Comet Executive Gas Repair
7-27
Ironing Cylinder Hardened Ring
Replacement
The left end of the ironing cylinder trunnion is
equipped with a case-hardened wear ring (Figure
7-24, A). This ring is designed to prolong the life
of the ironing cylinder by protecting the trunnion.
The hardened ring rests on the two cam
follower bearings and rotates against them.
After years of use, the case hardening may wear
through, developing a groove in the ring. When
a groove is visible, the hardened ring must be
replaced.
NOTE: This procedure involves
removal of the cam follower
bearings. Carefully examine
their condition and determine if
replacement is appropriate.
Required Tools
Cold chisel
Drill
Drill bit: 1/4”
Hardwood block
Jack
Machine oil
Punch
Saw w/steel cutting blade
Scraper/coarse sandpaper
Sledgehammer/maul
Wooden block/wedges
Wrench: 1-1/16”
Perform only when the unit is OFF
with power disconnected and COOL.
CAUTION
Use extreme care when
removing the burner system.
Make sure the weight of the
burner is properly supported.
1. Remove the burner system; refer to Burn-
er Removal/Replacement on page 7-29.
WARNING
Use extreme care when
raising the ironing cylinder.
It is extremely heavy and
can cause serious personal
injury or damage to the unit
if dropped.
2. Take the weight of the cylinder o the cam
follower bearing by jacking up the ironing
cylinder 1/8”.
3. Install two wooden wedges between the
cam follower bearings to support the iron-
ing cylinder.
Figure 7-24: The hardened ring helps prevent wear
to the ironing cylinder trunnion.
A
C
B
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