Kodak Carousel S-AV 2050 Manuel d'utilisation

Slide Projector Maintenance

MAINTENANCE: Kodak S-AV 2050 slide projectors

Kodak S-AV 2050: front view Kodak S-AV 2050: side view with carousel Kodak S-AV 2050: dismantled

The below maintenance tasks are based on our experiences when looking after slide-based artworks

across multiple Tate sides. Rather than responding to failure during opening hours, our approach is

driven by pre-emptively minimising its chance. In order to keep track of the maintenance carried out

please set up a maintenance log that notes the action taken as well as any problems that occurred during

the course of the display.

The following items are required:

- ‘3-In-One’ lubrication oil and grease

- Oil free air compressor or compressed air cans

- Lint free tissue, anti-static brush

TWICE A WEEK AND WEEKLY MAINTENANCE

The lamp inside the projector needs to be changed twice a week. It is important that this is done

before the lamp fails. A schedule can be set up based on the average 40 hours life expectation of the

lamp. It is necessary to wear gloves when changing the lamp as grease spots on the lamp reduces its

life and cause them to blow prematurely.

The slide projector needs to be cleaned once a week by a trained AV technician. This includes

dusting the outer body of the projector as well as the lens and optical path (there are 4 lenses and

filters inside the projector). The cleaning of the projectors optics, such as the lens, condenser and

heat filter should be carried out using a soft lint e cloth or an anti-static brush.

If the projector begins to make a squeaky noise, this is usually caused by the ventilation wheel inside

being dusty and/or that the bearings may need lubrication.

MONTHLY BASIS

Once a month a deep clean needs to be carried out on the slide projector. Dirt and dust can have

adverse effects on the lubricants used on the rotating parts inside the slide projector and thus may

lead to malfunctioning.

See detailed maintenance instructions at the end of the report. This will take circa 40 minutes for

each.

Lamp bracket with latch Lamp brackets in

above outwards position

E D C B A

A B

INSTRUCTIONS

LAMP CHANGING

Lamp Specification: 250W Halogen / Osram A1/223 / 24V

Please wear gloves when changing the bulb. In order the

access the lamps, open the lamp house door. Push the

rapid lamp changer at the rear side of the projector all the

way to the right until it stops. There is a small latch above

the lamps which needs to be pushed in order to free the

lever. Then pull the lever gently towards you which will

provide access to the bracket on which the lamps sit.

Remove the defective lamps and push the lever

inwards. Make sure that the lever is not catching which

will prevent the lamps of slotting all the way in place.

DISMANTLING

1) First, let the projector and the lamp cool down and unplug

the mains lead. In order to gain access to the inside of the

projector, the following lenses and parts must be taken

out. Open lamp house door at the side. You will see the

optics and back mirror: (A) condenser lens (B) heat filter

plate. Remove these in the order from E to A. Pay special

attention to how the mirror plate (E) is taken out as this

can be difficult to slot back into place.

2) Remove the screws at the four corners of the bottom side

of the projector.

3) Remove the plastic attachment from the lamp changer switch. Make sure the lamp changer switch is

right across or you won’t be able to remove the cover.

4) Remove lens cover, door, fan vent and handle from the projector. Keep all these parts together.

SERVICING TASKS

1. Move to an area which can get dusty as the amount of

dust inside the projectors should not be underestimated.

2. Use the compressor to blow out the inside of the

projector especially the rotating wheel (fan). Don’t blow

away the grease from the cogs.

3. Use ‘3 in one’ lubrication oil on the fan bearing, at points

A and B and turn the fan to circulate the oil. It only needs

a few drops which could be applied by using the end of a

screwdriver.

4. Check the fan can move freely. If not, check for other

physical problems.

5. Grease the carousel component, and the cogs.

6. Clean all optical filters and lenses with a lint free tissue.

REASSEMBLY

7. Reassemble in the following order:

Position door and handle. Make sure that the handle is sitting comfortably – it can only go in one way.

Place the cover on the top and butt the screws in without tightening them.

Position fan vent, tighten back screws first and then front screws

Put lens cover back in place.

8. Replace the optics and lamps, IN ORDER, A, B, C, D, E. (E) with mirror facing front, (C) with lens

facing front, (B) with glass facing front, (E) with lens facing back.

9. The back mirror (E) is tricky to put back in its position.

10. The condenser lens (A) should go in the penultimate groove closest to the lens so that the last groove

remains empty. (this is only used for 40 x 40 mm square aperture slide mounts)

CENTERING THE LAMP

Having changed the lamps it is necessary to align them properly.

11. After switching off the projector, look through the lens and check the position of the lamp filament

12. In the shipment included (see accessories case) is a slide mount which contains a piece of card with

a pinhole pushed exactly in the centre. Place this slide inside the gate and switch on the projectors.

13. Using this mount, you can see whether the lamp is aligned properly. The two images of the lamp

should be vertically aligned and not overlapping. This can be controlled by the adjustment screw on

the lamp holder. (See picture with open lamp house door above)

14. In the end, make sure that the lever is pushed all the way back into place.

CHECKLIST

If any problems are encountered with the projectors during the following checks, refer to the operating

manual for troubleshooting.

1) Check Dial on bottom is set to 240v

2) Check fuse (below on /off switch) is 250v 1.6A

3) Run projector and listen for noises e. g. fan squeaking

4) Run test carousel and timer

5) Check legs are extendable

6) Remove lens

7) Turn over and open up, while doing so check that handle, grill, face plate and door are in place

8) Remove all optics, front to back, and lamps. Dust and clean

9) Clean and dust inside of projector – use compressor if necessary

10) Oil fan wheel

E D C B A wrong alignment correct alignment

11) Check fan is positioned correctly

12) Test slide change mechanism and oil where possible

13) Test run for one hour, with interval timer, before closing. Check for any problems

14) Replace all optics/lamps, back mirror first, working to front; replace used lamps with new ones.

15) Clean projector body, remove dust and residue

16) Close up and ensure all parts are reattached.

17) Clean and replace lenses

18) Align filament

19) Update equipment file

REPORT CREATED

by: Lee Cavaliere, Tina Weidner Date: February 2010

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