Output Connector Circuit - Yale 524150797 Maintenance Manual

Troubleshooting
Figure 9. Q-Series Schematic
WARNING
DO NOT DISASSEMBLE THE CHARGER. TAKE IT
TO A QUALIFIED SERVICE AGENT WHEN SERV-
ICE OR REPAIR IS REQUIRED. INCORRECT RE-
ASSEMBLY MAY RESULT IN A RISK OF ELEC-
TRIC SHOCK OR FIRE. THE FOLLOWING PROCE-
DURES ARE INTENDED ONLY TO DETERMINE IF
A MALFUNCTION MAY EXIST IN THE CHARGER.
WARNING
TO REDUCE THE RISK OF ELECTRIC SHOCK, AL-
WAYS DISCONNECT THE CHARGER'S AC CORD
SET FROM AC POWER AND ITS DC CORD SET
FROM BATTERIES BEFORE ATTEMPTING ANY
MAINTENANCE OR CLEANING.
LEDs Frozen (no activity) or Charger Seems Inop-
erable: Battery may have been subjected to an Over-
Discharge condition. Using a voltmeter check if bat-
tery voltage is well under its 100% depth of discharge
level defined as 1.75V per cell for lead acid batteries.
For example, if a 24V lead acid battery measures well
under 21V, then this condition may have occurred as
a result of batteries left in lengthy storage without a
trickle charge applied to it. Try removing the output
leads from the battery pack (while A.C. Power is dis-
connected from the charger) and reconnecting the
output leads.
Batteries Hot To Touch - Charger Continues To
Charge: A hot battery signifies cells that are: Shorted
due to material coalesced at the bottom of the cell
12
and not able to break down and recombine back onto
the battery plates; stratification of the acid into layers
where a denser acid layer is carrying most of the am-
perage; an overcharged cell due to other cells being
unbalanced and at a much lower state of charge. Pos-
sible corrections include: Cease charging, operate ve-
hicle to slightly discharge battery pack, and then re-
charge. Replace defective battery in the battery pack
and check charger mode settings and ensure it is
properly set to the battery selected to charge.

Output Connector Circuit

1. 7-CIRCUIT CONNECTOR
2. ALIGNMENT NOTCH
3. BATTERY CHARGE OUTPUT POSITIVE (+), PIN
3
4. VEHICLE LOCKOUT (INHIBIT) POSITIVE (+),
PIN 4
5. BATTERY CHARGE OUTPUT NEGATIVE (-),
PIN 5
6. NO CONNECTION - NOT TYPICALLY INSTAL-
LED, PIN 6
7. VEHICLE LOCKOUT (INHIBIT) NEGATIVE (-),
PIN 7
Figure 10. 7-Circuit Output Connector
2200 YRM 2030