Lester 13810-74 Maintenance and service guide

Operating Instructions 101703C
LESTRONIC BATTERY CHARGER
MODEL 13810-33, -74
PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS
For correct operation of the equipment, it is important to read and be familiar
with this entire manual before installing and operating the charger.
DO NOT DISCARD THIS MANUAL AFTER READING.
LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS. IT MEANS:
BECOME ALERT—YOUR SAFETY IS INVOLVED.
IF YOU DO NOT FOLLOW THESE
SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR.
WARNING: NOT FOR USE WHEN DC CORD
IS PERMANENTLY CONNECTED TO THE
BATTERIES.
1. Connect power supply cord to properly grounded
outlet of the proper voltage and frequency as
specified on the charger nameplate. Circuit
breaker or fuse protection in the AC line must be
adequate to handle the input power requirements.
When it is necessary to use an AC extension cord
to the charger, use a three conductor, 12 gauge
cord with ground and keep as short as possible.
If DC output cord is connected to batteries,
charger will automatically turn on after a short
delay.
2. Connect DC output cord to batteries. Charger
turns on automatically. To prevent arcing and
burning of the battery and charger plug contacts,
be sure to attach the plugs firmly and securely
together.
CAUTION: DO NOT REMOVE DC CORD
FROM BATTERIES WHEN CHARGER IS
OPERATING. IF CHARGE CYCLE MUST BE
INTERRUPTED, DISCONNECT POWER SUPPLY
CORD BEFORE REMOVING DC CORD.
3. Monitor ammeter for correct charge rate. Refer to
instructions printed on charger case to determine
proper charge rate. Normal charging at the finish
charge rate for the last 3 to 5 hours is important to
achieve equalization of all battery cells every time
the batteries are charged. New batteries or
batteries charged in cold temperatures (below
50°F) will require more time to achieve full charge.
4. Charger turns off automatically when batteries are
fully charged.
CAUTION: IN THE UNLIKELY EVENT THAT
THE CHARGER DOES NOT TURN OFF
AUTOMATICALLY, OVERCHARGING AND
POSSIBLE BATTERY DAMAGE MAY RESULT.
FOR BEST BATTERY LIFE, CHECK TO BE SURE
THE CHARGER HAS TURNED OFF PROPERLY
AFTER EACH CHARGE CYCLE.
*01703*

Operating Instructions 201703C
WIRING DIAGRAM
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PARTS LIST FOR LESTRONIC II CHARGER
MODEL 13810-33, -74 TYPE 12LC20-4ET
115 VAC / 60 HZ
PART NO. DESCRIPTION
16573S CASE ASSEMBLY, LESTER
26259S CASE ASSEMBLY, AAR POWERBOSS
09464S TRANSFORMER ASSEMBLY
16354S HEATSINK ASSEMBLY, W/ DIODES
15443S AMMETER
11355S ELECTRONIC TIMER ASSEMBLY
04142S CAPACITOR, 3.0 MFD, 660 VAC
15488S BUSHING, SR-5KN-4, INSULATOR FOR DC CORD
03894S BUSHING, 7K-2, INSULATOR FOR AC CORD
16571S CORDSET, AC
08607S CORDSET, DC, W/ SB50 AMP GRAY PLUG
25328S CORDSET, DC. W/SB175 AMP YELLOW PLUG
16567S SWITCH ASSEMBLY
19724S CIRCUIT BREAKER, 30 AMP
05468S SWITCH, ROCKER, LOW VOLTAGE START
15446S RELAY, 12V, 10 AMP, SPST
10375S FUSEHOLDER, BUSS
15554S FUSE, 5 AMP, MDA-5
This charger must be connected to an appropriate outlet that is properly installed and grounded.
DANGER! IMPROPER GROUNDING OF THIS CHARGER CAN RESULT IN A RISK OF ELECTRIC SHOCK.
DO NOT USE THIS CHARGER IN WET OR DAMP LOCATIONS.

Operating Instructions 301703C
L I M I T E D W A R R A N T Y
Minuteman warrants each new Battery Charger for defects in material and workmanship for a period of one (1) year from
the date of manufacture of the complete unit. Repairs can be made at the Minuteman factory. To do so, send the defective
unit with transportation charges prepaid to: Minuteman, Inc.
111 South Rohlwing Road
Addison, Illinois 60101
Attention: Service Department
For repairs made at other than the Minuteman factory, Minuteman will provide only the replacement parts.
Defective parts should be sent with transportation charges prepaid to the Minuteman factory at the address noted
above.
If the unit or parts are found in the reasonable judgment of Minuteman to be defective in material or workmanship, repair or
replacement will be made by Minuteman without charge for parts or labor. Repair or replacement will be at the discretion of
Minuteman, with replacements being made using current models or parts performing the equivalent function. Labor charges
other than those incurred at the Minuteman factory are not covered under this warranty. All expenses associated with
delivering defective items to the Minuteman factory and the expense of returning repaired or replaced items from the
Minuteman factory to the owner will be paid for by the owner. All warranty work accomplished at the Minuteman factory will be
completed with a reasonable time after receipt of defective items.
This warranty does not cover any semiconductor parts, such as diodes, which are vulnerable to electrical overloads beyond
the control of Minuteman. Warranty on parts not manufactured by Minuteman, which include, but are not limited to, timers and
ammeters, is limited to the period specified in the original manufacturer's warranty.
This warranty does not cover any charger that has been subject to misuse, neglect, negligence, or accident, or
operated in any way contrary to instructions specified on the charger case and in the owner's manual. No claim of
breach of warranty shall be cause for cancellation of the contract of sale of any Minuteman charger. Minuteman
assumes no responsibility for loss of time, inconvenience, or other damage, consequential or otherwise, resulting
from a defective charger. All implied warranties (including merchantability) are limited in duration to the one year
from date of manufacture warranty period.
Some states do not allow the exclusion or limitation of incidental or consequential damages; or limitations on how long an
implied warranty lasts, so the above limitations may not apply to you. This warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.
Minuteman's obligation under this warranty is strictly and exclusively limited to the repair or replacement of defective items.
Minuteman issues this warranty in good faith and with full confidence in the workmanship and quality of Minuteman products.