(1)
Drain air tanks (TM 9-2320-365-10).
(2)
Loosen air hose 507 at PUMP CYL port.
(3)
Start engine and charge air tanks
(TM 9-2320-365-10).
(4)
Check for presence of air at PUMP CYL port.
(5)
If air is not present, go to step 8 of this
fault.
(6)
If air is present, replace air hose 507
(para 23-3).
(7)
Drain air tanks (TM 9-2320-365-10).
(8)
Tighten air hose 507 at PUMP CYL port.
Change 1
2-1968.3
TM 9-2320-365-20-2