed to
local conditions and the load situation of
your particular vehicle. Road contact,
steering and brake action are influenced
by filled hoppers and water tanks. Make
sure steering response and brake
action are sufficient. Never exceed spe-
cified axle load and total weight limits.
Perform transportation rides with dirt
hopper in low position only. Lift hopper
just before dumping only. Carry Owner's
Manual, first aid kit and warning triangle
on the machine all the time.
The Hako Citymaster 1800 TDI must be
run by skilled personnel only; such per-
sonnel will have to have evidenced their
qualification for running the machine to
the owner or his authorized representa-
tive; operators explicitly will have to be
instructed by the owner or his authori-
zed representative to use the machine.
A second person may be transported on
a suitable seat only. Passenger trans-
port prohibited.
VI

Never run engine in an indoor
location.
Note: when engine fires, engine oil
pressure light and charge light have to
dim.
At temperatures below 0 °C allow the
engine after firing to run idle for at
least 5 minutes and at temperatures
below-10°C for at least 15 minutes to
warm-up.
Before machine starts rolling make
sure the hopper is in low position
(check pilot light) and check whether
surrounding is clear of persons (chil-
dren). Maintain good visibility, never
leave driver's seat while machine is
rolling.
adjust direction and speed of travel
with control stick
forward travel, 1 speed
= 0 to 30 km/h
forward travel, 2 speed
= 0 to 50 km/h
slowly depress accelerator pedal,
machine starts rolling
Stop machine,
shut down engine
return accelerator to neutral
actuate brake pedal if hydrostatic
brake action is insufficient
when machine comes to standstill,
actuate parking brake.
Note: Parking brake won't open
unless engine is running!
return selector stick to neutral.
shut engine down
Note: do not attempt to shut
engine down in an high rpm
situation.
Before leaving the machine:
lower sweeping attachment,
secure machine against unintended
movement, e.g. by closing the parking
brake,
pull ignition key
lock cabin doors.
Sweeping
take the following actions before
sweeping:
lower hopper
Note: do not use any water at tem-
peratures below freezing point.
Drain residual water from tanks and
pump.
fill fresh water tank
open both hose couplings, connect
hose
fill tank until water starts overflowing
at the forward RH end of the tank.
Capacity approx. 380 litres.
fill recirculating water tank; open
rear hopper flap and fill water until
filter screen in bottom of hopper is
covered
close and lock rear flap
set all controls to neutral or zero
actuate brake pedal
start engine, refer to "drive the
Hako-Citymaster 1800 TDI"
58

slowly depress accelerator pedal
until machine starts rolling and go
ahead accelerating
Note: Note: never exceed admissi-
ble max. weight. Dump hopper
when over-load light on control
panel turns ON.
Lift hopper
In case of an engine failure lift hopper
as follows:
actuate manual pump (V/1); to ease
pump action plug tube of scraper
tool onto pump lever
move lever up and down until hop-
per is fully lifted and jackbar is loca-
ted under lock.
turn suction turbine ON, engine speed
automatically rises to approx. 1,900
rpm
lower accessory mount and sweeping
attachment, shift suction mouth to
operating position
lift brush arms out of their lock with
control switch, swing out and lower
select brush speed as required by
degree of soilage
adjust brush ground pressure as
required by degree of soilage
adjust suction turbine speed as re-
quired
continuously adjust sweeping width
between 1,200 and 2,500 mm
turn water pump ON
open water valves for LH and RH
spray nozzles, adjust waterflow as
required
open water valve for nozzle in suction
duct as required
turn rotating beacon ON
turn lighting and searchlights
(optional) ON as required
select direction of travel and speed
59
Cleaning work after swee-
ping
Perform the following cleaning work
with a water hose at least once a day,
or more frequent in case of severe
soilage:
Note: do not direct water jet on electric
or electronic components.
lift suction nozzle and clean with
water jet from top and bottom end
clean sweeping attachment and
front lift-out mechanism
dump dirt hopper, lift to top end and
secure in place with jackbar.
Stop engine, open rear flap, clean
hopper inside with water jet. Open
bottom screen from below and
clean; this action includes screens
on both sides.
Drain recirculating tank, flush and
fill.
Start engine, lower hopper and fill to
a level of about 2cm over bottom
screen.
Start sweeping, water from the recir-
culating tank is returned to hopper
through the suction pipe, thus flus-
hing the system. Continue flushing
for about 3 to 5 minutes.

clean suction turbine, connect water
hose to coupling underneath hopper
(LH, forward end) and allow water
to run into turbine, turbine running
at medium speed. This action may
be made in parallel with recircula-
tion cleaning, as described above.
Continue flushing for about 3 to 5
minutes.
clean suction turbine housing, unin-
stall lamellar grille above suction
turbine (loosen 3 ea. screws on for-
ward end and fold item back)
Clean housing inside with water jet,
water will be drained through 2
hoses and suction pipe to suction
mouth. Inspect hoses for clogging.
A small inspection plate screwed to
the front left side of the hopper may
be removed for cleaning the suction
turbine housing.
Note: do not use vapour jet or high-
pressure cleaners.
clean VW-Diesel engine's radiator
and hydraulic installation; to this
end open rear screen, clean both
sides of screen, clean radiator (fins)
with compressed air, if required,
close screen.
Maintenance work
Engine
for more details about operation and
maintenance of the VW engine refer to
the VW Owner's Manual enclosed at
the Hako Citymaster 1800 TDI.
engine may be started from the
driver's seat only
before commencing any servicing
work on the Hako Citymaster stop
engine and remove ignition key
before commencing any mainten-
ance, cleaning, setting or repair
work or during breaks, stop engine
and take adequate action to avoid
unintended movement.
use appropriate tools for maintenan-
ce, repair and setting work only
as far as aspects of safety are con-
cerned, spare parts at least need
to be of comparable quality as
genuine parts
when working under the lifted hop-
per, secure it with the jackbar against
accidental lowering.
The diagnosis plug for the engine
controller is located in the cabin
under thr left-hand dasboard.
Check engine oil level
lift hopper and secure with jackbar.
Check oil level on machine standing
on level ground, after having stopped
engine, allow oil to return to sump,
which may take a few minutes.
Oil level should read between max.
and min. mark on dipstick. Do not run
engine when reading is under min.
mark. Difference between max. and
min. marks equals 1 litre.
60