Tico Pro-Spotter, Service Manual

Page: 188 / 211

15-4 Service Manual
TICO Manufacturing
HEATING AND AIR CONDITIONING PRO-SPOTTER
R134a REFRIGERANT HOSES
AND TUBING
Inspection
IMPORTANT
Air conditioning system hoses contain special
barriers in the walls which prevent migration of
refrigerant gas.
Do not use hydraulic hoses as replacement hoses in
the air conditioning system.
Whenever a component is disconnected from the air
conditioning system, a thorough inspection of hoses and
tubing for moisture, grease, dirt, rust, or other foreign
material must be completed. If such contamination is
present in any hoses, tubing, or fittings and cannot be
removed by cleaning, then replace parts.
IMPORTANT
Chlorinated solvents (such as trichloroethylene) are
contaminants, and must not be used for cleaning.
Chlorinated solvents will cause hose deterioration.
Fittings that have grease or dirt on them should be wiped
clean with a cloth dampened with alcohol.
Apply a small amount of clean, correct viscosity
refrigerant oil on all hose and tube connections to help
prevent leaking at joints and connections. Dip O-rings in
correct viscosity refrigerant oil before assembling.
R134a REFRIGERANT OIL
INFORMATION
Removal

CAUTION
1. Handle refrigerant safely. (See “R134a
REFRIGERANT HOSES AND TUBING” on
page 15-4.)
2. Park and prepare tractor for service. (See “Park
Tractor Safely” on page 1-3.)

CAUTION
3. Remove and repair or replace air conditioner
compressor. (See “AIR CONDITIONER
COMPRESSOR” on page 15-10.)
4. If a new compressor is required, drain existing oil into
graduated container while rotating compressor shaft.
5. Record measured oil volume and discard oil properly.
6. If oil drained from a compressor that was removed
from operation is very black or amount of oil is less
than specification, perform the following:
a. Inspect for R134a leakage. (See “R134a
REFRIGERANT LEAK TEST” on page 15-5.)
b. Remove and discard receiver/dryer. (See
“RECEIVER/DRYER” on page 15-19.)
c. Determine if a complete system flush is required
and flush if necessary. (See “FLUSH AND
PURGE AIR CONDITIONING SYSTEM” on
page 15-9.)
d. If compressor is serviceable, pour flushing
solvent in manifold ports and internally wash out
any remaining old oil.
e. Install a new receiver/dryer. (See
“RECEIVER/DRYER” on page 15-19.)
Prevent refrigerant from contacting eyes or skin.
Refrigerant will freeze eyes or skin on contact.
Wear goggles, gloves, and protective clothing.
Avoid possible injury. New compressors are
charged with a mixture of nitrogen, R134a
refrigerant, and R134a refrigerant oil. Wear safety
goggles and discharge compressor slowly.
Specification
Compressor Oil—Volume 200 mL
6.8 fl oz