Mec 3072ES, Руководство по обслуживанию и запасным частям

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PROBLEM DIAGNOSIS
October 2008 "3072ES / 3772ES / 3772ES HD" Service & Parts Manual
Page 4-40
Trouble Table, HB1500-48 Battery Charger
• Co nn ect the AC su pply co r d s ec ur ely to a live AC o u tlet.
• Check the AC o u tlet to e nsur e it i s wo r ki n g.
• Check that DC o u tp u t wi r e s a n d co nn ectio ns a r e i n good wo r ki n g co n ditio n .
• Replace cha r ge r if eve r ythi n g el s e i s co rr ect.
Charger does
not turn ON
The AC plug must be disconnected and reconnected to start the charger once it
has turned-off from a charge cycle.
• LED o s ON
Weak o r bad batte r y pack, bad cell, o r low elect r olyte level.
• LED bli n k s o n ce: OUTPUT CONNECTION ERROR
Check Batte r y a n d Cha r ge r Co nn ectio n
- Co nn ectio n may be co rr oded o r loo s e
- Check fo r pi n ched o r b r oke n wi r e s (may ca us e a s ho r t)
- O u tp u t may be co nn ected i n r eve rs e pola r ity to batte r ie s
(the cha r ge r i s n ot damaged by a n y of the s e p r oblem s .)
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.
• Po ss ible Ca us e s :
- Batte r ie s a r e ext r emely di s cha r ged - un pl u g fo r 30 s eco n d s the n pl u g cha r ge r
back i n to r e s ta r t a n d complete cha r gi n g.
- Elect r olyte i s low i n o n e o r mo r e cell s .
- Batte r ie s a r e weak, old, o r have o n e o r mo r e bad cell s . Batte r ie s will s till cha r ge
b u t i n a weake n ed capacity - they s ho u ld be r eplaced.
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.
• Ove rn ight Cha r gi n g
Make sur e AC powe r su pply i s n ot bei n g s witch OFF at n ight
• NEW batte r ie s
New batte r ie s s ometime s r eq u i r e 20 to 30 cha r ge/di s cha r ge cycle s befo r e they
cha r ge n o r mally. 80% LED afte r ove rn ight cha r gi n g i s n o r mal. Withi n a few
week s the 100% LED s ho u ld light afte r ove rn ight cha r ge.
• OLD batte r ie s
Check fo r dead cell s o r r ed u ced capacity.
Batteries do not
fully charge
AC Line circuit
breaker tripped
or fuse blown
• Ove r loaded Ci r c u it
Pl u g cha r ge r i n to a diffe r e n t AC o u tlet o n a diffe r e n t ci r c u it. If cha r ge r ope r ate s
p r ope r ly the AC li n e may r eq u i r e r epai r . If cha r ge r fail s a n d AC li n e check s
“good” the cha r ge r s ho u ld be r eplaced.