MOTOR MOUNT ASSEMBLY

From July 2014 we have started to use axles of the cranked locos which accept a 6000z ball race bearing. This avoids using the Delrin axle boxes as a bearing. The new axle boxes are made from a mix of glass and nylon. The bearings are a loose fit in the axle box. This slack can be taken up using a single turn of insulation tape over the bearings before sliding on to the axle box.

For cranked locos you will need to drill the centre of the axle box out to allow the axle to pass through. Use a 12mm drill bit for this.

• We would recommend fitting the Oilite bearings using the Loctite 603 bearing fit. Ensure the metal of the mount is clean and degrease the out side of the bearing using a solvent. Remember to re oil once the motor mount has been slid on to the axle

• Axle boxes on cranked locos will need to be drilled out with an 11mm drill bit to allow them to slide on the axles

• Motors are a tight fit and may need the tabs bending back to help ease them in to the cradle. Use a rubber malletto locate them in - they will fit.
  

• Meshing motors. The gears want to be close but not absolutely tight. Both motors and wheel should turn freely. If you push the metal gear there should be a slight bit of play between forwards and backwards. If in douby use a piece of thin paper between the gears before tightening the motor bolts.

• Apply a thin oil to the gears.

• Rotate the gear and feel for tight spots. If the gear becomes hard to turn then slightly slacken off the motors.