______1

C.

RECOMMENDED

MAINTENANCE

INTERVALS _______________________________________________________1

SECTION II: ON-STREET REPAIRS ________________________________________________________________________2

A.

CLEARING

JAMS __________________________________________________________________________________2

B.

REPLACING

COIN

CHUTE

AND/OR

CARD

READER ___________________________________________________3

C.

REPLACING

BATTERY_____________________________________________________________________________3

D.

TESTING

MODES __________________________________________________________________________________4

SECTION III: ROUTINE IN-HOUSE MAINTENANCE _________________________________________________________5

A.

INSPECTION

OF

THE

MECHANISM __________________________________________________________________5

B.

DISASSEMBLY

OF

MECHANISM ____________________________________________________________________5

C.

MECHANISM

CLEANING

AND

CONTACT

LUBRICATION ______________________________________________6

D.

UPGRADING

OR

REPLACING

SOFTWARE ____________________________________________________________6

E.

REPLACING

THE

BATTERY

CABLE__________________________________________________________________6

F.

REPLACING

THE

ROTARY

WHEEL __________________________________________________________________7

G.

REPLACING

THE

ROTARY

WHEEL

MOTOR __________________________________________________________7

H.

REASSEMBLY

OF

MECHANISM _____________________________________________________________________7

I.

TRAINING

FOR

ACCEPTABLE

COINS ________________________________________________________________8

SECTION IV: ELECTRONIC MESSAGES ____________________________________________________________________8

SECTION V: TESTING FOR NORMAL DC CURRENT DRAW__________________________________________________9

SECTION VI: TROUBLE SHOOTING GUIDE _______________________________________________________________10
Series II
APM-N Mechanism
Service Manual
Page 1 of 15
Revision Date: 10/17/2003
SECTION I: GENERAL INFORMATION

The procedures outlined in this manual
represent the best methods for maintaining and
repairing the POM Model Series II electronic
parking meter. It is advisable to read these
instructions carefully, as a clear understanding
will make the job of maintaining and repairing
the meters much easier.

A. FACILITY

It is important to have an adequate facility for
meter service requirements. The facility should
include the following:

1.
A workbench or table with anti-static pad
and good lighting.

2.
All necessary tools and supplies to
perform the task correctly.

3. Storage for spare parts and
mechanisms. Spare parts can be stored in
cabinets or special containers that feature
drawers with dividers. Spare circuit boards
should be stored inside anti-static bags. Spare
mechanisms are best stored on well-
constructed shelves with batteries or solar pak
removed. Spare batteries should be stored in
an environment with a dry, moderate
temperature for maximum shelf life. See
manufacturer suggestions for storage.

4.
Sturdy shelves or racks for storage of
spare complete meters or cases.

B.
LIST OF TOOLS REQUIRED

The following tools will be required to perform
routine maintenance and repairs on POM's
Model Series II-N parking meter. Substitution
of tools other than those recommended will
make the task more difficult and can cause
meter damage.

PART NO. DESCRIPTION


108-565
#1 Phillips Screwdriver

108-566
1/8"Slot Head Screwdriver

100-828
#2 Phillips Screwdriver
300-119
Dielectric
Compound

300-226
Camel Hair Brush

300-420
Digital Multi-Meter, DC

C. RECOMMENDED
MAINTENANCE
INTERVALS

Several variables affect the requirement for
maintenance of parking meters: frequency of
use, environment, and abuse. Because the
Series II-N has no moving parts in the
actuation of the meter, less preventive
maintenance should be required.

POM utilizes components that are rated for a
wide range of temperatures and other
environmental factors found in normally
inhabited regions. POM takes every step
possible in the manufacture and assembly of
electronic meters to make sure the finished
product resists extreme environments. POM
parking meters are inspected for quality of
material, workmanship, and proper operation
before shipment to the customer. However,
electronic meters, like mechanical meters,
have coin entrances and cannot be fully sealed
from environmental forces. Therefore, like
mechanical meters, electronic meters must be
routinely checked (and preventative measures
taken) for infiltration and corrosion, especially
in coastal or northern regions. The parking
meter technician should also check for buildup
of pollutants, dust, sand, or insect matter (i.e.
spider webs). As a guide, POM suggests that
routine preventive maintenance be performed
on each mechanism every 6 months to one Series II
APM-N Mechanism
Service Manual
Page 2 of 15
Revision Date: 10/17/2003
year. Failure to properly inspect and maintain
POM products may result in environmental
damage that is not covered under POM
warranty.

Meters should also be checked daily on the
street for coin jams, card jams, vandalism,
battery failure, or any other condition that
would affect the daily effectiveness of the
parking meter system. While this inspection
can be made by maintenance personnel, error
messages can also be detected and reported
by collection and enforcement personnel (see
"Error Messages").


SECTION II: ON-STREET REPAIRS

A. CLEARING
JAMS

The free-fall design of the Series II-N coin
chute is extremely resistant to jams. If,
however, someone is able to force paper or
other objects into the chute to prevent the free
passage of coins, the rear rotary status signal
will rotate to yellow. If there is time on the
meter, it will continue to run down, but after the
time reaches 00:00, the message "jAM" (upper
coin chute blockage) or JAM (blockage of
lower coin chute) will appear on the front
display. Series II-Ns with optional rear LCDs
will show OUT OF ORDER to indicate
jam/error. Approximately one minute after the
jam is cleared, the front and rear signals will
return to normal automatically. There is no
need to reset the meter.

To clear a coin chute jam:

1. Open the front of the mechanism housing,
laying it down horizontally.

2.
Unscrew the mounting screw just above
the battery cover and lift the mechanism from
the front door.

3.
Slide out the coin chute door at the top
of the coin chute. Turn the meter upside down
and shake out any loose coins or debris.
Gently pry out any remaining debris, preferably
through the top of the chute, being careful not
to damage the anti-backup finger in the chute.
Do not try to push debris through the bottom of
the chute, especially while the mechanism is
still in the housing. It will simply block coins
somewhere else.

4.
Wait a moment to see that the meters
displays return to their normal modes. It is
possible that some paid time may be remaining
on the meter, but this time will have been
running down during the jam period.

5.
If you want to test the mechanism with
coins, see "Testing Modes" so your test coins
do not affect the electronic audit. Reset the
meter to take it out of test mode, and put full
time on the mechanism if desired with the
handheld communicator.

6.
Reinstall the mechanism in the front
door and press the reset button.

7.
Return the front door to the upright
position.

To clear a card reader jam:

A card reader jam, an incompatible card, or a
card inserted incorrectly and left will cause
ERR to flash 3 times, followed by PULL
CARD flashing about 15 times. Meter will then Series II
APM-N Mechanism
Service Manual
Page 3 of 15
Revision Date: 10/17/2003
return to 00:00 with OUT OF ORDER
flashing.
If a card or other object is protruding from the
card reader, remove it carefully. If this is all
that is in the card reader, the meter will return
to its operational mode. If it does not, insert a
flat hook fashioned from thin, rigid plastic and
gently pull out any remaining debris.

If a coin chute or card reader is damaged by a
jam, or the jam cannot be easily removed on
the street, see Replacing Coin Chute and/or
Card Reader.

B.
REPLACING COIN CHUTE AND/OR
CARD
READER

A few spare coin chutes and card readers
should be kept in stock to replace any that may
become damaged. These components are
very easy to replace:

1.
Open the front of the mechanism
housing, laying it down horizontally.

2.
Unscrew the mounting screw just above
the battery cover and lift the mechanism from
the front door.

3.
Lift the battery cover by the side tabs,
and unplug the battery from the mechanism.

4.
Slide off the coin chute door, then grasp
and pull off the coin chute cover. The coin
chute and/or card reader will unplug from the
circuit board through their openings in the front
shell without the use of tools.

5.
Install the new coin chute or card reader
being careful not to bend the pins. Reinstall
the coin chute cover and coin chute doo