Invacare P9000 Motor Testing Figure, Procedure Troubleshooting, Number of Floating Balls

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PROCEDURE 2

TROUBLESHOOTING

T R O U B L E S H O O T I N G

WARNING

ONLY use distilled water when topping off the battery cells.

Most batteries are not sold with instructions. However, warnings are frequently noted on the cell caps. Read them carefully.

1.Remove the battery box(es). Refer to one (1) of the following:

A.FWDWHEELCHAIRS:INSTALLING/REMOVING BATTERY BOXES in PROCEDURE 8 of this manual.

B.RWDWHEELCHAIRS:INSTALLING/REMOVING BATTERY BOXES in PROCEDURE 9 of this manual.

2.Remove the battery caps from the battery.

3.Squeeze the air from the hydrometer.

4.Place the hydrometer into a battery cell.

NOTE: DO NOT fill hydrometer more than 3/4 full.

5.Draw up sufficient acid to cover float balls.

6.Tap lightly to remove air bubbles.

7.Number of floating balls indicates charge.

Number of Floating Balls

0

Discharged

1

25% Charged

2

50% Charged

3

75% Charged

4

100% Charged

* 5

Overcharged

* Check charging system.

Number of Floating

Balls Will Vary

According to Charge

8.Flush the liquid back into the same cell after reading the float. Repeat this step until all cells have been properly read. A shorted or dead cell can be detected when it is the only cell that does not charge.

9.Flush hydrometer in cold running water by allowing the water to rise into hydrometer as far as possible. Do this several times to guard against burn damage.

10.Replace the battery caps.

11.Reinstallbatteryboxes.Refertoone(1)ofthefollowing:

A.FWDWHEELCHAIRS:INSTALLING/REMOVING BATTERY BOXES in PROCEDURE 8 of this manual.

B.RWDWHEELCHAIRS:INSTALLING/REMOVING BATTERY BOXES in PROCEDURE 9 of this manual.

MOTOR TESTING (FIGURE 3)

1.On the 4-pin motor connector, locate the two (2) contacts in the red and black housings.

2.Set the digital multimeter to measure ohms (Ω ).

3.Measure the resistance between the two (2) motor contacts.

NOTE: A normal reading is between 1 and 5 ohms (Ω ). A reading of 0 ohms (Ω ) or in excess of 15 ohms (Ω ) indicates a problem. High readings are generally caused by bad connections and/or damaged brushes. Contact authorized dealer or Invacare.

Ohmmeter

Motor Connector

FIGURE 3 - MOTOR TESTING

FIGURE 2 - USING A HYDROMETER TO CHECK BATTERY CELLS (LEAD ACID)

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Contents Excel and P9000 R N I N G E C I a L T E STable of Contents Specification S SpecificationsPower I F I C a T I O N SProcedure General Guidelines Repair or Service InformationUsing Hydrometer to Check Battery Cells Lead Acid Figure Troubleshooting ProcedureBattery Charger Connector Digital Voltmeter Field Load Test FigureMotor Testing Figure Procedure TroubleshootingNumber of Floating Balls Check charging systemCap Pin Motor Connector OhmmeterCap Motor Replacing Back Upholstery Figure H O L S T E R YBack Upholstery Washer Phillips Screw Tie Wrap Mounting Hole Locknuts Washer Hex ScrewsAdjusting Seat Depth Figure Adjusting Back HEIGHT/ Replacing Back Canes FigureSeat Frame Procedure A T M EProcedure Electronics Mkiv Joystick Mounting Tube Adjustment Lock LeverPreparing Mkiv Joystick for USE Figure Repositioning Mkiv Joystick FigureREMOVING/INSTALLING Drive Wheels Figure Wheels ProcedureInstalling Replacing Pneumatic TIRES/ Tubes Drive WHEELS/CASTERSReplacing Forks Figure Procedure WheelsReplacing Casters Figure T T E R I E S Batteries ProcedureBattery Terminals/Posts U1 Battery Box Bottom Dual 22 NF T T E R Connecting Battery CablesDual U1 or Dual 22NF Battery Boxes Batteries Battery Clamp Method Figures 4, 5 Positive + Battery Terminal/Post Hex NutBattery Clamp CoverR I E S Positive + Battery Terminal Post and Battery ClampRED Battery Refer to Battery Tray in this proce- dure of the manual Assembling ExcelA I R S Unfolding/Folding Integrated Sling Seat FigureAdjusting FLIP-UP Removable Footboard FWD WheelchairsUnfolding/Folding Captains Seat Figure Push Brackets Pivot Link CrossbracesHeight Figure Replacing Armrest Pads FigureReplacing Armrest Plate Figure Replacing Captains Seat Figure Steps 7 Steps 3Replacing Wiring Harness FWD Wheelchairs ProcedureSteps 2 Steps 5Adjusting Limit Switch Figure Limit Switch Phono Plug Body Phono JackREMOVING/INSTALLING Shrouds Installing Side Shrouds and Fillers Filler Side Shroud Battery Box Battery Tray Phono JackPhillips Screws Locknut Retaining StrapChanging Seat Width Integrated Sling Seats Figure 16-18 orReplacing Crossbraces Captains Seat Figure Washer Steps 6 Pivot Link Hex Bolts Hex Bolts Steps 6 CrossbraceSpacerLocknut SpacerWhen to Charge Batteries Figure Description and Use of Battery ChargersCharging Batteries Figure Required ItemsINSTALLING/REMOVING Battery Boxes Figure Recommended Battery TypesCleaning Battery Terminals Replacing BatteriesBattery Tray Folding Battery Tray for Transport FigureUnfolding Battery Tray for Use Figure Changing Width of Battery Tray FigureInstalling Battery Tray Figure Replacing Right Battery Tray Hanger Bracket FigureRemoving Battery Tray Figure Footboard Mounting Bracket Battery Tray Hanger Bracket Replacing Left Battery Tray Hanger Bracket FigureRepositioning Motors Figure Spacer Hex ScrewUsers Weight 201 to 250 LBS Rotate battery tray hanger bracket upReplacing Clutch Handles Figure Clutch HandlePin Steps 3 Clutch Handle Steps 9Steps 4 17, 18Assembling Power 9000 Figure Refer to INSTALLING/REMOV ING Footrests or InstallUnfolding/Folding the Wheelchair Seat Rails GuidesWait until charging is complete Battery Discharge IndicatorRWD Wheelchairs Connect the battery box retaining strap clip together Retaining Strap Clip14-15, 16-18 Battery Tray FigureChanging Seat Width Figure Adjusting SEAT-TO-FLOOR Height H a I R SDisassembly ReassemblyPhillips Screws To Controller From MotorsUnderside of Motor Mount Plate Alignment Pin Long Socket Motor MountPlate Alignment Hole Wheelchair Frame Support Tube Motor/GearboxLimited Warranty R R a N T YChedworth Way
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