Pratt & Whitney Rzeszów S.A.
MAINTENANCE MANUAL
PZL-10W ENGINE
77-02-00
1992.08.28
Page 12
Export Control Classification: PL/UE 9E999
(2)
Signal lamp
(a)
Designation
ENG 1 OIL PRESS
or
ENG 1 OSL PRESS
(b)
Color
red
The signalling system switches on when the oil pressure in the engine pressure main decreases
below 0,1 9 MPa (2 kG/cm
2
; 28.4 psi).
F.
The signalling of the magnetic chip presence in the oil system.
(1)
Signalling device (pick-up)
(a)
Type
see Helicopter
Maintenance Manual
(b)
Quantity
1
(c)
Installation place
on the helicopter
(2)
Signal lamp
(a)
Designation
ENG 1 CHIP
or
ENG 2 CHIP
(b)
Color
yellow
The signalling system switches on when the magnetic metal chips occur in the engine oil system.
G.
The signalling of the fine oil filter choking.
(1)
Signalling device (pick-up)
(a)
Type
53940000022MCOA
(b)
Quantity
1
(c)
Installation place
on the engine
(see 72-02-00,
DESCRIPTION AND OPERATION,
Dwg 2, item 10)
(2)
Signal lamp
No
The signal system operates when the pressure drop on the fine oil filter reaches the value of 39 ÷ 59 kPa (0,4
÷0,6 kG/cm
2
; 5.7 ÷ 8.3 psi). The filter choked state is signalled by the protruding pointer of the
pick-up (indicator) situated on the fine filter.