Operating instructions Pico 8, Pico 25, POWER MOS 60 
(Order No. 7171, 7172, 7176) 
 
Dear customer, 
Many thanks for deciding to purchase this speed controller. This is a very high-performance product 
incorporating the latest technology. Please read though the instructions very carefully before you use 
your new controller. Be sure to hand them on to the new user. This should ensure that you are able 
to exploit the unit’s full potential, and avoid errors in its use. 
 
Functions: 
•  High pulse frequency 
•  Soft-start 
•  Low-voltage cut-off 
•  Ultra small 
•  Extremely light 
•  Power-on protection when switched on 
 
Safety notes: 
•  No toy. Not suitable for children under 14 years. 
•  Read through the operating instructions carefully before you use the unit. 
•  Exclusively for use in battery-operated radio-controlled models. No other usage is permissible. 
•  Do not carry out any modifications of any kind to the speed controller. 
•  All electric motors connected to the speed controller must be of suitable rating and adequately 
suppressed. 
•  Never  operate  your  speed  controller  in  or  around  water.  Dirt,  water  or  other  foreign  matter 
must not be allowed to get into the unit. 
•  Do not exceed the stated number of cells in the battery. 
•  Motors fitted with propellers (boat or aircraft) are hazardous objects which  must be handled 
with great care to avoid injury and damage. Never stand in or close to the primary danger area 
of the motor when the drive battery is connected to it. Any electrical or mechanical defect may 
cause  the  motor  to  burst  into  life  unexpectedly,  and  parts  may  then  fly  about  which  could 
cause serious injury. 
•  Disconnect the battery while charging or whenever the speed controller is not to be used. 
•  Don’t switch on the speed controller until it is plugged into the receiver, and the transmitter has 
been switched on. 
•  Don’t touch the heat-sinks if they are hot, or are heating up. 
•  Avoid short-circuits and reversed polarity connections between the cables, this will ruin your 
speed controller immediately. 
•  Never run motor on external battery when hooked up on speed controller. 
•  Always carry out a range check on the ground before operating your model for the first time. 
•  Liability  exclusion: We  at  GRAUPNER  have  no  control  over  the  way  you  install,  use and 
maintain this product, nor can we check that you abide by the operating instructions. For this 
reason  GRAUPNER accepts  no liability  whatever  for  injury,  damage  to  property or  financial 
loss which result from the incorrect or improper use of this product, or are connected with it in 
any way. Because we have no control over the installation of this product, in no case shall our 
liability exceed the original cost of the product.