Check In-Season And Off-Season - Hitachi Zaxis 850LC-3 Operator's Manual

6 Check In-Season and Off-Season

--- twice a year
WARNING: Do not attempt to loosen connections in
air conditioning circuit when the air conditioner mal-
functions. Doing so may cause high pressure gas to
spout, resulting in serious injury. Consult your autho-
rized dealer immediately.
1. Preseason maintenance
Prior to the season, consult your authorized dealer for
maintenance of the air conditioner in order to operate it
in good condition during the season.
This maintenance includes replenishment of refrigerant,
inspection and replacing (if necessary) of inner and outer
air filters, line connections, pressure switches and inspec-
tion and cleaning of evaporator.
2. Off-season maintenance
(1) Operate the compressor once a week at low speed
for several minutes in order to maintain its parts in
well lubricated condition. Be sure to run the engine
at slow idle and place the temperature control switch
in MEDIUM COOL. This operation also revents refrig-
erant leakage caused by dried up shaft seal.
(2) Check for refrigerant leakage. If the refrigerant level
is low during off-season, rust will be formed inside
the circuit.
NOTE: Do not remove V-belt from the compressor during off-
season.
MAINTENANCE
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