TM 9-4110-258-13
5.7
SERVICE MANIFOLD INSTALLATION. - Continued
(2) Remove two flare coupling caps.
(3) Check that all four service manifold valves are closed.
NOTE
Push switches in side doors will prevent refrigeration unit from operating if door is open. Do not
pass the service manifold hoses through the side doors if the refrigeration unit will need to be
operated.
(4) Pass service manifold hoses through front doors and connect service manifold pressure gauge hose to discharge
flare coupling and compound gauge hose to suction flare coupling.
(5) Connect service manifold charge hose to recovery unit.
(6) Turn discharge and suction shut off valves one turn clockwise to crack open valves.
(7) Open service manifold compound gauge valve and charge valve. Operate recovery unit and allow refrigerant to
purge for 3-5 seconds. Close compound gauge and charge valves then shut down recovery unit.
(8) Open service manifold compound gauge valve and charge valve. Operate recovery unit and allow refrigerant to
purge 35 seconds. Close compound gauge and charge valves then shutdown recovery unit.
b. Removal.
(1) Turn shut off valves fully counterclockwise to backseat them.
(2) Open service manifold pressure and compound gauge valves.
(3) Open service manifold charge valve. Operate recovery unit and allow refrigerant to purge from hoses.
(4) Close service manifold valves.
(5) Shut down recovery unit.
(6) Disconnect service manifold pressure gauge hose from discharge flare coupling and compound gauge hose from
suction flare coupling.
(7) Install two shut off valve and flare coupling caps.
NOTE
FOLLOW-ON MAINTENANCE:
Close front bottom doors.
Close both side doors.
5-10
