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 REQUIREMENTS: This piece of equipment operates on 36 Volt DC. BATTERY REQUIREMENTS: 6 x 6V 220AH P/N 956720 6 x 6V 275AH P/N 956740 BATTERY SERVICE AND INSTALLATION: * Warning: Battery acid can cause burns. When working on or around batteries, wear protective clothing and safety glasses.
CONTROL PANEL IDENTIFICATION 1. Vacuum recovery hose 2. Solution control lever 3. Hour meter (optional) 4. Circuit breaker for vacuum motor 5. Circuit breaker for brush motor 6. Drain hose recovery tank 7. Drain hose solution tank 8. Drain hose for battery tray 9.
SQUEEGEE ADJUSTMENTS Squeegee Adjustment The squeegee set-up is pre-adjusted at the factory. Adjustments may be required to get optimum performance for different floors and conditions. 1. Pitch Control Adjustment 2. Ensure that the scrubber is on a relatively flat surface. Turn on the main power switch and raise the scrub head assembly off the floor.
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.
MAINTENANCE OF MACHINE VACUUM MOTOR Motor brushes can be replaced with Brush Set, Part No. 741008. Brushes should be replaced only once. More than once brush replacement will cause very high current consumption. This undue current consumption lowers overall machine performance and is not in the best interest of economical machine use.
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TROUBLE SHOOTING 1. Inefficient scrubbing - floors are smeared in appearance. Solution: Use proper type and correct amount of detergent. Replace worn or damaged scrub attachments. Increase force on scrubbing head. 2. Squeegee streaks. Solution: Check rear squeegee rubber for imbedded objects, clean; reverse, or replace if worn or damaged.
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Parts List Item Part No. Qty. Description 320122 Console Machined 320730 Mainframe PowerBoss 32/38 320300PB Solution Tank Assembly 320200 Recovery Tank Assembly 320146B Recovery Lid Burgundy 320220 Vacuum Hose Long 260203 Wire Grip Hose Clamp 320222 Gasket 320178 Water Shut-Off Plate 712540 SCR-MC 10-24 x .37 SS TH 712102...
320300PB SOLUTION TANK ASSEMBLY Item Part No. Qty. Description 260029 Solution Lid 320120 Solution Tank 450021 Hinge 712764 WSR-SS #10 712540 SCR-MC 10-24 x .37 SS TH 832949 Bracket - Bumper 832896 Guide Wheel 833254 Bumper Wheel Axle 710985 SCR-SC 3/8-16 x .62 710353 SCR-MC 10-32 x .37 711553...
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Parts List Item Part No. Qty. Description 260041 1/2” Oilite Bushing 711579 WSR-Flat .56 x 1.00 x .100 320732 Link, Brush Press, Adj. 320174 Switch Bracket 320175 Bracket Arm 320213 Splash Guard 320214 Retainer Strap 320236 Vacuum Pipe Weldment 320450 Squeegee Mech.
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Parts List Item Part No. Qty. Description 320215 Battery Tray Liner 320118 Battery Tray 840011 Vac Motor Cover, Top 840012 Vac Motor Cover, Bottom 840012CTD Vac Motor Cover, Bottom (CE) 380064 Foam Ring 740228 Vac Motor 36V 3-Stage 290017 Molded Gasket 320119 Motor Platform 320185...
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Parts List Item Part No. Qty. Description Item Part No. Qty. Description 210045 Cable Solution Control 712536 SCR-MC 10-24 x .62 STPL 210413 Return Springs 712540 SCR-MC 10-24 x .37 TH 260066 3/8 Oilite Flanged Bushing 712638 Nut-Hex 10-24 SS Nyloc 260069MCH Left Handle 712764...
320450 SQUEEGEE MECHANISM ASSEMBLY Item Part No. Qty. Description 320160 Yoke Weldment 320162 Spring Housing Weldment 320008 Pivot Bracket Weldment 210375 Swivel Pin 260041 1/2 Oilite Bushing 210391 Torsion Spring SS 711671 Clevis Pin 5/16 x 2.125 712536 SCR-MC 10-24 x .62 210400 Spacer Tube 710592...
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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.