Electro-Magnetic Clutch; Maintenance - Shaft Seal Oil Collecting Tube Drain; Maintenance - Oil Color & Level Check - PREVOST H3-41 Maintenance Manual

SECTION 22: HEATING AND AIR CONDITIONING
FIGURE 30: SUCTION AND DISCHARGE HOSE
FIGURE 31: BITZER COMPRESSOR
4.1.2

Electro-Magnetic Clutch

For the Lang KK73.1 electro-magnetic clutch
removal & installation procedure, refer to
Maintenance Information MI18-37.
For Lang KK73.1 electro-magnetic clutch service
manual or bearing replacement procedure, refer
to the following manuals found on your
Technical Publications USB flash drive and on
the Prevost Technical Publications site.
• Lang clutch KK73.1 bearing replacement
Lang operating instr_KK73 1_2
•
• Lang Service manual_KK73.1_2
• Bitzer Maintenance Instruction kw-540-1
4.1.3 Maintenance - Shaft Seal Oil
Collecting Tube Drain
The shaft seal oil tube collects oil seeping
through the felt shaft seal. Remove the tube plug
and drain the oil into a container for disposal.
26 PA1621 Maintenance Manual All Series | Revised February 2019
Replace the cap on the tube and replace the
tube into the clip bracket.
Empty the shaft seal oil collecting tube at the
intervals specified by the Lubrication And
Servicing Schedule
LUBRICATION & SERVICING.
During the 250 hour run-in period of the shaft
seal, an increased oil seep rate may occur.
FIGURE 32: SHAFT SEAL OIL COLLECTING TUBE
4.1.4 Maintenance - Oil Color & Level Check
Check the oil color and the oil level, top up as
needed. Change the oil if it has darkened (see
oil evaluation criteria below).
A/C compressor oil color & level check
Check compressor oil color and level at the
intervals specified by the Lubrication And
Servicing Schedule
LUBRICATION & SERVICING.
1. Run the compressor for at least 15 minutes,
the time required so that the oil gets clear,
unclouded and stabilized (without bubbles).
2. Check the oil level during operation. The
proper level is:
R.H. sight glass: between ½ and ¾ of
•
sight glass height (Figure 33).
L.H. sight glass: the full sight glass height
•
(Figure 34).
in Section 24:
in Section 24: