Propeller Owner’s Manual
175
Page 7-5
Rev. 1
Jun/11
ANTI-ICE AND DE-ICE SYSTEMS
61-00-75
B. Anti-ice System
The anti-ice system is controlled by the pilot via a cockpit
mounted rheostat. This rheostat operates a pump that
pumps anti-ice fluid from the tank at a controlled rate.
The anti-ice fluid is delivered through a filter, a check valve,
and then through tubing to a slinger ring located at the rear
of the spinner bulkhead. The anti-ice fluid is dispensed into
the rotating slinger ring, which holds the fluid in a curved
channel by centrifugal force. The fluid then flows out of the
slinger ring through feed tubes, which are welded to the
slinger ring, and then out onto the blade feed shoes.
The blade feed shoes are ridged rubber sheets that are
glued to the leading edge of the blades. The ridges in the
shoes direct the fluid out onto the blades and allow for an
even distribution of the anti-ice fluid across the blades.
3. De-ice
and Anti-ice
System Functional Tests
A.
De-ice System
(1)
Functional tests of the de-ice system should be
performed in accordance with
the following Hartzell
Manuals, which are also available on the Hartzell
Propeller web site at www.hartzellprop.com.
(a) Hartzell Manual No. 181 (30-60-81) - Propeller Ice
Protection Component Maintenance Manual
(b) Hartzell Manual No. 182 (61-12-82) - Propeller
Electrical De-ice Boot Removal and Installation
Manual
B
.
Anti-ice System
(
1
) Operational Checks
of the anti-ice system should be
performed in accordance with the following Hartzell
Manuals, which are also available on the Hartzell
Propeller web site at www.hartzellprop.com.
(a) Hartzell Manual No. 181 (30-60-81) - Propeller Ice
Protection Component Maintenance Manual
(b) Hartzell Manual No. 183 (61-12-83) - Propeller
Anti-icing Boot Removal and Installation Manual
OBSOLETE PROPELLER MODELS. SEE COVER PAGE
WARNINGS AND SERVICE BULLETIN HC-SB-61-331
