REPLACING CYLINDERS —
SINGLE PANE GLASS
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
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
P/N 406928
6-5
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HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
Once cylinders are removed,
front glass will have NO support
to maintain it in a raised position.
Support the front glass at all times
until cylinder is replaced
or the glass is lowered.
WARNING
!
Cylinder rods must point down so
oil will lubricate the rod and seals. Failure to
lubricate will severely shorten cylinder life.
CAUTION
!
Glass is heavy and can cause
bodily damage. Check support
cylinders for periodic maintenance.
WARNING
!
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.
CAUTION
!
Removing a Cylinder
