Trane QFNA-IOM-1 - Manual (Page 23)

QFNA-IOM-1 23
Maintenance
Table 9 - Schedule Maintenance - Q Fan and Super Q II Fan (Continued)
Interval Task Procedure Notes
Monthly*
Inspect motor Check for excessive vibration and
temperature
Grease motor
(severe service*)
See lubrication instruction on motor
nameplate or on tag attached. If
motor has grease fitting and relief
plugs, remove and clean out any
hardened grease. Add fresh grease
at the fitting with a low pressure gun.
Run the motor a few minutes to expel
grease through the relief vent.
Replace all plugs, fittings.
*When very dirty and high
temperatures exist and for motor with
hp over 150
Check belt tension See General Maintenance procedure
Grease lubricated
bearings
Apply grease to the inlet and outlet
bearing grease zerks while the fan is
operating. Stop application when
grease is seen being purged through
the bearing seals. Once the purge
level is determined, use the
minimum amount of grease that is
possible to reach purge (purge =
point at which grease is visually seen
escaping from the bearing seals).
For most ambient temperatures (0 to
150° F), Use a high quality, all-purpose,
Lithium/Lithium complex based, #2 EP
grease (Mobilith AW-2, Texaco
Starplex 2, Shell Alvania #2, or
equivalent). For “extreme” ambient
conditions (less than 0° F and more
than 150° F), a synthetic or specialty
purpose grease may be considered.
For specific recommendations, contact
your closest Trane Sales/Service office.
General unit
inspection and
cleaning
Look for accumulated dirt, damage to
coils, fans, motors, piping, and wiring
and other obvious problems.
Clean as required
Every two-three
months
Grease motor
(severe/moderate
service*)
See lubrication instruction on motor
nameplate or on tag attached. If
motor has grease fitting and relief
plugs, remove and clean out any
hardened grease. Add fresh grease
at the fitting with a low pressure gun.
Run the motor a few minutes to expel
grease through the relief vent.
Replace all plugs, fittings.
*When very dirty and high
temperatures exist and for motor with
hp 10-150. Also for 12-24 hr service in
moderate dirt or moisture conditions.
Grease lubricated
bearings
Apply grease to the inlet and outlet
bearing grease zerks while the fan is
operating. Stop application when
grease is seen being purged through
the bearing seals. Once the purge
level is determined, use the
minimum amount of grease that is
possible to reach purge (purge =
point at which grease is visually seen
escaping from the bearing seals).
For most ambient temperatures (0 to
150° F), Use a high quality, all-purpose,
Lithium/Lithium complex based, #2 EP
grease (Mobilith AW-2, Texaco
Starplex 2, Shell Alvania #2, or
equivalent). For “extreme” ambient
conditions (less than 0° F and more
than 150° F), a synthetic or specialty
purpose grease may be considered.
For specific recommendations, contact
your closest Trane Sales/Service office.
Grease motor
(severe/moderate/
clean service*)
See lubrication instruction on motor
nameplate or on tag attached. If
motor has grease fitting and relief
plugs, remove and clean out any
hardened grease. Add fresh grease
at the fitting with a low pressure gun.
Run the motor a few minutes to expel
grease through the relief vent.
Replace all plugs, fittings.
In severe, very dirty, high temp
conditions, grease motors up to 7-1/2
hp; In moderately dirty, moist 12-24 hr
service conditions, grease motors
50-150 hp. In clean, dry 8-16 hr service
conditions grease motors over 150 hp.