Caution – Associated Equipment 6021 User Manual
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20.
LENGTH OF CHARGE
a.
Test the battery for state of charge. Do not charge if it is over 75% charged or the battery is determined to be defective.
b.
Set beginning amps charge rate for size of battery and state of charge per charts
c.
Charge for length of time per chart.
d.
Discontinue charge when the specific gravity of electrolyte reaches 1.260 or above. A temperature compensating hydrometer should be
used for this reading. Discontinue charge if the battery begins to gas excessively or when the temperature of the electrolyte reaches
approximately 120
EF. Do not overcharge batteries. Overcharging results in excessive water loss and eventual damage to the battery.
BATTERY SIZE TABLE
Battery Size
Small
Medium
Large
Ampere Hours
40
60
80+
Reserve Capacity
60
90
100+
Cold Cranking Amps
275
350
400+
STATE OF CHARGE TABLE
State Of Charge
75%
50%
25%
DEAD
Specific Gravity
1.225
1.185
1.140
1.110
Open Circuit Voltage 6V
6.2
6.05
5.95
5.9
Open Circuit Voltage 12V
12.4
12.1
11.9
11.8
Open Circuit Voltage 24V
24.8
24.2
23.8
23.6
CHARGE RATE Vs MINUTES CHARGE
Battery Size
% Charge
A
M
P
E
R
E
S
MINUTES
15
30
45
60
75
90
0–25%
45
30
30
25
25
20
Small
25–50%
30
20
20
15
15
10
50–75%
15
10
10
10
5
5
0–25%
70
50
45
40
35
30
Medium
25–50%
45
30
25
20
20
20
50–75%
25
15
15
10
10
10
0–25%
90
55
55
50
45
45
Large
25–50%
60
40
35
30
30
30
50–75%
30
20
20
15
15
15
21.
ASSEMBLY INSTRUCTIONS
1.
Remove the four screws from the back of charger and attach the handle in an upright position.
2.
Remove the four screws on the bottom toward the front of the charger and attach the leg with the screws
provided.
3.
Put one of the axle nut on one side of the axle by tapping the nut on with a hammer. Then slide the axle
through one of the wheels and then through the hole in the charger until it comes out the other end. Put the
other wheel and axle nut on.
22.
OPERATING INSTRUCTIONS
CAUTION
- This battery charger must be fully assembled before operating. Failure to do so may result in
risk of injury.
TO CHARGE BATTERIES
Make the connections to the battery per the instructions in the previous sections.
Determine if the battery is 6 or 12 volts. Set the CHARGE VOLTAGE switch to 6/12 LO CHARGE for a 6 or 12
volt battery. If higher rate is desired, set at 12 HIGH. DO NOT charge a 6 volt battery at setting other than 6/12
low or charge any battery on 12V engine start.(Damage may occur to the battery.) Turn the timer on and the
Ammeter will show the amount of current delivered to the battery. Length of charge should be per the above
chart and instructions.
12 VOLT ENGINE START
Turn off all lights and accessories in the stalled vehicle. Connect the charger to battery per previous instructions. Charge the battery on 12 HI for
at least five minutes before attempting to start the vehicle. Put the switch in the 12V ENGINE START position. Start the vehicle with the charger
connected to the battery. Follow the duty cycle on the unit.
NOTE: DO NOT crank the engine more than 20 seconds in any five minute period; excessive cranking may overheat and damage the starter. If
the vehicle fails to start, while waiting for the starter to cool, allow the charger to continue to charge the battery. Turn the switch to OFF and
remove the AC power cord from the electric outlet before disconnecting the DC clamps.
BATTERY LOAD TEST
This test evaluates the battery's ability to crank an engine. The tester draws current from the battery while measuring its voltage level. The
voltage level of a good battery will remain relatively steady under load, but a defective battery will show a rapid loss in voltage. Battery size