Technical data

SPIN TEST
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..
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trial continuity.
For checking armature, motor winding and brush
elec-
setup
Remove the drive housing from the sprayer as des-
page
30.
Remove the pressure control cover and screws, the
motor cover, the fan cover (Fl, and the inspection
covers
(Jl. See Fig 7.
Disconnect the two leads from the motor to the bridge
(5081. See Fig 8 and 9.
Armatu'ie Short Circuit Test
shorts, the motor will coast two.or three revolutions
Quickly turn
the motor fan by hand. If there are no
before coming to a complete stop.
armature is shorted and the motor must be replaced.
If the motor does not spin freeiy and resists rotation, the
See page 31.
Armature, Brushes, and Motor Wiring Open
Connect the
two black motor leads together with a test
Circuit Test (Continuity)
lead.
Turn the motor fan by hand at about two revolutions,
per second.
If there is uneven or no turning resistance, check the
following:
a) broken brush springs; b) broken brush
el broken motor leads; fl
loose motor lead terminals.
leads: c) loose brush terminal
screws; d) worn brushes;
Repair parts
as needed. See page 25.
If there is still uneven or no turning resistance, replace
the motor.
See page 31.
j cribed in "Drive Housing Replacement", Steps 1-6,
Fig 7
Fig 8