Pelco C343SM User Manual

®

PT480

Legacy® Series

Pan/Tilts

Maintenance/

Service Manual

C343SM (12/98)

Pelco • 3500 Pelco Way, Clovis • CA 93612-5699 USA • www.pelco.com

In North America and Canada: Tel [phone] or FAX [phone]

International Customers: Tel [phone] or FAX [phone]

CONTENTS

Section Page

1.0 GENERAL..................................................................................................3

1.1 IMPORTANT SAFEGUARDS AND WARNINGS ...............................3

2.0 DESCRIPTION ..........................................................................................4

2.1 MODELS............................................................................................4

3.0 MAINTENANCE.........................................................................................4

4.0 WIRING DIAGRAMS .................................................................................6

5.0 EXPLODED ASSEMBLY DIAGRAMS .......................................................7

6.0 WARRANTY AND RETURN INFORMATION ...........................................12

LIST OF ILLUSTRATIONS

Figure Page

1Pan and Tilt Adjustments ...................................................................5

2 PT480 Series Wiring Diagram ...........................................................6

3 Exploded Assembly Diagram of Mechanical Parts ............................7

4 Exploded Assembly Diagram of Hardware .......................................10

LIST OF TABLES

Table Page

A Mechanical Parts List (Figure 3) ........................................................8

B Hardware Parts List (Figure 4)..........................................................11

REVISION HISTORY

Manual Date Comments

C343SM 12/98 Original version.

2 Pelco Manual C343SM (12/98)

1.0 GENERAL

1.1 IMPORTANT SAFEGUARDS AND WARNINGS

Prior to installation and use of this product, the following WARNINGS should be
observed.

1. Installation and servicing should only be done by qualified service personnel
and conform to all local codes.

2. The weight of the camera/lens and enclosure shall not exceed 20 lb (9.07 kg)
– subject to specific pan/tilt unit.

3. Only use replacement parts recommended by Pelco.

4. After replacement/repair of this unit’s electrical components, conduct a resis­tance measurement between line and exposed parts to verify the exposed
parts have not been connected to line circuitry.

5. The installation method and materials should be capable of supporting four
times the weight of the enclosure, pan/tilt, camera and lens combination.

The product and/or manual may bear the following marks:

This symbol indicates that dangerous voltage constituting a
risk of electric shock is present within this unit.

This symbol indicates that there are important operating and
maintenance instructions in the literature accompanying this
unit.

CAUTION:

RISK OF

ELECTRIC SHOCK.

DO NOT OPEN.

TO REDUCE THE RISK OF ELECTRICAL SHOCK,

DO NOT REMOVE COVER. NO USER-

SERVICEABLE PARTS INSIDE. REFER SERVICING

TO QUALIFIED SERVICE PERSONNEL.

CAUTION:

Please thoroughly familiarize yourself with the information

in this manual prior to installation and operation.

Pelco Manual C343SM (12/98) 3

2.0 DESCRIPTION

The PT480 Legacy® Ser ies pan/tilt units are designed for medium-duty, indoor/
outdoor use.

Only the EH4700L Legacy® Series environmental enclosures can be mounted on
the pan/tilt units. P elco’s RediLINK™ connector makes it simple and quic k for y ou to
install an enclosure. The weight of the enclosure with camera and lens must not
exceed 20 pounds (9.07 kg).

You can easily remove the clamshell covers from the sides of the pan/tilt units to
access all internal parts without having to remove the camera enclosure. This makes
it easy to service the units and to adjust the pan and tilt limit stops.

2.1 MODELS

The PT480 Series consists of the following models:
PT480P Medium-duty, indoor/outdoor pan/tilt, 120 VAC.

PT480P/PP PT480P with preset positioning capabilities.
PT480-SL PT480P with 360° pan rotation.
PT480SL/PP PT480SL with preset positioning capabilities.
PT480-24P Medium-duty, indoor/outdoor pan/tilt, 24 VAC.
PT480-24P/PP PT480-24P with preset positioning capabilities.
PT480-24SL PT480-24P with 360° pan rotation.
PT480-24SL/PP PT480-24SL with preset positioning capabilities.

3.0 MAINTENANCE

If you need to remove the enclosure, protect the RediLINK™ connector area against
moisture, dust, dirt, etc. Failure to do so could result in a bad connection. Also,
damage to the pan and tilt unit or enclosure could occur when power is turned on.

The following servicing should be done every six months with average use.

1. Remove the PT480’s outer casing.
a. Remove the Phillips screw on each side of the pan and tilt unit.
b. Place your hands under the cover halves. Exert a strong, upward force

to release the covers from their internal latching devices.

c. Pull the cover halves away from the pan and tilt unit. Set the covers down

or hang them by the eyelets inside the covers. (The wire and hook on
which to hang the covers is not provided.)

2. Inspect the gaskets around the cover, tilt shaft, and spindle for damage.

3. Refer to Figure 1. It shows the par ts locations of the tilt assembly. Look for
similar orientations of parts when adjusting the pan assembly.

4. Check the backlash adjustment.
Backlash is the slack or binding in a pan and tilt base mount. Determine back­lash by lifting the maintenance assembly, grasping the base, and wiggling it.
There should not be any play or binding between the gear (A) and worm drive
(B). Play or binding indicates a backlash problem.

• One backlash problem involves a worm and worm gear connection loose

enough to cause slipping or tight enough to cause binding.

• The second involves a too-loose or too-tight chain, usually causing symp-

toms similar to the worm and worm gear problem–slipping or binding.

4 Pelco Manual C343SM (12/98)