Minuteman MC17026-00 Service manual

170TD
Automatic
Scrubber
Model: MC17026-00
MC17026QP
Revised 6/02
OPERATION SERVICE PARTS CARE

TABLE OF CONTENTS
Page
Safety Instructions 1
Electrical Requirements 2
Control Panel Identification 3
Brush Installation Instructions 4
Operating Instructions/Maintenance 5
Main Polyethelene Components 6 & 7
Solution/Recovery Tank 8 & 9
Vacuum Components 10 & 11
Brush Drive Assemblies 12 &13
Squeegee Assembly 14 & 15
Wiring Diagram 16

1
IMPORTANT SAFETY INSTRUCTIONS
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
materials or vapors. Do not operate this machine nearflammable 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 toolsor metal objects on top of
batteries.
• This machine is not suitable for picking up hazardous dusts.
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.
SAVE THESE INSTRUCTIONS

2
ELECTRICAL REQUIREMENTS:
This piece of equipment operates on 24 Volt DC.
BATTERY REQUIREMENTS:
2 x 12V 80 Amp Hour 20 Hour Rate Deepcycle P/N 956721
2 x 12V 105 Amp Hour 20 Hour Rate Deepcycle P/N 956712
BATTERY SERVICE AND INSTALLATION:
*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.
BATTERY INSTALLATION:
1. Disconnect tank drain hose from rear of machine.
2. Disconnect vacuum recovery hose.
3. Raise tank assembly by gripping side hand holds, and tilting forward.
4. Position tank kickstand as shown below, figure 1, to hold tank in upright position. To lower,
raise tank slightly forward and manually move kickstand to freed position.
5. Install batteries as shown in figure 2.
CHARGING OF BATTERIES:
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.
Fig.1 Fig.2

3
1. Direction switch 7. Main power switch
2. Vacuum switch 8. Speed control knob
3. Squeegee lift lever 9. Drain hose for clean solution tank
4. Battery condition meter 10. Drain hose for recovery tank
5. Solution control lever 11. Vacuum recovery hose
6. Main power indicator 12. Foot pedal for raising/lowering brush

4
BRUSH REMOVAL
Empty solution and recovery tanks.
Disconnect batteries.
Remove squeegee assembly.
Lower brush.
Tilt machine as shown (figure 3) until machine rests on foot pedal.
Brush has a snap-on push off clutch plate. Pushing brush away from the machine from the
side, will release brush assembly.
To install: Hold brush in the center and snap on to drive hub.
Fig.3

5
OPERATING 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. Lower brush assembly.
- To lower the brush, first push the pedal slightly towards the center of the
machine (unlock it), then release it slowly.
- To lift the brush, press the pedal down until lift mechanism engages.
4. Turn on brush switch.
5. Adjust solution control feed lever.
6. Turn on vacuum switch.
7. Lower squeegee assembly.
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:
When cleaning, servicing or maintaining the machine the power should be switched off.
Daily 1. Clean float assembly & squeegee blades. Vac filter.
2. Recharge batteries (check battery acid levels before and
after charging).
Monthly 1. Check wear on squeegee blades.
2. Grease rear wheels.
3. Grease pivot points on brush motor assembly.
Every 500 hours check condition of carbon brushes on vacuum motor and brush drive motor.

6

7
Parts List
Item Part No. Qty. Description
1 430000TD 1 Base 170TD
2 430001MCH 1 170 Sol/Recovery Tank Assy
3 430002 1 Cover Poly 170 Burgundy
4 430044 2 Hinge Lid 17 B/E
5 430046 2 Side Skirt Retainer 17
6 430049 1 Splash Skirt 17 B/E
7 430126 2 Hinge Backing Plate
8 430136 1 Gasket Seal Kit (4)
9 712560 6 SCR-MC ¼-20 x .50 SS
10 712536 6 SCR-MC 10-24 x .62 SS
11 450021 1 Hinge
12 712822 6 SCR-THMS 10-24 x .50 STPL
13 711161 18 SCR-Hi/Lo #10 x ¾ PL

8

9
Parts List
Item Part No. Qty. Description
1 130118 1 Solution Strainer
2 200173 1 Float Housing
3 210401 2 Solution Hose
4 210409 2 Fitting Brass 3/8MPT 3/8FPT
5 210410 2 Fitting Brass 3/8 FPT 3/8 Barb
6 210414 2 “O” Ring 2-113
7 260203 1 Hose Clamp
8 430001MCH 1 170 Sol/Recovery Tank Assy.
9 430037 2 Bumper Wheel Axle
10 430038 2 U Bracket Wheel Mount
11 430050 1 Filter Screen 4 x 4
12 430089 1 Float 17B
13 430090 1 Float Valve Weldment
14 430098 1 Vac Recover Hose 22 C/L
15 430116 1 Hose 3/8 Nyloc x 34"
16 430121 1 Standpipe Assy. 170/175
17 430199 1 Hose White Wireloc 24”
18 450076 1 Crimp Clamp SS 185R
19 450081 2 WSR SS 1.908 x 2.41 x .03
20 450083 2 Insert Fitting
21 710353 2 SCR-MC 10-32 x .37 STPL
22 710985 2 SCR-SC 3/8 - 16 x .62
23 711504 1 WSR-Flat 1/4 ID SS
24 711513 2 WF .689 x 1.06 x .029 SS
25 712092 1 SCR Nylon 1/4-20 x 2.5
26 712568 1 SCR-MC 1/4 - 20 x 2.25 SS
27 712667 1 Nut-Hex 1/4 - 20 SS Nyloc
28 760343 1 Tube Hose 24/32B
29 762331 2 Wheel, 2.5 D x 1.28 W x .38 ID
30 762384 2 Bushing SS .277 x .375 x .37
31 828970 1 WSR NEOP 1.87 x 2.4 x .125
32 828971 1 Nut 1 1/2 Pipe Thread
33 829559 1 Cable Assy 170/175
34 830062 2 Fitting Brass 90 3/8MPT
35 833316 1 Drain Plug

10

11
Parts List
Item Part No. Qty. Description
1 250041 1 Seal, Rubber
2 831001 2 Crimp Clamp 44OR
3 290017 1 Molded Vac Mtr Gasket
4 430018 2 Z Bracket
5 430029 2 Caster
6 430042 1 Caster Mounting Bracket
7 430138-1 2 Wheel 6”
8 430069 1 Vacuum Manifold Assembly
9 828264 1 Spring Washer Cup
10 430099 1 Vacuum Hose
11 450038 2 Z Bracket
12 460019 1 Gasket 3.75x5.75x.75
13 710178 7 SCR-MC ¼-20 x .50 STPL
14 712129 3 SCR-TR ¼-20 x 1.00 HWH
15 711106 4 SCR-ST-A 10 x .75 PL
16 711161 5 SCR-Hi/Lo #10 x ¾ PL
17 711210 3 BLT-HH ¼-20 x 1.25 STPL
18 711243 6 BLT-HH 3/8-16 x 1.5 STPL
19 711380 8 Nut-Nyloc 3/8-16
20 711425 3 Nut-Flanged ¼-20
21 711439 2 Nut-Flanged Wizz 3/8-16
22 711506 3 WSR-Flat 5/16 STPL
23 711509 6 WSR-Flat ½
24 430149 4 Bushing .531 x 1 x .25 SS
25 711515 12 WSR-Flat .406 x .812 x .062
26 712090 2 Shoulder Bolt ½ x 3.5
27 740063 1 Vac Motor 24V
28 740132 1 Insulator, Glastic
29 760859 1 Clamp, Hose
30 762398 1 Hose, Rubber Flex 2 x 13
31 801013 1 Sleeve, Hose
32 832136 1 Nylon Sleeve Sol. Feed
33A 430034 1 Nylon Brush
33B 430108 1 Pad Driver
33C 430111 1 Poly Grit Brush
33D 430132 1 Strato Grit Brush
34 710986 2 SCR-SC 3/8-16 x 1.00
35 364-816 1 Nut-Nyloc ½
36 711510 3 Washer
37 828301 1 Spring
38 711559 1 WSR-Internal Lock 3/4
39 210083 1 Adj. Rod Weldment
40 450040 1 Elbow 3/8 MPT x 3/8 Barb
41 450076 1 Crimp Clamp SS
42 210401 1 Solution Hose 3/8
43 809413MCH 1 Solution Valve
44 829463 1 WSR-Flat 0.75 x 2.00 x .05
45 828975 1 WSR-Neo .75 x 1.50 x .09
46 210370 1 Solution Valve Bracket
47 711106 3 SCR-ST-A 10 x .75 PL
48 711513 1 WSR-Flat .689 x 1.06 x .029
49 342430 1 Hose Barb 3/8 MPT x 3/8 Barb
50 742254 1 Torriod Ferrite
51 840112CTD 1 Vac Cover
52 832996 1 Terminal Block
53 742281 1 Ground Strap
54 380035 1 Foam Ring

12

13
Parts List
Item Part No. Qty. Description
1 740209 1 Gear Motor 24V
2 210124 1 Bearing Stud
3 361254 1 Bearing
4 430013 1 Stabilizer Bracket
5 740241 2 Contactor 24V 50A
6 711425 8 Nut-Flanged Wizz ¼-20
7 711535 4 WSR-Helical .26 x .50 x .02
8 711202 12 BLT-HH ¼-20 x .50 STPL
9 430106 1 Stabilizer Bar - Lower
10 711380 1 Nut-Nyloc 3/8-16
11 430009MCH 1 Motor Bracket Weldment Machined
12 710986 3 SCR-SC 3/8-16 x 1.00 STPL
13 430035 1 Drive Hub
14 711555 1 WSR-Loc Internal
15 320268 1 Pin
16 210066 1 Drive Hub Retainer
17 450076 2 Crimp Clamp SS
18 833473 1 Hose Barb ¼ FPT x 3/8 Barb
19 100000 1 Mounting Bracket Quick Disc.
20 711579 1 WSR-Flat .56 x 1.00
21 430081 1 Wheel Mount U Strut Left
22 430114 1 Nylon Cap ¼ FPT HC4
23 430118 1 Clear Dump Hose C/L 22”
24 828952 1 3/8 barb x ¼ MPT
25 833325 1 Elbow ¼ MPT x 3/8 Barb
26 742330 1 Transaxle 170TD
27 711505 2 WSR-Flat ¼
28 430313 2 Nut-Nyloc M6
29 430308 1 Wheel
30 430319 1 Motor Mount Weldment
31 711553 4 WSR-Int. Tooth #10
32 711355 4 SCR-MC 10-32 x .500
33 711374 1 Nut-Nyloc 5/16-18
34 430066 2 Squeegee Return Spring Long
35 430067 1 Squeegee Return Spring Short
36 711246 1 BLT-HH 3/8-16 x .87 STPL
37 711227 1 BLT-HH 5/16-18 x .62
38 430030 1 Squeegee Mount Weldment
39 711515 3 WSR-Flat .44 x .87 x .07
40 430306 1 Mounting Plate Weldment
41 712569 2 SCR-MC ¼-20 x 1.50 SS
42 430088 1 L Bracket Motor Lift
43 430113PLT 1 Bushing
44 430014 1 Motor Lift Weldment
45 210142 1 Pedal
46 430064 1 Wheel Mount U Strut Right
47 430051 1 Return Spring
48 711379 1 Nut-Flanged Wizz 5/16-18
49 711212 1 BLT-HH ¼-20 x 1.50
50 361203 1 Rubber Skirt
51 361205 1 Skirt Retainer
52 711106 3 SCR-ST-A 10 x .75
53 430116 1 Hose 3/8 Nylon x 34”
54 711517 3 WSR-Flat .77 x 1.37 x .03
55 430003 1 Motor Mount Weldment
56 430009 1 Motor Bracket Weldment
57 833102 3 Compression Spring
58 260041 3 Flange Bushing
59 710992 3 Shoulder Bolt ½ x 1.25

14

15
Parts List
Item Part No. Qty. Description
1 430301 1 Speed Control Cover
2 711161 14 SCR-Hi/Lo 10 x 5/8
3 430316 1 Edge Seal
4 740944 1 Speed Control Board
5 740368 1 Potentiometer Assembly
6 809874 1 Knob
7 711430 1 Tinnerman Plate
8 210362 1 Switch Bracket
9 833329MCH 1 Micro Switch
10 710307 2 6-32 x 1.00 Screw
11 711002 1 SCR-SK 8-32 x .500
12 430312 1 Cam Assembly
13 829052 2 Nylon Flanged Bushing
14 711721 2 Retaining Ring
15 430313 1 Wire Handle
16 809754 1 Switch, Rocker
17 742102 1 Switch, 2-Position
18 740216 1 Gauge, Battery Condition
19 715752 1 Decal
20 712822 6 SCR-THMS 10-24 x .50 STPL
21 711124 2 SCR-ST-B 10 x .37
22 712320 2 WSR-Nylon .22 x .45 x .04
23 740591 1 Panel Light Assembly
24 740711 1 Switch
25 430053 1 Solution Control Cable
26 430307 1 Dashboard
27 760592 1 Knob, Oval Tapered
28 430060 1 Squeegee Lift Arm Assembly
29 430052 1 Squeegee Lift Cable Assembly
30 711506 2 WSR-Flat 5/16 STPL
31 712041 2 BLT-Shoulder ¼-20 x .44 x .37
32 711523 1 WSR-Wave .37 x .68 x .02
33 829014 1 Flanged Bushing
34 762058 1 Spacer .319 x .375 x .250
35 711301 2 Nut-Hex 6-32
36 711551 2 WSR-Internal Lock #6
37 430087 1 Anderson Plug Bracket
38 740097 1 SB50 Red 111783G2FOR B43
39 710207 2 SCR-MC 6-32 x .87 STPL
40 711161 7 SCR-Hi/Lo #10 x ¾
41 742350 1 Circuit Breaker 6A
42 710180 2 SCR-MC ¼-20 x .75
43 711352 1 Nut-Acorn ¼-20
44 430059 1 Squeegee Lift Bracket Assembly
45 711373 1 Nut-Nyloc ¼-20
46 711505 1 WSR-Flat ¼
47 740131 1 Circuit Breaker, Dive Motor
48 741037 1 5 Sec. Delay Timer
49 711211 1 BLT-HH ¼-20 x 1.37
50 740132 1 Insulator, Glastic
51 710356 2 SCR-MC 10-32 x .62 STPL
52 740241 1 Contactor, 24V 50A
53 710178 1 SCR-MC ¼-20 x .50
54 711425 6 Nut-Flanged Wizz ¼-20
55 711503 4 WSR-Flat #10
56 711350 2 Nut-Nyloc 10-32
57 760286 1 Wire Formed Hook
58 430120 1 U Channel
59 711808 1 Cotter Pin - Hair #13
60 430105 1 Clevis Pin .312 x .175
61 430070 1 Squeegee Mount Assembly
62 430073 1 Gasket, Diecut
63 430074 6 Adjusting Nut
64 430085 2 Squeegee Bumper Wheel
65 430078 1 U Profile
66 11-145 1 Squeegee Blade
67 430076 2 Nylon Squeegee Insert
68 712517 4 SCR-MC 8-32 x 1 SS FH
69 430079 1 Casting, Squeegee Assembly
70 370031 2 Wheel

16
WIRING DIAGRAM

LIMITED WARRANTY
Minuteman International, Inc. warrants to the original purchaser/user that this product is free from defects in workmanship and
materials under normal use and service for a period of three years from date of purchase. In addition, Minuteman International,
Inc. will, at its option, honor labor warranty claims for the first 12 months from date of sale, provided such claims are submitted
through and approved by factory authorized repair stations. Minuteman International, Inc. will, at its option, repair or replace
without charge, except for transportation costs, parts that fail under normal use and service when operated and maintained in
accordance with the applicable operation and instruction manuals.
This warranty does not apply to normal wear, or to items whose life is dependent on their use and care, such as belts, cords,
switches, hoses, rubber parts, electrical motor components or adjustments. Parts not manufactured by Minuteman International,
Inc. such as engines, batteries, battery chargers, hydraulic pumps, and tires are covered by and subject to the warranties and/
or guarantees of their manufacturers. Please contact Minuteman International, Inc. for procedures in warranty claims against
these manufacturers.
Special warning to purchaser — Use of replacement filters and/or prefilters not manufactured by Minuteman International, Inc.
or its designated licensees, will void all warranties expressed or implied.
A potential health hazard exists without exact original equipment replacement.
All warranteed items become the sole property of Minuteman International, Inc. or its original manufacturer, whichever the case
may be.
Minuteman International, Inc. disclaims any implied warranty, including the warranty of merchantability and the warranty of
fitness for a particular purpose. Minuteman International, Inc. assumes no responsibility for any special, incidental or consequential
damages.
This limited warranty is applicable only in the U.S.A. and Canada, and is extended only to the original user/purchaser of this
product. Customers outside the U.S.A. and Canada should contact their local distributor for export warranty policies. Minuteman
International, Inc. is not responsible for costs or repairs performed by persons other than those specifically authorized by Minuteman
International, Inc. This warranty does not apply to damage from transportation, alterations by unauthorized persons, misuse or
abuse of the equipment, use of non-compatible chemicals, or damage to property, or loss of income due to malfunctions of the
product.
If a difficulty develops with this machine, you should contact the dealer from whom it was purchased.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. Some states do not
allow the exclusion or limitation of special, incidental or consequential damages, or limitations on how long an implied warranty
lasts, so the above exclusions and limitations may not apply to you.
World Headquarters Minuteman Canada, Inc.
Minuteman International, Inc. 2210 Drew Road
111 South Rohlwing Road Mississauga, Ontario
Addison, Illinois 60101 L5S 1B1
[phone] [phone] 983205
FAX [phone] FAX [phone] Printed in U.S.A.