TM 9-4120-395-14&P
5-5.
General Safety Instructions:
HIGH VOLTAGE is used in the operation of this equipment. DEATH ON
CONTACT or severe injury may result if personnel fail to observe safety
precautions. Do no operate unit without panels and screens in place and
tightly secured.
Death or serious injury may result if personnel fail to observe safety
precautions. Use great care to avoid contact with liquid refrigerant or
refrigerant gas being discharged under pressure. Sudden and irreversible
tissue damage can result from freezing. Wear thermal protective gloves and a
face protector of goggles in any situation where skin/eye contact is possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the
refrigerant to break down and form carbonyl chloride (phosgene), a highly
poisonous and corrosive gas.
NOTE
Operation of the recovery/recycling unit must be by AUTHORIZED PERSONNEL ONLY.
a.
Remove valve stem protective caps from high and low pressure service valve stem. See Figure 5-1. Take car
that they are not lost.
b.
Ensure service valves are closed, then remove caps from service ports.
c.
Remove blue and red hosed from service manifold hose rack.
d.
Connect and operate a recycling/recovery nit in accordance with manufacturer' instructions.
s
CAUTION
Do not permit the oil to escape from the unit. If oil is escaping, close the
valve(s) slightly.
Do not permit the refrigerant to escape fast enough to form ice or frost on
either the lines or the valve.
CAUTION
Do not open high pressure valve until low pressure discharge is near
completion to prevent possible oil loss.
5-6