MCC 68AC430-100, Руководство по эксплуатации и обслуживанию

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4--1
©
2012 Mobile Climate Control T-353 Rev. 01/2013
SECTION 4
SERVICE
WARNING
Be sure to observe warnings listed in the safety summary in the front of this manual before per ­
forming maintenance on the hvac system
WARNING
Read the entire procedure before beginning work. Park the coach on a level surface, with park ­
ing brake applied. Turn main electrical disconnect switch to the off position.
NOTE
To avoid damage to the earth's ozone layer, use a refrigerant recovery system whenever removing refrig ­
erant. When working with refrigerants you must comply with all local government environmental laws.
4.1 MAINTENANCE SCHEDULE
SYSTEM
SYSTEM
REFERENCE
SECTION
ON OFF
a. Daily Maintenance
X
X
Pre-trip Inspection - after starting
Check tension and condition of drive belts.
2.2
None
b. Weekly Inspection
X
X
X
X
Perform daily inspection
Check condenser, evaporator coils and air filters for cleanliness
Check refrigerant hoses, fittings and component connections for leaks
Feel filter-drier for excessive temperature drop across drier
See above
None
4.5
4.10
c. Monthly Inspection and Maintenance
X
X
X
X
X
Perform weekly inspection and maintenance
Clean evaporator drain pans and hoses
Check wire harnesses for chafing and loose terminals
Check fan motor bearings
Check compressor mounting bolts for tightness
See above
None
Replace/Tighten
None
None
4.2 REMOVING COVER
To remove the cover do the following:
1. Turn all the 1/4 turn cam locks counterclockwise.
2. Using two people carefully grasp the cover under
the bottom edge and lift up.
4.3 MANIFOLD GAUGE SET
A manifold gauge set can be used to determine
system operating pressures, add charge, equalize or
evacuate system.
When the suction pressure hand valve is front seated
(turned all the way in), the suction (low) pressure can
be read. When the discharge pressure hand valve is
front seated, discharge (high) pressure can be read.