Timer Test (Prop Deice) 2I19 - Piper PA-32R-301 SARATOGA SP Maintenance Manual

PROPELLER DEICING SYTEM (Cont.)
H. DEICER BLADES (Cont.)
(15) TIMER TEST (Prop Deice)
(b) When voltage and system ground have been verified for proper operation, secure power by
turning deicer switch off prior to performing a functional test on timer.
(c) Fabricate two 14 gauge jumper wires, and connect one from pin B of wiring harness to contact
B of timer, connect second jumper wire from pin A of wiring harness to contact A of timer.
With jumper wires in place, turn on power at deicer switch. Using a voltmeter, check for
voltage at timer contacts D and F. System voltage will be volts D.C. The timer will cycle
with 14 volts D.C. between pins D and F approximately every 90 seconds and verify zero
voltage on deenergized contact.
(d) If timer meets these requirements, it is not cause of trouble. If it failed to perform as indicated,
replace propeller deicer timer.
PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
– END –
2I20
30-60-00
Page 30-50
Reissued: July 1, 1993