hussman P/N 0420057_B P/N 0420057B, Replacing Cylinders Single Pane Glass, or close slowly

P/N 0420057_B

REPLACING CYLINDERS —

SINGLE PANE GLASS

!WARNING

Check each glass section monthly to determine if support cylinders are worn and need to be replaced. If the glass does not stay in a raised position, have the cylinders replaced.

Each front curved glass section weighs about 40 lb (18 kg). To prevent glass from falling during installation, use or maintenance and causing injury to customers or personnel, Hussmann recommends one person hold the glass in a raised position while the other person performs cylinder replacement. Support the front glass at all times until cylinder is replaced or the glass is low- ered.

6-5

1.Raise the front glass to open completely.

2.Use special hand tool, shown in photo, to compress and remove cylinder.

Note: Cylinders cannot be removed without special hand tool.

Cylinder

Removal

Tool

P/N 0425326

NOTICE

Cylinders are a wear item.

They are designed:

•to support the glass when fully open.

•to allow the glass to come down

(or close) slowly.

Have your Service Contractor replace the cylinders when required.

When cylinders need to be replaced, the lifting force of the cylinder must be known. The lifting force can be determined by the data printed on the cylinder being replaced. The following shows the part number for the 300N and 400N cylinders.

300N Cylinder – P/N 0412539

400N Cylinder – P/N 0406925

Removing a Cylinder

!CAUTION

Cylinder rods must point down so

oil will lubricate the rod and seals. Failure to lubricate will severely shorten cylinder life.

HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A. Service Merchandisers