Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4b-36
T
R O U B L E S H O O T I N G
- 3 0 8 4 E S
M O D E L
- - T
R O U B L E S H O O T I N G
B
A T T E R Y
C
H A R G E R
: E
L E C T R I C
NOTE: Over 1/2 of all battery chargers returned as “failed” are good. Please follow the troubleshooting procedures
carefully and check all other items before returning the charger.
Table 4b-6: Trouble Table - HB1500-48 Battery Charger
PROBLEM DIAGNOSIS
Charger does
not turn ON -
no LEDs
The AC plug must be disconnected and reconnected to start the charger once it has turned-off from a charge
cycle.
• Connect the AC supply cord securely to a live AC outlet (minimum 20-amp circuit)
• Check the AC outlet to ensure it is working and has 20-amp supply.
• Check that DC output wires and connections are in good working condition.
• Replace charger if everything else is correct.
Red
FAULT LED is
ON or
BLINKING
The faults identified below cause the FAULT LED to turn ON or BLINK. If the cause of the fault is removed the
charger restarts automatically.
• LED is ON
Weak or bad battery pack, bad cell, low electrolyte level or batteries excessively discharged.
• LED blinks once: OUTPUT CONNECTION ERROR
Check Battery and Charger Connection
- Connection may be corroded or loose
- Check for pinched or broken wires (may cause a short)
- Output may be connected in reverse polarity to batteries
(the charger is not damaged by any of these problems.)
Red
FAULT LED
BLINKS twice:
charger has
Timed-Out
The charger has a 22 hour timer - if charge cycle is not complete within 22 hours the charger will stop
charging.
• Possible Causes:
- Batteries are extremely discharged - unplug for 30 seconds then plug charger back in to restart and
complete charging.
- Electrolyte is low in one or more cells.
- Batteries are weak, old, or have one or more bad cells. Batteries will still charge but in a weakened
capacity - they should be replaced.
Batteries do not
fully charge
• Overnight Charging
- Make sure AC power supply is not being switched OFF at night
• NEW batteries
- New batteries sometimes require 20 to 30 charge/discharge cycles before they charge normally. 80% LED
after overnight charging is normal. Within a few weeks the 100% LED should light after overnight charge.
• OLD batteries
- Check for dead cells or reduced capacity.
AC Line circuit
breaker tripped
or fuse blown
• Overloaded Circuit
Minimum 20-amp service required. Plug charger into a different AC outlet on a different circuit. If charger
operates properly the AC line may require repair. If charger fails and AC line checks “good” the charger
should be replaced.