G424 Service Manual Starting System40
6EN0871
6EN0872
6EN0873
Pull-in Test of Magnetic Switch
(1) Disconnect field coil wire from terminal M of magnetic
switch.
(2) Connect a 12V battery between terminal S and terminal M.
Caution: This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.
(3) If pinion moves out, then pull-in coil is good. If it doesn’t.
replace magnetic switch.
Hold-in Test of Magnetic Switch
(1) Disconnect field coil wire from terminal M of magnetic
switch.
(2) Connect a 12V battery between terminal S and body.
Caution: This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.
(3) Manually pull out the pinion as far as the pinion stopper
position.
(4) If pinion remains out, everything is in order. If pinion
moves in, hold-in circuit is open. Replace magnetic
switch.
Return Test of Magnetic Switch
(1) Disconnect field coil wire from terminal M of magnetic
switch.
(2) Connect a 12V battery between terminal S and body.
Caution: This test must be performed quickly (in less than 10
seconds) to prevent coil from burning.
(3) Pull pinion out and release. If pinion quickly returns to its
original position, everything is in order. If it doesn’t,
replace magnetic switch.
Caution: Be careful not to get your fingers caught when
pulling out the pinion.
Disconnect
connector
Disconnect
connector
Disconnect
connector
S
S
M
M
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