Minuteman PowerBoss 26 Series Guide

PowerBoss®26
Floor Scrubber
Model:Model:
Model:Model:
Model:
PB260026QPPB260026QP
PB260026QPPB260026QP
PB260026QP
PB260026CEPB260026CE
PB260026CEPB260026CE
PB260026CE
Revised 9/05
OPERAOPERA
OPERAOPERA
OPERATIONTION
TIONTION
TION SERVICESERVICE
SERVICESERVICE
SERVICE PP
PP
PARAR
ARAR
ARTSTS
TSTS
TS CARECARE
CARECARE
CARE

TT
TT
TABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTSABLE OF CONTENTS
ABLE OF CONTENTS
PagePage
PagePage
Page
Safety Instructions 1
Electrical Requirements 2
Control Panel Identification 3
Squeegee Adjustments 4
Operating Instructions 5
Main Polyethylene Components 6, 7
Recovery Tank and Solution Tank 8, 9
Drive Assemblies 10, 11
Mainframe 12, 13
Console Assembly 14, 15
Squeegee Mechanism Assembly 16
Squeegee Assembly Complete 17
Wiring Diagram (Standard) 18
Wiring Diagram (CE Model) 19

1
IMPORIMPOR
IMPORIMPOR
IMPORTT
TT
TANTANT
ANTANT
ANT SAFETYSAFETY
SAFETYSAFETY
SAFETY INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONSINSTRUCTIONS
INSTRUCTIONS
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
•Operators must read and understand this manual before operating or maintaining this equipment.
•Keep hands and feet clear of moving parts while machine is in operation.
•All switches must be in the “OFF” position when charging batteries.
•Electrical motors and components can cause an explosion when operated near explosive materi-
als or vapors. Do not operate this machine near flammable materials such as solvents, thinners,
fuels, grain dusts, etc.
•Make sure all switches are turned “OFF” and battery connections are removed before performing
any maintenance procedures.
•Store or park this machine on a level surface only.
•These machines are designed for level floor operation only. DO NOT OPERATE on ramps or
inclines.
•Battery acid can cause burns. When working on or around batteries, wear protective clothing and
safety glasses. Remove metal jewelry. Do not lay tools or metal objects on top of batteries.
•This machine is not suitable for picking up hazardous dust.
•Charging batteries generates explosive gases. DO NOT CHARGE BATTERIES WHEN OPEN
FLAMES OR SPARKS ARE PRESENT. DO NOT SMOKE. Make sure the charger is turned off
before disconnecting it from the batteries. Charge the batteries in a well-ventilated area.
•Maintenance and repairs must be performed by authorized personnel.
SASA
SASA
SAVEVE
VEVE
VE THESE INSTRUCTIONSTHESE INSTRUCTIONS
THESE INSTRUCTIONSTHESE INSTRUCTIONS
THESE INSTRUCTIONS

2
ELECTRICAL REQUIREMENTS:ELECTRICAL REQUIREMENTS:
ELECTRICAL REQUIREMENTS:ELECTRICAL REQUIREMENTS:
ELECTRICAL REQUIREMENTS:
This piece of equipment operates on 24 Volt DC.
BABA
BABA
BATTERTTER
TTERTTER
TTERYY
YY
YREQUIREMENTS:REQUIREMENTS:
REQUIREMENTS:REQUIREMENTS:
REQUIREMENTS:
4 x 6V 220AH P/N 956720
4 x 6V 275AH P/N 956740
BABA
BABA
BATTERTTER
TTERTTER
TTERYY
YY
YSERSER
SERSER
SERVICEVICE
VICEVICE
VICE
AND INSTAND INST
AND INSTAND INST
AND INSTALLAALLA
ALLAALLA
ALLATION:TION:
TION:TION:
TION:
* Warning: Battery acid can cause burns. When working on or around batteries, wear protective clothing and safety
glasses. Remove metal jewelry. Do not lay tools or metal objects on top of batteries.
BABA
BABA
BATTERTTER
TTERTTER
TTERYY
YY
YINSTINST
INSTINST
INSTALLAALLA
ALLAALLA
ALLATION:TION:
TION:TION:
TION:
1. Disconnect tank drain hose from rear of machine (6).
2. Raise tank assembly by raising rear cover and tilting tank, Figure 1.
3. Install batteries as shown in Figure 2.
CHARGING OF BACHARGING OF BA
CHARGING OF BACHARGING OF BA
CHARGING OF BATTERIES:TTERIES:
TTERIES:TTERIES:
TTERIES:
Charging of batteries generates explosive gases. DO NOT CHARGE BATTERIES WHEN OPEN FLAMES OR SPARKS
ARE PRESENT. DO NOT SMOKE. Make sure the charger is turned off before disconnecting it from the batteries.
Charge the batteries in a well-ventilated area. Fluid levels should be checked before and after charging and maintained
at the proper levels.

3
1. Vacuum recovery hose
2. Squeegee lift lever
3. Solution control lever
4. Brush pressure handle
5. Drain hose for recovery tank
6. Foot pedal for lower/raising brush
7. Drain hose for battery tray
8. Reverse control lever
9. Hour meter (optional)
10. Circuit breaker for vacuum motor
11. Circuit breaker for brush motor
12. Brush switch
13. Battery condition gauge
14. Vacuum switch
15. Speed control knob
16. Main power switch
17. Key switch (optional)
18. Forward control lever
19. Pump switch (optional)
20. Quick disconnect aux. out
(optional)
21. Dump hose for solution tank
CONTROLCONTROL
CONTROLCONTROL
CONTROL PP
PP
P
ANELANEL
ANELANEL
ANEL IDENTIFICAIDENTIFICA
IDENTIFICAIDENTIFICA
IDENTIFICATIONTION
TIONTION
TION
AUTO SCRUBBER BRUSH DESCRIPTIONAUTO SCRUBBER BRUSH DESCRIPTION
AUTO SCRUBBER BRUSH DESCRIPTIONAUTO SCRUBBER BRUSH DESCRIPTION
AUTO SCRUBBER BRUSH DESCRIPTION
TYPETYPE
TYPETYPE
TYPE DESCRIPTIONDESCRIPTION
DESCRIPTIONDESCRIPTION
DESCRIPTION DURABILITY*DURABILITY*
DURABILITY*DURABILITY*
DURABILITY* COLORCOLOR
COLORCOLOR
COLOR COMPCOMP
COMPCOMP
COMPARISONARISON
ARISONARISON
ARISON RECOMMENDEDRECOMMENDED
RECOMMENDEDRECOMMENDED
RECOMMENDED
TT
TT
TO PO P
O PO P
O PADSADS
ADSADS
ADS USEUSE
USEUSE
USE
Bassine Natural Fiber Short DarkBrown Red Light duty
general cleaning,
acid etching
Nylon Nylon Medium Black Tan/Red General cleaning
& scrubbing vinyl
floors, ceramic tile
& concrete floors
Dyna-Scrub Nylon impregnated Long Light Red General scrubbing,
with 500 Grit Blue vinyl tile, ceramic
Silicone Carbide tile, epoxy floors,
Fine Bristle, urethane finish,
Dense Fill uneven concrete floors
Power-Scrub Nylon impregnated Long Rust Red/Blue Moderate aggressive
with 120 Grit Silicon scrubbing, tile floors
Carbide Fine Bristle, concrete floors
Dense Fill
Poly-Grit Nylon impregnated Long Green Brown/Black Aggressive stripping
with 80 Grit and scrubbing, tile
Silicon Carbide floors, unfinished
Coarse Bristle concrete floors
Strata-Grit Nylon impregnated Long Dark Black Heavy duty
with 46 Grit Blue stripping/scrubbing
Silicon Carbide unfinshed
Coarse Bristle concrete
**
**
*Durability is dependent on floor surface, chemicals used and proper care.Durability is dependent on floor surface, chemicals used and proper care.
Durability is dependent on floor surface, chemicals used and proper care.Durability is dependent on floor surface, chemicals used and proper care.
Durability is dependent on floor surface, chemicals used and proper care.

4
SQUEEGEESQUEEGEE
SQUEEGEESQUEEGEE
SQUEEGEE ADJUSTMENTSADJUSTMENTS
ADJUSTMENTSADJUSTMENTS
ADJUSTMENTS

5
OPERAOPERA
OPERAOPERA
OPERATING INSTRUCTIONSTING INSTRUCTIONS
TING INSTRUCTIONSTING INSTRUCTIONS
TING INSTRUCTIONS
1. Filling: Fill the solution tank with the desired amount of water and add liquid cleaning solution to
the proper dilution ratio. DO NOT USE powdered cleaning chemicals. Powders are unlikely to
dissolve thoroughly, resulting in clogging the in-line solution filter. This can reduce or stop water
flow to the brush.
2. Close lid.
3. Turn on main power switch (refer to Page 3, #16).
4. Adjust main speed control, #15 to full counter-clockwise position.
5. Lower brush assembly.
- Depress foot pedal (6) slightly and push in on lever (4) to release, to increase brush pressure
pull up and back on lever (4) to lock in position.
- To lift the brush, press the pedal down until lift mechanism engages.
6. Turn on brush switch.
7. Adjust solution control feed lever.
8. Select vacuum operation:
Brush Driven Models – Turn vacuum switch to “On” position
Traction Driven Models
(a) “Vacuum On” mode – Vacuum will remain on until switched to the “off” position
(b) “Vacuum Auto” mode – Vacuum will come on automatically when forward or reverse
handles are squeezed, and remain on approximately 5 seconds after handle release.
9. Lower squeegee assembly.
10. Squeeze forward handle #18 and adjust forward speed.
After Use:
1. Turn off solution feed.
2. Switch off brush and raise.
3. Raise squeegee assembly.
4. Turn off vacuum motor.
Solution and recovery tanks should be emptied after every use.
MAINTENANCE:MAINTENANCE:
MAINTENANCE:MAINTENANCE:
MAINTENANCE:
DailyDaily
DailyDaily
Daily
1. Clean float assembly & squeegee blades.
2. Recharge batteries (check battery acid levels before and after charging).
MonthlyMonthly
MonthlyMonthly
Monthly
1. Check wear on squeegee blades.
2. Grease front and rear wheels.
3. Grease pivot points on brush motor assembly.
4. Every 500 hours check condition of carbon brushes on vacuum motor and brush drive motor.

6

7
PartPart
PartPart
Parts Lists List
s Lists List
s List
ItemItem
ItemItem
Item Part No.Part No.
Part No.Part No.
Part No. QtyQty
QtyQty
Qty..
..
.DescriptionDescription
DescriptionDescription
Description
1 260087 2 Hinge 15”
2 260091 1 Recovery Tank 260 Lt Gray
3 260092 1 Solution Tank 260 Lt Gray
4 260096B 1 Recovery Lid 260 Burgundy
5 260148 1 Solution Dump Bracket
6 260149 1 U Channel 12”
7 260157 2 Lid Gasket Short 260B
8 260158 2 Lid Gasket 260B
9 260159 1 Vac Hose 1/5 x 78” Wireloc
10 260160 1 Recovery Hose Assy. 260B
11 260169 1 Lid Flap
12 260170 2 Retainer, Flap
13 260203 2 Hose Clamp 102120 Murray
14 260212 1 Screen Filter
15 260228 1 Left Shroud Weldment
16 260230 1 Right Shroud Weldment
17 260232 2 Rubber Skirt
18 260233 2 Skirt Retainer
19 260256 1 Base 260TD Char Gray
20 260294 1 Gasket 260
21 260299 1 Shut-Off Plate Assy.
22 260301 1 Deflector Flap
23 260353 2 Lid Pivot Strap
24 260375 1 Mainframe PWRBS 260 TD
25 340664 2 Soft Latch w/Keeper
26 380204 1 380 Sideplate Weldment - Right
27 380207 1 380 Sideplate Weldment - Left
28 380215 2 Roller Pin
29 450081 1 WSR - 1.908 x 2.41 x .03 SS
30 66-436-A 2 Roller
31 710153 8 SCR-MC 10-32 x .37 ZINC
32 710180 4 SCR-MC 1/4-20 x .75 ZINC
33 711124 2 SCR-ST B 10 x .37 NI
34 711161 18 SCR-Hi/Lo 10 x 3/4 ZINC
35 711202 12 BLT-HH 1/4-20 x .50 STL ZINC
36 711350 8 Nut-Nyloc 10-32
37 711505 4 Washer - Flat 1/4
38 711544 12 WSR - 1/4 Helical
39 711715 4 Ret Ring Ext .75
40 711811 2 Hitch Pin 1/2 x 5 1/2
41 712102 2 Bolt - Shoulder 1/2 x 1.50
42 712540 14 SCR-MC 10-24 x .37 SS TH
43 712565 30 SCR-MC 1/4-20 x .62 SS
44 712667 4 Nut-Hex Nyloc 1/4-20 SS
45 715607 1 Decal - Battery Cable Routing
46 760263 2 Foam Tape 1/16 x 1/2”
47 828970 1 WSR-Neop 1.87 x 2.4 x .125
48 828971 1 Nut - 1-1/2 Pipe Thread
49 831812 1 Fitting ABS 1.5MPT 1.5HOSE