Piper Arrow IV Turbo Maintenance Manual page 684

STARTING MOTOR SERVICE TEST SPECIFICATIONS.
Prestolite specifications for 12-volt starting motors installed as standard equipment on PA-28 series
airplanes are as follows:
CHART 8002. STARTING MOTOR SERVICE TEST SPECIFICATIONS
Aircraft Model
Motor Model
Min. Brush Tension
Max. Brush Tension
No-Load Test
Volt
Max. Amps
Min. R.P.M.
Stall Torque:
Amps
Min. Torque, Ft.-Lbs.
Approx. Volts
Pinion Position:*
Drive at Rest
Drive Extended
*This dimension is measured from the centerline of the mounting hole nearest the drive end head to the
edge of the pinion.
STARTING THROUGH EXTERNAL POWER RECEPTACLE WITH AIRPLANE'S BATTERY
NEARLY DEPLETED.
When using a 12-volt battery for external power starting and the airplane's battery is nearly depleted, the
following procedure should be used:
1. Disconnect the airplane's battery at the negative terminal to prevent excessive loading of the external
starting battery.
2. Check that all of the airplane's electrical equipment is turned OFF.
3. Connect the external battery to the external power receptacle; turn master switch ON and start engine
using normal starting procedure.
4. Turn master switch OFF; remove external battery, and then reconnect the battery at the negative
terminal.
5. Turn master switch ON.
PIPER AIRCRAFT
PA-28RT-201 / 201T
MAINTENANCE MANUAL
PA-28RT-201
MZ-4206
32 oz.
40 oz.
(77° F)
10
75
2000
560
38.0
4.0
1.748 in. to 1.855 in.
2.388 in. to 2.495 in.
—END—
3G21
PA-28RT-201T
MCL-6501
32 oz.
40 oz.
(75° F)
6
65
4900
410
8
2.0
80-10-15
Page 80-10
December 1, 1978