User manual

English Motor modification set
5. Technical specifications
Set 1 / PM-1 Set 2 / PM-2 Set 3 / PM-3
diameter 24,5 mm 18 mm 18 mm
weight 141 g 52 g 55 g
for motor
type
large flat circle-
shaped
commutator motor
small flat circle-
shaped
commutator motor
drum-shaped
commutator
motor
for rotor* 217450 200680 231440
for engine
plate*
211990, 216730,
228500
204900 231350
* The item-numbers for rotors and engine plates refer to Märklin** products.
6. Converting the motor
Preliminary work
 Desolder the connection from the field coil to the engine plate
(directly on the engine plate).
 If present: desolder the noise suppression choke. Tip: You can solder
this choke into the input lead from the slider to the locomotive
decoder and thus improve the noise suppression.
 If present: desolder the noise suppression capacitors, discluding the
one at the motor (between the motor connections).
 Take out the brushes. When doing so lift the pressure springs
cautiously to the side!
 Release both screws at the engine plate and take out the engine
plate.
 Take out the rotator cautiously! Tip: Use this opportunity to
overhaul the motor.
 Take out the field coil. It will not be needed any more.
Note: Rotor and field coil are held to their position by the engine plate.
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tams elektronik