OKJRailway Collection 

 OKJ 3
Silverdalen

Battery Locomotive from Silverdalens Pappersbruk
("Silver-valley Papermill"), Småland


The batterybox is a caracteristic feature of the Locomotives apperance.
Photo: © Olov Kalderén
The locomotive at Silverdalens Pappermill in May 2002.
Photo: © Olov Kalderén

The drivers compartment is very simple.
Photo: © Olov Kalderén		  

 
The narrow gauge railway in Silverdalen was completly indoors within the mill complex.
Photo: © Olov Kalderén


The only swich on the line was whelded shut some years ago because it was a cause of frequent derailments.
Photo: © Olov Kalderén
  


One of the three platformwaggons on the narrowgauge - they all had new wheelsets installed shortly before the closure.
Photo: © Olov Kalderén

TECHNICALDATA

Manufacurer:

   Aktiebolaget Gävle Vagnverkstad - AGV,
Gävle, Sweden

 Manufactureing number:

   428

  Manufactureing year:

   1970

   Type:

   Battery Locomotive AL-3

Locomotive weight, incl. battery:

   2 tons

Length over buffer beams:

   1745 mm

Width:

   950 mm

Height:

   1100-1310 mm

Track gauge:

   600 mm

Wheel base:

   692 mm

Wheel diameter:

   350 mm

One-hour traction motor power:

   3 kW

One-hour traction motor speed:

   1800 r/min

Traction motor voltage, nominal:

   70 V

Starting tractive effort:

   450 kp

One-hour tractive effort:

   200 kp

One-hour speed:

   4,7 km/h

Max speed:

   8 km/h

DESCRIPTION

The AGV AL-3 Handbook about the locomotive type:

Battery Locomotive AL-3 is constructed for lower traction effort needs at mines and tunneling works.
The locomotive is driven by an electrical traction motor. The torque is transmitted to the wheel axles of the locomotive by means of diving gears, mounted directly on the wheel axles.
Speed and traction effort control as well as reversing are effected by means of an electrical controller which connect and disconnect a starting resistor over contactors.
The locomotive is braked by means of a hand level brake actuating the primary shaft of the rear driving gear or, in the case the locomotive is equipped with remote control, by means of a magnetic brake actuating the same axle and controlled with a foot contact.
Locomotive frame and battery case are manufactured of steel sheet and are in welded construction.
Locomotive battery of alkaline (NIFE) as well as lead acid type (SAAJ-Lorica) is available for this type of locomotive.

HISTORY

The Locomotive was delivered to the MoDo, Silverdalen papermill in 1970. The Locomotive was used to transport rolls of paper between a papermaschine and a storagefacility inside the millcomplex.

The railway, which was compleatly indoors, had three waggons. One waggon in each side of the locomotive and one spare. Normally, the locomotive only pulled one waggon at a time.

In year 2002 the mill was closed down due to low profit - according to the new owners M-Real. The mill was producing a high-quality printingpaper called "Silverblade" besides beeing a "testbench" for new paperqualities for the previus owner.

The Lokomotive was aquired by OKJ in September 2002 

REMARKS

The Locomotive is named after its former owner by OKJ.  



This pageis created by Olov Kalderén
Last update of this page: January 26, 2006
Copyright: Olov Kalderén, 2003 - 2006.