New Holland TD 60D Operator's Manual page 52

SECTION 2 - - CONTROLS, INSTRUMENTS AND OPERATION
REGULAR INSPECTIONS
At least once every three months :
-- remove any foreign matter from the condenser
and evaporator fins;
-- check the tension of the compressor belt;
-- run the engine at 1500 rpm speed and check the
dryer filter inspection glass: it should be
transparent and not contain any air bubbles or
white liquid;
-- check the condition of the tubing, connections
and mounting of brackets;
-- check that the discharge pipes are working
properly and remove any condensation from the
evaporator;
-- check that the pulley and compressor retaining
screws and nuts are correctly tightened.
MAINTENANCE
During long periods of inactivity, run the air
conditioning system for a few minutes every month
to circulate the oil in the system and keep the seals
in good condition.
Run the system only when the engine is warm and
the temperature inside the cab has reached 20_C.
ANNUAL MAINTENANCE
At the beginning of the working season, have the
following operations carried out by your authorised
dealer:
-- check the oil level in the compressor, fill--up if
necessary;
-- check the sealing on the system with a leakage
detector, fill--up with HFC 134a gas, or:
-- replace the dryer filter, only if absolutely
necessary;
-- a functional check of the overall system.
2--30
GENERAL CAB MAINTENANCE
(ALL MODELS)
After completing external cab maintenance, carry
out the following inspections :
1. Check from time to time that there is no leftover
water in areas covered with mats or padding.
2. Protect the hinges and locks on the doors and
opening windows
water--repellents.
3. Use suitable detergents or, if necessary,
sulphuric ether to clean the windows.
4. Remove the windscreen wiper blade and
sprinkle talc on the rubber.
5. Leave the doors or side windows partially open.
SPECIFICATIONS
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . .
-- Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor . . . . . . . . . . . . . . .
-- Capacity . . . . . . . . . . . . . . . . . . . . . . .
-- Oil type . . . . . . . . . . . . . .
-- Oil quantity
Cooling capacity at 22° C -- 49° C (75° F -- 120° F)
ambient temperature :............................3873 kcal/h
(Actual capacity dependent on system control
operator setting)
Airflow with electric fan on speed 3
with lubricants and
HFC134a
1.6 kg
SANDEN SD 7H15
155 cc/rev
SANDEN PAG SP--20
185 cc
3
. . . 8.3 m /min