(4) Apply 2 or 3 drops of lubricating oil (LO) to each oilcup
(fig. 23.1). On the PH-637C/PFP, the oilcups are located
on top of the motor.
(5) install the bottom cover, and secure it with the bottom
cover mounting screws removed in (3) above.
Figure 23.1. Blower motor, lubrication points (PH-637A/PFP,
47.2. Organizational Troubleshooting
Organizational troubleshooting of this equipment is based upon
the operational check contained in the daily preventive main-
tenance checks and services chart (par. 39). To troubleshoot the
equipment, perform all functions starting with sequence No. 4