Table 2-1. Operator Preventive Maintenance Checks and Services - Continued
Item to Check/
Not Fully Mission
Inspect pulleys for cracks, chips, or warpage.
Inspect for secure mounting to shaft If damaged or
chipped, warped, or loose
loose, notify unit maintenance to tighten or replace
it as necessary.
Fan Drive Shaft
Inspect fan drive shaft for cracks, chips, or
Fan drive shaft is cracked,
warpage. If damaged, notify unit maintenance to
chipped, or warped.
replace it as necessary.
The gages must not be inspected when the
DEFROST IN PROGRESS indicator is on.
Pressures given are the acceptable
Inspect the (high) pressure gage for reading
Gage reading above or
between 160 and 270 psi (1104 and 1863 kPa) and
below acceptable operating
the (low) compound gage for reading between 0 and
15 psi (0 and 104 kPa). If either gage is out of
acceptable operating range on a continuous basis,
note the readings and shut down the refrigeration
unit. Notify unit maintenance of the pressure
The thermometer must not be inspected when
the DEFROST IN PROGRESS indicator is on.
Thermometer should indicate within 15F (7C ) of
TEMPERATURE CONTROL setting. If out of this
more than 15F (7C)
range, shut down refrigeration unit and notify unit
above or below