Clarke CA90 32T User manual

Clarke CA90 32T™
11/2015 - Form No. 56043170
Service Manual
Model Numbers:
Clarke 810T
English

Table of Contents iiService Manual – CA90 32T
Contents
Service Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Machine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Service Manual Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Other Reference Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Diagnostic and Service tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Parts and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Modications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Machine Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Machine Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Machine Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Prop Rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Machine Specications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chassis System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Maintenance and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Wiring Harness Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Electrical Circuit Diagram (Owner’s Manual) . . . . . . . . . . . . . . . . . . . . . 18
Electrical Circuit Diagram (ladder style) . . . . . . . . . . . . . . . . . . . . . . . .19
Battery Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Battery Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Recovery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Maintenance and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Check ball-oat operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Adjust pick-up tube adapter bracket . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Checking Vacuum motor carbon brushes . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Poor pick-up at squeegee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Vacuum motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Removal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Installation: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Table of Contents iiiService Manual – CA90 32T
Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Scrub System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Maintenance and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Adjusting the Scrub Deck height for best performance . . . . . . . . . . . . . . 36
Replacement of Carbon Brushes . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Brush Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Linear Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Removal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Component Specications (electrical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Solution System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Maintenance and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Solution Filter Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Resetting the Solution Flow Adjustment Knob. . . . . . . . . . . . . . . . . . . . .47
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Solution Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Squeegee System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Maintenance and Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Adjusting the Squeegee Assembly Angle . . . . . . . . . . . . . . . . . . . . . . . . 52
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Wheel System, Traction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Maintenance and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Transaxle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Speed Control Potentiometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Trigger Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Curtis Speed Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Shop Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

General Information 4Service Manual – CA90 32T
General Information
Machine Description
The CLARKE CA90 32T is a battery powered walk-behind automatic oor scrubber. It is intended for use in
large commercial facilities such as hospitals, schools, factories, and retail stores.
The CLARKE CA90 32T is equipped with (2) counter rotating pad/brush holders to provide a 32 inch
cleaning path.
The machine has (6) 6 volt batteries connected in series to provide 36 volts DC to the transaxle and other
systems.
Service Manual Purpose
The service manual is a resource for professional service technicians. It provides information for
understanding how the machine operates, where components are located, basic troubleshooting,
maintenance, and mechanical service operations.
Revision History
Date Revisions
11/15 Initial publication
Other Reference Manuals
Clarke 810T Operators manual (Includes Parts List Information) - Form number 56091127
Diagnostic and Service tools
In addition to a full set of metric and standard tools, the following are required to successfully and quickly
troubleshoot and repair of CLARKE commercial oor cleaning equipment.
• Digital Voltmeter (DVM) with current clamp
• Hydrometer
• Battery load tester for checking batteries
• Vacuum water lift gauge - Nilsk p/n 56205281

General Information 5Service Manual – CA90 32T
Conventions
Forward, backward, front, rear, left or right are intended with reference to the operator’s position. That is to
say, in the driving position, holding onto the handles on the control housing.
Parts and Service
Repairs should be performed by an Authorized Nilsk Service Center that employs factory-trained service
personnel and maintains an inventory of Nilsk original replacement parts and accessories.
Call the Nilsk Dealer for repair parts or service. Please specify the Model Number (same as the Part
Number) and Serial Number when discussing your machine.
Modications
Modications and additions to the cleaning machine which affect capacity and safe operation shall not be
performed by the customer or user without prior written approval Nilsk Inc. Unapproved modications will
void the machine warranty and make the customer liable for any resulting accidents.
Safety
The following symbols indicate potentially dangerous situations. Always read this information carefully,
and take all necessary precautions to safeguard people and property.
Machine Lifting
Machine Transportation
General Machine Description
The Clarke CA90 32T is a battery powered, walk-behind scrubber. It is a heavy duty machine built and
designed to clean large open areas of hard surface ooring. It is equipped with a gravity feed solution
system for dispensing cleaning solution onto the oor, (2) rotating brush motors for scrubbing, and a
recovery system for removing the dirty solution from the oor.

General Information 6Service Manual – CA90 32T
General Safety Instructions
Specic Cautions and Warnings are included to warn you of potential danger of machine damage or bodily harm.
This machine is for commercial use, for example in hotels, schools, hospitals, factories, shops and ofces other
than normal residential housekeeping purposes.
Warning! Be sure to follow these safety precautions to avoid situations that could cause severe personal injury.
• This machine should only be used by properly-trained and authorized personnel.
• This machine is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge.
• Avoid sudden stops when on ramps or inclines. Avoid abrupt sharp turns. Use low speed down ramps.
• Keep sparks, ame and smoking materials away from batteries. Explosive gases are vented during normal
operation.
• Charging the batteries produces highly-explosive hydrogen gas. Charge the batteries only in well-
ventilated areas away from open ame. Insure the battery compartment is open during the charging process.
Do not smoke while charging the batteries.
• Turn the Key Switch “OFF” and disconnect the batteries before servicing electrical components.
• Never work underneath a machine without safety blocks or stands to support the machine.
• Do not dispense ammable cleaning agents, operate the machine on or near these agents, or operate in
areas where ammable liquids exist.
• Do not clean this machine with a pressure washer.
Prop Rod
The Prop Rod holds up the recovery tank to allow access to the battery compartment, and is used during
battery charging. Before using the prop rod, empty the recovery tank. Also, insure the guide bolt is in the
latched position.
Prop Rod
Guide Bolt in Latched
position

General Information 7Service Manual – CA90 32T
Nameplate
The nameplate contains important identication information which will be needed when ordering parts:
Model number, Description, and Serial number.
Machine Specications
Specication Standard Metric
Cleaning Path 32 Inches 80 cm
Solution Tank 30 Gallons 115 l
Recovery Tank 28 Gallons 106 l
Pad Size 2 x 16 Inches 2 x 40.6 cm
Pad Pressure, variable Up to 200 Pounds Up to 91 kg
Squeegee Width 40 Inches 101.6 cm
Speed Control Variable - Forward/Reverse Variable - Forward/Reverse
Cleaning Productivity 34,560 Sq. ft/hr. 3211 Sq. m/hr.
Drive System .5 H.P. Transaxle Drive .37 kW Transaxle Drive
Wheels, Non-marking, Gray (2) 12 Inch, Foam Filled (2) 30.5 Cm Foam Filled
Brush Motor, RPM Speed 1 H.P., 200 RPM .74 Kw, 200 RPM
Vacuum Motor/Water Lift 3 Stage/73 Inches 3 Stage/186 cm
Optional Batteries Six 6 Volt - 250 amp./hour Six 6 Volt - 250 amp./hour
Charger 25 Amp. Shelf Charger 25 Amp. Shelf Charger
Run Time per Charge Approximately 4 1/2 - 5 hours Approximately 4 1/2 - 5 hours
Weight without Batteries 440.5 Lbs 200 kg
Shipping weight w/o Batteries 631 Lbs 286 kg
Dimensions 66.5 in x 41.3 in x 42.9 in 169 cm x 105 cm x 109 cm

General Information 8Service Manual – CA90 32T
Component Locations
Vacuum
Switch
Battery
Status
Indicator
Brush
Switch Hour
Meter Solution
Switch
Brush
Pressure
Meter
Brush UP/
DOWN Switch
Drain
Hose
Squeegee
Assembly
Circuit
Breakers
Rear
Casters
Solution
Sight
Tube
Squeegee
Lift Handle
Solution
Fill
(Hose)
Recovery Tank
Lid
Recovery Tank
Front Cover
Scrub Deck
Solution Tank
Control
Housing
Protective
Rollers
Scrub Deck
Doors
Transport
Wheels

General Information 9Service Manual – CA90 32T
Operating
Triggers
Reverse
Switch
Key switch
Solution ll
(Pail)
Console
Adjustment
Levers
Speed Control Knob
Solution Flow control
knob

General Information 10Service Manual – CA90 32T
Preventative Maintenance
DAILY WEEKLY MONTHLYMonthly
Recharge Batteries X
Remove and clean Pad driver/
Brush X
Drain and rinse recovery tank.
Check for solid debris X
Remove squeegee assembly, and
wipe it down with a damp cloth X
Remove the oat shut-off and
rinse thoroughly X
Clean off the machine with a
damp towel X
Check uid levels in battery
cells X
Check batteries for loose or
corroded connections X
Check Squeegee blades for wear
and/or damage X
Check machine for leaks and
loose fasteners X
Grease the rear casters X
Lubricate all pivot points with
a silicone Spray X
Thoroughly ush the solution
tank, drain hose, and vacuum
hose with hot water
X

Chassis System 11Service Manual – CA90 32T
Chassis System
Functional Description
The Clarke CA90 32T uses a welded steel chassis to support the machine. Bolted to the chassis are the
solution tank, transaxle, casters, squeegee bracket, and brush deck supports. Also, the main wiring harness
travels through one of the channels of the chassis.
Component Locations
The chassis is located underneath the solution tank, and above the transaxle and rear casters.

Control System 12Service Manual – CA90 32T
Control System
Functional Description
The CLARKE CA90 32T has (1) controller for the traction drive, and switches and solenoids for the other systems.
The traction drive controller is a Curtis model 1228-3430. The inputs for the Curtis Speed Control are B+, B - ,
Keyswitch enable, Forward/Reverse switch, and the Speed Control Potentiometer. When all of the inputs to the
Curtis Speed Control Board are within the proper range, the machine will move.
All of the controls are located on or in the machine control housing within easy reach of the operator.
Component Locations
• Curtis Controller
• System Switches
• Trigger switch
• Forward/Reverse Switch
• Speed control knob
• Solution Control knob
• Solenoids
• Circuit breakers (Located on the lower panel of the control housing)
Curtis Speed
Controller
Mounted in
control housing

Control System 13Service Manual – Machine Name
Vacuum
Motor Switch
Solution
Switch
Actuator Up/
Down Switch
Brush Switch
Trigger Switch
(looking up through lower
housing panel)
Forward/Reverse
Switch

Control System 14Service Manual – CA90 32T
Speed control
knob
Solution control
knob
MAIN Solenoid Brush Solenoid
Vacuum Solenoid
Circuit Breakers (Located on lower control housing panel

Control System 15Service Manual – CA90 32T
Maintenance and Adjustment
No maintenance or adjustment is required for the control system

Electrical System 16Service Manual – CA90 32T
Electrical System
Functional Description
The electrical system consists of switches, circuit breakers, and contactors mounted inside the control housing,
and inside the battery compartment. The battery charger is a “shelf” style charger which is 36 volts DC, and has
an output of 25 amps maximum.
The electrical system is powered by (6) 6-volt batteries for a total of 36 volts. Heavy cables connect the batteries
in series. A large gray main battery pack connector is used for connecting the batteries to the “shelf” battery
charger unit.
The control system will turn off the scrub system and recovery systems if the battery voltage drops too low to
prevent damage to the batteries due to excessive discharging.
The circuit breakers protect various circuits from excessive current.

Electrical System 17Service Manual – Machine Name
The machine wiring is color coded, and the wires are marked with yellow numbered bands corresponding to their
location on the Wiring Harness Diagram.

Electrical System 18Service Manual – CA90 32T
Wiring Harness Diagram
Electrical Circuit Diagram (Owner’s Manual)
20
023
VACUUM
SOLENOID
VACCUM MOTOR
CIRCUIT BREAKER
19
(14AWG RED)
B+
B -
07
BRUSH
SOLENOID
LEFT BRUSH
CIRCUIT BREAKER
11
(12AWG RED) 12
AMMETER
B+ B- M2
19
DRIVING MOTOR
SPEED
CONTROLLER
PCB
DIRECTION
SWITCH
KEY
SWITCH
DOWN
UP
BATTERY CAPACITY LIGHTS
R
F
5
21
56
66
8
1
CIRCUIT BREAKER
1
5
3
3
11
12 11
0
0
0
(16AWG BLU)
(16AWG BLU)
(16AWG BLU)
0
5
5
5
00
0
0
17
18
0
0
17
18
14
21
19
8
5
BRUSH
SWITCH SOLUTION
SWITCH
VACUUM
SWITCH
00
(14AWG RED)
0
(16AWG WHT)
(16AWG GRN)
(16AWG BLU)
(16AWG WHT)
(12AWG RED)
(12AWG RED)
(16AWG WHT)
(16AWG BLU)
(16AWG BLU)
(14AWG RED)
ACTUATOR
0(16AWG BLU)
0(16AWG BLU)
16 (14AWG BLK)
15 (14AWG RED)
01 (14AWG BLK)
13 (14AWG RED)
10
10
12
20
03
MAIN
SOLENOID
SOLUTION SOLENOID
ACTUATOR MOTOR
LEFT BRUSH MOTOR
RIGHT BRUSH MOTOR
VACUUM MOTOR
DRIVE MOTOR
+
_
03 (12AWG BLK)
5 (16AWG WHT)
0 (16AWG BLU)
13 (14AWG RED)
15 (14AWG RED)
20 (14AWG RED)
12 (12AWG RED)
12 (12AWG RED)
17 (16AWG BLU)
8 (16AWG GRN) 2 (16AWG GRN)
18 (16AWG BLU)
03 (12AWG BLK)
03 (12AWG BLK)
04 (14AWG BLK)
16 (14AWG BLK)
03 (12AWG BLK)
04 (14AWG BLK)
0 (16AWG BLU)
TRIGGER SWITCH
12A
35A
35A
RITHT BRUSH CIRCUIT BREAKER
M1
4.7K
2W
HOUR
METER
+
-
(4AWG RED)
02 (16AWG GRN)
01 (14AWG BLK)
0 (16AWG BLU)
14 (14AWG RED)
10 (12AWG RED)
10 (12AWG RED)
1 (16AWG WHT)
11 (12AWG RED)
6V BATTERY
_+
6V BATTERY
_+
6V BATTERY
+
_
6V BATTERY
_+
6V BATTERY
_+
6V BATTERY
+
_
+
_
+
_
9 (14AWG RED)
22
22
(4AWG BLK)
9
12 (12AWG RED)
(4AWG RED)
(4AWG BLK)
35A
(16AWG WHT)
(12AWG RED)
7
(16AWG WHT)
Rev.: C

Electrical System 19Service Manual – CA90 32T
Electrical Circuit Diagram (ladder style)
Key
Switch
Trigger
Switch
Solution Switch
Solution Solenoid
Brush Switch
Hour Meter
Brush
Solenoid
Left Brush Motor
Right Brush Motor
35A
35A
Ammeter
Actuator Motor
Actuator Switch
Driving Motor
Speed Controller
Direction Switch
Vacuum Switch
Vacuum Solenoid Vacuum Motor
35A
PCB Battery Capacity Lights
12A
Main Solenoid
Drive Motor
36V Battery

Electrical System 20Service Manual – CA90 32T
Battery Connections
• The batteries should be connected in series as shown in the diagram below.
• Battery terminals and cables should be cleaned and checked periodically.
• Apply a coating or protective spray on the cable connections to prevent corrosion.
Battery Charging
WARNING: Batteries emit hydrogen gas. Explosion or re can result from hydrogen gas. Keep sparks
and re away ! Keep battery compartment open when charging.
• Turn the key switch to the “OFF” position.
• Insure the recovery tank is drained.
• Open the recovery tank, and set the prop rod to hold the tank in the UP position.
• Plug approved charger into a grounded wall outlet before plugging the charger into the machine.
• Plug the charger into the GRAY connector attached to the battery pack.
• The charger will automatically begin to charge the batteries, and it will automatically shut down when
the charging cycle is complete.
• Upon completion of the charge, rst unplug the charger from the wall outlet, then dis-connect the charger
from the battery pack.
• Check the uid levels in the batteries after charging is completed.
• Re-connect the GRAY connector from the battery pack to the machine connector.