When a customer needs to replace an INTERNAL saddle way lubrication pump (Original Bijur P/N D2436) (or the electrical solenoid) (Original Namco P/N 16KK100B17) of the type that is located inside the gearing cavity at the 'front' or 'left' of the saddle, a conversion needs to be applied.
The original lubrication pump that mounted at that location and the solenoid that operated it are no longer available. Replacement pumps and solenoids for the original parts have been altered slightly in design by their manufacturers over the intervening years, such that the newer parts of the 'same number' will no longer physically fit in the gearing cavity and/or 'mate' with each other.
The modification consists of totally replacing the separate solenoid and pump units with a combination pump, solenoid and reservoir assembly and mounting it EXTERNALLY on the outside of the saddle near the 'right' or 'rear' end to protect it from chips, etc.
The primary conversion materials needed are:
1 907903 Pump & Reservoir Assembly
1 907570 10 Ft. X 5/32 Brass Tubing
4 907375 Compression Nuts
4 903390 Compression Bushings
1 D-1073 Blueprint
In addition, the customer will need to have a small amount of common, electrical flexible conduit and two fittings to re-route the wiring to the solenoid. A few common, small pipe fittings may be required, as well.
The process of installing this modification is as follows:
- Disconnect the electrical wiring and lubrication tubing from the existing way lube pump inside the saddle cavity. The pump may be removed (or not), however, it would be wise to save the fittings that connect the pump to the tubing.
- Pull the electrical wiring out of the saddle back to the junction box at the other end of the saddle.
- Examine the tubing on the saddle to determine if a tubing manifold block near the rear of the saddle is available for a new pump feed location. This would be the simplest method of connecting the new pumping unit, and would only require that the old, original pump feed tubing be capped off. If no manifold block has an un-used connection port, it will be necessary to couple the end of the new piece of tubing to the end of the old pump feed line and to run the new, extended tubing to the rear of the saddle to connect to the pump.
- The new pump and reservoir unit should be mounted on the rear end of the saddle, towards the side facing the column as shown on the drawing. While a special (and complicated) mounting bracket is shown on the blueprint, we have not included this in the parts listing above, since any simple bracket will be suitable, and can easily be fabricated on-site.
- After the pump is mounted and connected, it will need to be hand operated several times with the fitting loose to 'bleed' any trapped air out of the lines.
- Be certain to tell the machine oiler to fill the new reservoir with way oil, AND TO NO LONGER ADD 'MAKE-UP OIL TO THE SADDLE RESERVOIR. If he continues to add oil to the saddle reservoir it will overflow.
