Pacific Z20BA User manual

Page 1 of 35
Z20BA
The contents of this manual are based on the
latest product information available at the
time of publication. Pacific reserves the right
to make changes or improvements to its
machines without notice.
Carefully inspect all components to ensure
that there is no concealed freight damage. If
such damage is discovered, file a
“CONCEALED DAMAGE REPORT”
immediately with the delivering carrier.
FOR YOUR CONVENIENCE, RECORD
THE FOLLOWING IMPORTANT
INFORMATION:
For new manuals write to:
Pacific
2259 S. Sheridan
Muskegon, MI 49442-6252
or download the most recent version of the
manuals from our website:
www.pacificfloorcare.com
SERIAL NUMBER
DATE PURCHASED

Page 2 of 35
SAFETY INSTRUCTIONS
1) You must have training in the operation of the machine before using it. READ THE
INSTRUCTION BOOK. If you do not understand any instruction, ask your supervisor.
2) Make sure all labels, decals, warnings, cautions and instructions are fastened to the
machine.
3) Read the labels carefully on the machine. Do not cover them for any reason and
replace them if damaged.
4) Do not operate this machine unless it is completely assembled and inspect the machine
carefully before operation.
5) Pay close attention to other people and especially children while operating this machine.
6) Be a careful driver and do not strike shelving or scaffolding, especially where there is a
danger of falling objects.
7) Machines can cause an explosion when operated near flammable materials and vapors.
Do not use this machine with or near fuels, grain dust, solvents, thinners, or other
flammable materials.
8) In case of fire, use a powder extinguisher. Do not use water.
9) Do not use this machine as a means of transport.
10) Do not use acid solutions that could damage the machine.
11) Adjust your speed to the conditions of the floor.
12) Do not turn the machine on an incline. Do not stop and leave the machine on a ramp or
incline.
13) During any maintenance operation disconnect the power supply from the machine.
14) Lead acid batteries generate gases that can cause an explosion. Read the instruction
manual supplied with the battery charger. Keep sparks and flames away from batteries.
NO SMOKING. Charge the batteries only in an area with good ventilation.
15) Do not use a charger if the power cord is damaged or if charger is not rated for the
machine.
16) Always wear eye protection and protective clothing when working near batteries.
Remove all jewelry. Do not put tools or other metal across the battery terminals, or on
the top of the batteries.
17) Maintenance and repairs must be performed by authorized Service Centers only.
18) Keep the electrical parts of the machine dry. Do not wash the machine with direct water
jets or high pressure, or with corrosive material. For storage, keep the machine in a dry
location.
19) Water solutions or cleaning materials used with this type of machine can leave wet
areas on the floor surface. These areas can cause a dangerous condition for the
operator or other persons. Always put CAUTION signs near the area you are cleaning.
20) Do not reach under shrouds with fingers, hands, or toes when machine is running.

Page 3 of 35
SYMBOLS USED ON THE AUTOMATIC SCRUBBER
Water Valve Indicator
Brush Drive Motor Control Switch
Vacuum Motor Control Switch
Brush Release Switch
Battery Charge Indicator
Main Machine Power Key Switch
Squeegee Lift Control Lever
Solution Flow Rate Adjusting Lever

Page 4 of 35
MACHINE PREPARATION
1) UNPACKING THE MACHINE
a) Take off the outer
packaging.
b) The machine is fastened to
the pallet with wooden
wedges that block the
wheels. Remove tie down
straps.
c) Using a ramp, pull the
machine off the pallet.
2) BATTERY INSTALLATION
a) Remove the squeegee hose
from the recovery tank.
b) Remove the vacuum cover
by rotating it
counterclockwise.
c) Remove recovery tank by
lifting tank by lift chain at the
back of the tank and the
drain hose at the front of the
tank.
Remove
Pull
Backwards
Remove
Lift Chain
Drain Hose Lift Point

Page 5 of 35
MACHINE PREPARATION
BATTERY INSTALLATION
(Cont.)
d) Place the batteries in the
battery compartment.
e) Connect the battery
connector to the machine
connector
f) Replace the recovery tank
and reassemble the vacuum
cover and squeegee hose.
3) BATTERY CHARGE LEVEL
INDICATOR
The batteries’ indicator is digital
with 4 display levels and a flashing
one. The numbers, which appear
on the display, show the
approximate charge level. 4
represents a full charge and 0
represents discharged and the
batteries must be recharged.
NOTE: The brush motor
automatically switches off after
the battery indicator light
begins to flash. You will be
able run the vacuum motor and
finish drying any wet areas.
Battery Charge
Indicator
Machine Connector
Battery Connector

Page 6 of 35
MACHINE PREPARATION
4) SQUEEGEE ASSEMBLY INSTALLATION
The squeegee is assembled to the machine
by lifting the locking latches and sliding the
squeegee assembly onto the 2 posts at the
rear of the squeegee swing arm. Push on the
locking latches down. Lower the squeegee
and install vacuum hose over vacuum outlet
on squeegee assembly. The hose should be
located to the rear of the lifting cable.
5) ADJUSTING SQUEEGEE HEIGHT
The height from floor to squeegee should be
adjusted based on blade wear. Rotate the
adjusting knobs counter-clockwise to lower
squeegee and clockwise to lift it.
NOTE: Rotate the right and left adjusting
knobs until the squeegee is positioned parallel
to the floor.
6) ADJUSTING SQUEEGEE INCLINATION
During operation the rear squeegee blade is
most efficient when bent backwards roughly
3/16ths to 5/16ths of an inch along its entire
length. To increase the blade bending in the
center of the squeegee, tilt the squeegee body
backward by turning the adjuster knob
counter-clockwise. Conversely, turn the
adjuster knob clockwise to increase the
bending at the outside edges of squeegee
blade.
Locking Latches
Vacuum
Outlet
Height
Adjusting
Knobs
Inclination
Adjusting
Knob

Page 7 of 35
MACHINE PREPARATION
7) RECOVERY TANK
Open the lid and confirm the following
connections are secure:
a) The vacuum cover is securely attached.
Align the notches and rotate the cover
clockwise to close. The vacuum hose
must also be attached.
b) Confirm that the squeegee hose is properly
connected.
c) Confirm that the drain hose plug, which is
located at the front of the machine, is
closed.
8) SOLUTION WATER
Fill the solution tank with clean water at a
temperature not higher than 50°C / 122°F. Add
the proper concentration of liquid detergent by
following the manufacturer instructions. Excess
foam in the recovery tank can damage the
vacuum motor, so use only the minimum amount
of detergent necessary. Reassemble the cover.
WARNING! Always use low foaming
detergent. Adding antifoam liquid into
the recovery tank before cleaning will also help
prevent foaming.
NEVER USE ACID, BLEACH or AMMONIA
9) BRUSH INSTALLATION
a) Lift the brush base by depressing the foot
level at the rear of the machine.
b) Place the brush at the front of the machine
and push machine forward, centering the
brush deck over brush.
c) Lower the brush deck onto the brush and
move machine until brush deck drops
through brush.
d) Turn on brush motor switch and engage
handle switch lever. The brush will
automatically lock onto the brush drive
mechanism.
e) Adjust the height of the splash guard such
that it just clears the floor by turn the
splash guard height adjusting knob.
Vacuum
Cove
r
Squeegee
Hose
Solution Tank
Fill O
p
enin
g
Splash
Guard
Height
Adjusting
Knob

Page 8 of 35
MACHINE OPERATION
1) Connect machine connector to the battery
connector.
2) Turn on the main power key switch. Battery
charge indicator will illuminate indicating the
charge level of the batteries. If the indicator is
flashing the batteries need to be charged.
3) Turn on the brush motor switch. Please note
that the scrubbing brush will not rotate until
the hand switch lever is engaged.
4) Turn on the water solenoid valve switch.
5) Turn on the vacuum motor switch.
6) Adjust the flow rate of the cleaning solution
with lever. Moving the solution flow control
lever downward increase the flow rate and
raising the lever decreases the flow rate.
There should be enough solution to wet the
floor uniformly, but not so much thatthe water
gets past the splash guard. Remember that
the correct solution quantity depends on the
type of floor, the dirt level and the scrubbing
speed.
7) Release parking brake by raising parking
brake lever.
8) Release and raise the brush base lift lever to
lower the brush base.
9) Lower the squeegee using the squeegee lift
lever.
Machine
Connecto
r
Battery
Connecto
r
Vacuum
Motor
Switch
Water
Solenoid
Switch
Battery
Charge
Indicator
Brush Motor
Switch
Squeegee
Lift Leve
r
Brush
Base
Lift
Lever
Solution
Flow
Control
Lever
Brush
Release
Switch Main Power
Key Switch
Parking Brake
Leve
r
Solution
Tank
Drain
Hose

Page 9 of 35
MACHINE OPERATION
10)SCRUBBING
This machine is equipped with brush assist
propulsion. Depress the handle switch lever.
The scrub brush will begin to rotate and solution
will begin to flow. During the first few yards of
operation, check that the quantity of the cleaning
solution is sufficient to wet the floor and that the
squeegee dries the floor surface.
WARNING! Always lift the squeegee when
moving backwards.
11)OVER FILL PROTECTION
The machine is equipped with a float that stops
the vacuum exhaust air flow when the recovery
tank is full. Vacuum motor does not stop
operating but the vacuum exhaust air flow rate is
greatly reduced. When this occurs, empty the
recovery tank by removing the drain plug on the
drain hose and then empty the recovery tank.
WARNING! Use gloves for protection
from contact with dangerous solutions.
Handle Switch
Leve
r
Drain Plug
Float

Page 10 of 35
UPON COMPLETION OF MACHINE USE
After finishing your work and before any type of
maintenance is done, it is necessary to do the
following:
1) Close the water valve by raising the solution
flow control lever.
2) Raise the brush base by stepping down
locking the brush base lift lever. To lock the
lever move your foot to the right while the
lever is pressed down.
3) Lock parking brake by stepping down on
parking brake lever. To lock the lever move
your foot to the right while the lever is pressed
down.
4) Lift the squeegee by raising the squeegee lift
lever and locking it by moving the lever to the
left.
WARNING! The squeegee blades can
be damaged if the squeegee is not raised
during storage or transport.
5) Switch off main power key switch.
6) Switch off the water solenoid valve switch.
7) Switch off the brush motor switch.
8) Switch off the vacuum motor switch.
9) Transport the machine to the location where
the recovery tank should be emptied.
10)Remove the drain hose at the front of the
recovery tank.
11)Remove the drain plug and empty the
recovery tank.
WARNING! Use gloves for protection
from contact with dangerous solutions.
12)Remove the brush or pad driver and clean
them with clear water.
Squeegee
Lift Leve
r
Brush
Base
Lift
Leve
r
Solution
Flow
Control
Lever
Parking Brake
Leve
r
Vacuum
Motor
Switch
Water
Solenoid
Switch
Battery
Charge
Indicator
Brush Motor
Switch
Brush
Release
Switch Main Power
Key Switch
Drain Plug
Solution
Tank
Drain
Hose

Page 11 of 35
DAILY MACHINE MAINTENANCE
CLEANING THE RECOVERY TANK
1) Empty the recovery tank by removing the drain
plug from the drain hose.
WARNING: Use gloves for protection from
contact with dangerous solution.
2) Lift the cover of the recovery tank.
3) Take off the vacuum cover by rotating it
counter clockwise.
4) Remove the filter and its housing.
5) Rinse the tank with clean water.
CLEANING THE VACUUM FILTER
6) Lift the cover.
7) Take off the vacuum cover by rotating it
counter clockwise.
8) Remove the filter and its housing.
9) Use clear water to clean the walls and the
bottom of the filter.
10)Remove the filter and its housing.
11)Wash all components thoroughly.
12)Reassemble repeating the above operations
in reverse.
Vacuum
Cove
r
Squeegee
Hose
Drain Plug

Page 12 of 35
DAILY MACHINE MAINTENANCE
CLEANING THE SQUEEGEE
To obtain the best drying results, keep the
squeegee clean. To clean the squeegee it is
necessary to:
13)Remove the vacuum hose from the
squeegee.
14)Lift locking latches. Remove the squeegee
assembly by pulling rearward.
15)Clean the inside of the squeegee thoroughly.
16)Clean the squeegee blades thoroughly.
17)Reassemble.
REPLACING THE SQUEEGEE BLADES
Check the squeegee blades for wear and if
necessary, change them. To replace the
squeegee blades:
18)Remove the squeegee vacuum hose from its
port.
19)Lift locking latches and pull squeegee
assembly rearward.
20)Release the band clamps by lifting the band
clamp latch.
21)Remove squeegee blades.
22)Rotate or replace the blades. Please note
that the squeegee has 4 useable edges so
you may be able to rotate squeegee blades.
23)To reassemble the squeegee, repeat the
above operations in reverse.
Band
Clamp
Latch
Band
Clamp
Latch
Band
Clamp
Squeegee
Blade
Band
Clamp
Squeegee
Blade
Locking Latches
Vacuum
Outlet

Page 13 of 35
DAILY MACHINE MAINTENANCE
BRUSH / PAD DRIVER REMOVAL
24)Lift the brush base by depressing the foot
level at the rear of the machine.
25)Turn on brush motor switch.
26)Depress handle switch lever to start the brush
spinning.
27)Release handle switch lever and quickly
depress brush release switch. The brush or
pad driver will release and drop to the floor.
28)Pull machine backwards to access brush or
pad driver.
29)Rise the brush or pad driver with clear water.
Brush
Release
Switch

Page 14 of 35
WEEKLY MACHINE MAINTENANCE
CLEANING THE SQUEEGEE HOSE
To obtain the best drying results, keep the
squeegee hose clean. To clean the squeegee
hose it is necessary to:
1) Take off the vacuum hose from its vacuum
port on the squeegee.
2) Remove the other end of the vacuum hose
from the recovery tank.
3) Wash the inner part of the hose with clean
water.
4) Reassemble.
WARNING: Do not wash the hose that
goes from the vacuum motor to the
vacuum cover.
SOLUTION TANK CLEANING
5) Remove the fill cap from the solution tank.
6) Rinse with clear water.
7) Remove the solution tank drain hose and cap
at rear of machine and empty the solution
tank.
WARNING: Use gloves for protection
from contact with dangerous solution.
IN-LINE FILTER CLEANING
8) Drain solution tank.
9) Turn off solenoid valve.
10)Loosen set screw on in-line filter but do not
remove.
11)Pull rear hose rearward and separate in-line
filter into 2 pieces.
12)Remove the filter element and clean with
clear water.
13)Reassemble.
WARNING: Use gloves for protection
from contact with dangerous solution.
Do Not
Wash
Vacuum
Cover
Hose
Wash
Squeegee
Hose
Solution Tank
Fill O
p
enin
g
In-Line
Filter
Set Screw
Filter Element

Page 15 of 35
WATER SOLENOID MAINTENANCE
In the event that the water solenoid begins to
leak when turned off debris must be cleared at
the valve seat.
Water
Solenoid

Page 16 of 35
TROUBLE SHOOTING GUIDE
1) INSUFFICIENT WATER TO THE BRUSHES
a) Make sure the solution flow control valve is open.
b) Confirm that there is water in the solution tank.
c) Make sure solution dispensing tubes are not clogged or
obstructed.
2) THE MACHINE DOES NOT CLEAN SATISFACTORILY
a) Check the condition of the brush or pad and replace them if necessary.
b) The brush should be replaced when the bristles reach a length of 5/8 inches (15mm).
3) THE SQUEEGEE DOES NOT DRY THE FLOOR WELL
a) Check that the squeegee blades are clean.
b) Adjust the inclination of the squeegee.
c) Confirm the vacuum hose is correctly fitted into its port in therecovery tank and free
from obstructions.
d) Replace the squeegee blades if worn.
e) Check that the vacuum motor switch is on.
f) Check the squeegee height adjustment (see "MACHINE PREPARATION" section).
4) EXCESSIVE FOAM PRODUCTION
a) Check that a low foaming detergent has been used. If required, add asmall quantity of
defoamer liquid to the recovery tank. More foam is generated when a floor is lightly
soiled. Use less detergent if this is the case.
Solution
Flow
Control
Lever

Page 17 of 35
Brush Deck Assembly Drawing 1

Page 18 of 35
Drawing 1
PART NUMBER DESCRIPTION & SPECIFICATION QTY NOTE
841102 Wheel Bushing 1
841107 Bushing 2
841109 Bushing 1
841307 Brush Deck Base Weldment 1 EPOXY PAINT
842003 Hose Clamp 3 SS
842309 Base Cover 1
843302 Fitting Barbed 3
845004 Key - Motor Shaft 1
845005 Knob 1
845116 Brush Base Dual Lift Link 1 EPOXY PAINT
845203 Brush Motor 560 Watt 1
845604 Solenoid Valve Mount 1 ZINC
845606 Motor Mount Support Weldment 1 EPOXY PAINT
846906 Motor Pulley 1 ZINC
848307 Spring 1 ZINC
848308 Spring 1 ZINC
848310 Spring 1 ZINC
848504 Belt Tension Support Weldment 1 EPOXY PAINT
849009 Tubing 1
849401 Valve Solenoid 1
849701 Wheel 1
849802 Special Washer 1
863606 20B Splash Guard - Blue 1
880540 Adjuster Screw M6x40 1 ZINC
880541 Adjuster 1 ZINC
880952 Preteus20B Carbon Brsuh 4
880960 20 Inch Brush 1
881140 Bushing 2
881141 Bushing 1 ZINC
882131 Clip Guard 8
885046 Knob 1
886940 Brush Pulley 1
887740 Brush Shaft 1 ZINC
888240 20B Brush Shaft Spacer 1 ZINC
888241 Bearing Spacer 1 ZINC
888340 Spring 1 ZINC
888341 Spring 1 ZINC
888342 Spring 1 ZINC
902031 Bearing 2
902032 Bearing 3
903016 Belt 1
920033 M4 Hexagon Lock Nut 8
920649 Hex Nut M8 Zinc 2
920650 Hex Nut M12 Zinc 2
920653 M6 Nyloc Hex Nut Zinc 2
924033 NyLoc Hex Nut M8 Zinc 3
924040 Jam Hex M24 Zinc 1
924063 Hex Nut M6 Zinc 2
924078 Hex Jam Nut M8 Zinc 1
924079 Clip Nut M6 Zinc 1
964083 Hex Bolt M8x30 Zinc 1
964086 Hex Bolt M8X22 Zinc 2
964093 Carage Bolt M8X45 Zinc 1
964103 Hex Bolt-Full M8x45 Zinc 1
964116 Hex Bolt M6x20 Zinc 6
964180 Hex Bolt M6x85 Zinc 1
964193 Oval HD Screw M4x16 Zinc 8
964239 Hex Bolt M8x25 Zinc 3
964400 Flat Head Soc Hex Screw M6x16 Zinc 1
964423 Hex Bolt M6X12 Zinc 2
964425 Flat Head Soc Torx Screw M6x30 SS 1
964426 Set Screw M6x10 Zinc 1
964444 Flat Head Soc Hex Screw M8x55 Zinc 1
964446 Soc Flat Head Screw M6x25 SS 1
980050 Flat Washer M24 Zinc 1
980069 Lock Washer M8 Zinc 5
980620 Special Washer 1
980665 M6 Flat Washer Zinc 9
980671 M6 Washer Flat L Zinc 2
980672 M6 Lock Washer Zinc 6
980679 M8 Washer Flat Zinc 2
980681 Washer M4 Flat Zinc 8
980684 M8 Washers Flat L Zinc 9
980701 M16 Flat Washer Zinc 2

Page 19 of 35
Main Frame Assembly Drawing 2

Page 20 of 35
Drawing 2
PART NUMBER DESCRIPTION & SPECIFICATION QTY NOTE
840307 Brush Desk Lift Arm Weldment ASM 1 ZINC
840308 Brake Lever Arm Weldment 1 ZINC
840309 Brush Deck Idle Arm Weldment 1 ZINC
841106 Rubber Bushing 2
841108 Bushing 2
842003 Hose Clamp 2 SS
842008 Z20-Z26 Clamp Bar 1
842306 Pedal Cover 1
842311 Pedal Cover - Brake 1
842701 Metal Disc 2 ZINC
843203 Z20-Z26 Main Frame Weldment 1 EPOXY PAINT
843314 In Line Filter Outer Housing 1
843315 In Line Filter Inner Housing 1
843316 In Line Filter Element 1
843603 Z20-Z26 Splash Guard 1
843801 Grommet 1
845117 Brake Lever Arm Weldment 1 ZINC
845118 Brake Latch 1 ZINC
845801 O-Ring 21.2x2.65 1
845902 Brake Pad 2 ZINC
846404 Axle Retaining Plate Weldment 1 EPOXY PAINT
846405 Axle Retaining Plate Weldment 1 EPOXY PAINT
847001 Brush Lift - Pivot Block 6
847002 Brush Lift - Pivot Block 4
847302 Retaining Ring 20mm x 1.2mm THK 1
847407 Brake Screw Rod 1
847705 Wheel Shaft 1 ZINC
848206 Wheel Spacer 2 ZINC
848208 Pivot Block Spacer 1
848302 SPRING 1 ZINC
848309 Brake Return Spring 1 ZINC
849005 Tubing 1
849006 Tubing 1
849703 Castor 2
849704 Main Wheel 2
920648 M12 Nyloc Hex Nut Zinc 3
920649 Hex Nut M8 Zinc 6
920653 M6 Nyloc Hex Nut Zinc 14
924032 M5 Nyloc Hex Nut Zinc 8
924033 NyLoc Hex Nut M8 Zinc 5
924063 Hex Nut M6 Zinc 2
964007 Hex Bolt M8x40 Zinc 1
964116 Hex Bolt M6x20 Zinc 2
964176 Hex Bolt M6x30 Zinc 2
964182 Screw M4x10 Pan Head Zinc 4
964209 Hex Bolt M6x16 Zinc 4
964225 Hex Bolt M5X20 Zinc 8
964230 Hex Bolt M12x65 Zinc 1
964400 Flat Head Soc Hex Screw M6x16 Zinc 2
964428 Hex Bolt M6x60 Zinc 4
964429 Hex Bolt M6x50 Zinc 6
964437 Screw - SHCS M8x40 Zinc 2
964442 Slotted Set Screw Cone Point M3x6 1
980043 Washer Flat M12 5
980501 M6x22 OD Washer Flat Zinc 2
980665 M6 Flat Washer Zinc 24
980670 M6 External Lock Washer Zinc 2
980671 M6 Washer Flat L Zinc 4
980672 M6 Lock Washer Zinc 2
980676 M8 Washer - Plastic 2
980679 M8 Washer Flat Zinc 8
980684 M8 Washers Flat L Zinc 1
980685 M5 Washer Flat Zinc 16
74610004 Brake Cable Fork 2
74620005 Brake Cable Retaining Pin 2