User Manual

Sealer Sales Page 34

ST-1808-28 Tunnel Service Manual

MAINTENANCE

To aid in maintaining the high reliability of this shrink tunnel,

the following maintenance should be provided.

DISCONNECT ALL POWER BEFORE MAKING ANY REPAIRS.

IF UNSURE OF ANYTHING, CONTACT

A QUALIFIED SERVICE TECHNICIAN

A. The conveyor chains should be lubricated once a month with a

high temperature oil. The lubricant should be applied with a

brush or sprayed while the conveyor is slowly running.

B. The silicone covering on the tunnel rollers should be inspected

regularly to assure that no scrap pieces of film are wrapped

around the rollers to cause sticking of packages. To clean, run

conveyor until the affected rollers are within the heated

chamber, thus heating the film residue to soften the film, then

advance the conveyor to stop the rollers outside the heat

chamber for cleaning. Make sure the conveyor is stopped

before putting your hands or anything else in the conveyor

area. If necessary to remove the film residue, use a dull, blunt-

edged tool. Do not use any sharp instruments, as nicking the

silicone may result in having to replace the roller covering.

To replace silicone covering on the roller proceed as follows: