Hussmann Corporation • Bridgeton, Missouri 63044-2483 U.S.A.
Innovator Door Installation and Service Instruction
P/N 0425683_M
5
If the hinge pin sleeve bearing is damaged or worn,
the hinge pin will not move freely inside the door’s pin
sleeve. Push down on the hinge pin, if the pin “sticks”
and does not “return”, the sleeve bearing will need
to be replaced. The photos below are examples of a
deformed sleeve bearing; however, the root cause was
excessive wear on the torque rods spacer and sleeve
bearing. The damage to the torque rod components
was caused by external factors (prolonged high humid-
ity or cycling the frame’s anti sweat heaters). The best
solution is to replace the torque rod assembly and
hinge pin sleeve bearing, however, if the external factors
are not addressed, this will be become a recurring
problem.
Below is an example of a damaged sleeve bearing. The
compromised torque rod components caused the door
to “seat” below its designed parameter. Because the
door has essentially been lowered, it causes the sleeve
bearing to deform. In scenario above, we recommend
replacing the torque rod assembly; however, the hinge
pin sleeve bearing is a replaceable component.
Push down on
hinge and make
sure that the
spring returns it
to the extended
period.
If the pin
“sticks” at
its depressed
position, the
sleeve bearing
will need to be
replaced.
Damaged Sleeve Bearing
