TRANE
R
Maintenance
Periodic Maintenance
Checklist
The following checklist describes the
suggested maintenance schedule to
maintain proper operation of the unit.
Detailed procedures for owner-
operator maintenance checks are
given after this checklist.
After 48 Hours Operation
Belts have acquired their permanent
stretch. Readjust but do not overtighten.
Weekly
Observe unit weekly for any change
in running condition and any unusual
noise.
Every Month or weekly
Check air filters. Clean or replace if
clogged or dirty. Change bag filters
when pressure drop is 1-inch W.G.
Every Three to Six Months
Check greasing on fan and motor.
Align fan and motor sheaves (pulley).
Tighten sheaves setscrews to the
proper torque.
Check and adjust fan belt tension.
Tighten electrical connection.
lnspect coils for dirt build-up or coil
freeze up
Every Year
lnspect the unit casing for corrosion.
lf damage is found, clean and repaint
the surface with a rust-resistant primer
and vinyl chlorinated lacquer.
Clean the fan wheels and fan shaft.
Remove rust with emery cloth and
apply a coat of LPS#3 or an equivalent.
lnspect the condensate drain pan
and drain line, remove sludge or
foreign materials that might obstruct
proper drainage. Remove obstacles.
Check damper linkages, set-screws
and blade adjustment for proper
damper operation.
lnspect the control and power box
wiring for secure connections and
insulation.
Rotate the fan wheel and check for
obstruction in the fan housing. The
wheel should not rub on the fan
housing. Adjust the center if necessary
and tighten wheel setscrews to the
Disconnect electrical power prior to
access into fan or ductwork. Even
when locked out electrically, fans
may cause injury or damage if the
impeller is subject to "windmilling".
The impeller should be secured to
physically restrict rotational
movement can cause severe
personal injury or death.
proper torque.
Check condition of gasketing and
insulation around unit, door and
damper.
Examine flex connections for cracks
or leaks. Repair or replace damage
material.
WARNING
!
26
Disconnect electrical power and
allow rotating parts to stop before
servicing the unit. Exercise caution
if unit must be on for test or
maintenance procedures. Failure to
do so may result in injury or death
from electrical shock or moving
parts.
WARNING
!
IMPORTANT
!
Small & Medium size fans are
furnished shielded bearings. The
bearings are lubricated for life
and maintenance free. If re-
lubrication is necessary, on
larger fans it is recommended to
use a lithium base grease
suitable for all temperatures
within the operational limits.