PNEUMATIC SYSTEM TEST.

TB 1-1730-229-30-3

______ d. Verify that the DC OUTPUT switch is set to OFF.

______ e. Connect DC cable to the DC load bank.

PNEUMATIC SYSTEM TEST. Perform pneumatic system test as follows:

CAUTION

Perform purge operation on pneumatic hose before connecting hose to

load bank.

NOTE

All steps that follow, all controls and indications are on the main AGPU

control panel unless otherwise stated.

______ a. Recheck connection of pneumatic hose at pneumatic load bank to assure that a hose release

will not occur when pressure is applied. Verify that the AIR FLOW CONTROL valve on the

pneumatic load bank is set to closed.

______ b. Check the mechanical zero on the AGPU PSIG PNEUMATIC gauge.

WARNING

Clear personnel from area around the pneumatic load bank. When

pneumatic pressure is initially applied, high volume, low pressure, hot air

(450 to 600F) and flailing hoses can cause injury.

CAUTION

If abnormal indications are observed in the following step, set the

PNEUMATIC POWER switch to OFF and discontinue test until problem

is corrected.

______ c.

Raise switch guard on PNEUMATIC POWER switch and set PNEUMATIC POWER switch to

ON. Observe that PSIG PNEUMATIC gauge rises to approximately 40 PSIG and that the

green PNEUMATIC POWER ON light illuminates.

Record: PSIG _______

EGT _______

Set surge valve to OPEN. PSIG gauge should be approximately 40 PSIG.

Record: PSIG _______

EGT _______