Revell SP510X Slot Car Motor

This is a 12-volt direct current motor. If properly installed, it will yield high performance and long life.

Under proper running conditions, it will operate with a moderate and normal heat rise. Excessive heating is a sign of danger which may be traced to excessive loading due to faulty installation, improper voltage, or damaged or inferior power packs which may permit some A.C. leakage.

Lubricate sparingly at the bearings only. DO NOT ALLOW oil to get on the brushes or commutator. We do not recommend the use of electronic or T.V. contact cleaning preparations on the commutator.

Do not disassemble your motor as the magnetic field will lose strength and require re-magnetizing.

Always check your installation for proper gear mesh, shaft and axle alignment, tight bearings, rubbing tires, or any other adjustment that prevents free turning of all power train parts.

To remove a pinion gear, never pry or pull against motor frame as the shaft may be bent. Always support pinion and drive shaft through with a small punch.

To re-install a pinion, support rear bearing on a hard surface and gently tap gear on shaft with a small hammer.

After you are sure that your racing motor is performing properly, here are some other things to check out in order to get peak performance from your model racing cars:

Make sure the rear axle spins freely in the flanged bearings. Check the frame alignment at bushing points. Carefully straighten the frame if it has been twisted or bent. Sliding the axle back and forth through both bearings will help seat the bearings at the proper angle. Apply light oil to axle bearings.
The motor shaft should be on a line that intersects the rear axle at dead center when viewed from the side. (See Figure 1)
The center line of the motor shaft should also intersect the axle at a 90° angle when viewed from the top. (See Figure 2)
Proper gear mesh is very important. Never bottom the teeth - gears set up too tightly always result in a poor running car. To correctly mesh your Revell gears, bottom the gear teeth and finger tighten both 540 axle nuts and wheels up against the nylon spacers. Then back off the wheel on the side of the axle closest to the hub side of the crown gear 1/2 turn. Now jam the 5.40 nut against the wheel to lock it in place. Back off the wheel on the other side of the axle one turn and lock in place with nut. (See Figure 3) Gear should now turn quite freely in a positive manner. Rapid gear wear will result if only the tips of the gear teeth meet. Maximum performance is obtained when the gears contact each other just enough to make positive transmission. Apply light grease to gears. After 1/2 hour of running, crown gear and motor pinion gear should be adjusted for tighter mesh. Gears must not bind.
Mount the body and check to make sure that both axles and all moving parts have enough running clearance. If nylon spacers touch the body on G.P. cars. enlarge the axle openings slightly or readjust the chassis length. Motor brushes and spring plunger assemblies should not contact either frame or body.
If your motor still seems to lack performance, try experimenting with different gear ratios. Keep in mind that the size of your tires will also affect the overall drive ratios. Finally, make sure your pickup is properly installed and is making constant electrical contact with the track. If car runs in reverse, switch motor lead wires to pick-up shoe.

Each of the following factors affects the performance of any model car racing motor:

Gear Alignment
Frame Alignment
Interference with Brush Spring Assembly
Gear Mesh and Gear Ratio
Electrical contact with Track
Flanged Bearings
Tire Size
Track Voltage
Interference with Moving Parts