STYLE 63 CONVERSION KIT
The conversion kit is an ALSTOM Transport design and manufactured in South Africa. The mechanism replaces the BR type circuit controller, used on the style 63 points machine.

Operational details

	Mild steel carriage plate (electroplated)
	Limit switches (lock and blade detection)
	Snap action limit switch (motor cut-off and snubbing activation)
	All limit switches are high quality, with wipe action contacts completely enclosed within switches
	Nylon gear (matches nylon rack on drive slide)
	Shaft (complete with operating cams)
	Wire loom (standard four-wire detection and motor control)
	Alternate detection circuit looms available
	Terminal blocks (termination points for incoming power and detection cables)
	Stand-off hexagon support spacers to fit conversion kit to standard fixing points provided for BR type controller (electroplated)
	Lid label

Incorporated into the design of the conversion kit is provision for the use of the solid state AC or DC snubbing units for:

	Regenerative braking at end of stroke (DC machines)
	Electromagnetic braking (AC machines).

Ordering details

	STYLE 63 CONVERSION KIT
	Specify machine voltage (110 V DC or380V AC).

Advantages
Friction operated pendulum cut switch on motor eliminated
Greatly increased reliability together with corresponding reduction in maintenance requirements
Use of snap action cut-out switches eliminates costly and complex beryllium copper contact arrangements used on the BR circuit controller (eliminating problematic setting up and maintenance requirements associated with copper arrangements)
Mild steel carriage does away with expensive Bakelite carriage mouldings with brass bush inserts, whilst the robust mild steel carriage construction eliminates the Bakelite carriage's susceptibility to fracturing
End bearings made of Vesconite self-lubricating material; excessive wear, previously experienced with brass bushes due to spring pressure of the copper contacts, has been greatly reduced
Overall compact dimensions incorporating standard commercially available switches
Totally enclosed switches increasing reliability through protection against corrosion and the ingress of dirt and dust contamination
The wiring harness of the conversion kit is provided to incorporate the use of solid state snubbing as a standard (but other arrangements can be made on request)
One-year guarantee.

Note: the above snubbing units are not supplied with the kit, but are ordered separately.

Installation
The pendulum cut out switch is removed from the DC motor and the wiring is terminated on a terminal block located on the motor housing in the area of the pendulum switch.
A solid-state snubbing unit is fitted to the escapement crank top plate in the desired position.
The conversion kit, which uses a drive gear similar to the BR circuit controller, can now be fitted using the installation and set-up technique as applied to fitting the BR circuit controller.
Terminate incoming control wires onto terminal blocks, provided with the conversion kit.

STYLE C1H MKII
The style Cl H Mkll (electro-hydraulic) points machine was designed to provide positive locking of the blades along with the function of trailability. Designed and manufactured in South Africa it is jointly owned by ALSTOM Transport and Spoornet.

Operating sequence
The points operating sequence is:

	Closed blade unlocks
	Detection contacts break
	Points operate to opposite setting
	Closed blade locks
	Detection contacts make
	Drive slide is positively held in position in the case of hydraulic pressure failure

Trailable operation
During a run through situation, the flange of the first wheel attempts to force the open blade closed. The hydraulic fluid in the system resists this force. When the factory set pressure is exceeded, a hydraulic valve opens allowing the open blade to be forced closed, unlocking the closed blade, thus allowing the points to be trailed. Detection is broken providing an indication that the points were trailed. Operation of the points will reset detection.

Manual operation
Emergency manual operation of the machine is via a standard crank-handle. The handle couples directly to the motor shaft. Rotation in either a clockwise or anti-clockwise direction determines the direction of manual operation.

Major components
The major components of the style
Cl H points machine are the:
Electric motor
Hydraulic pump
Control valves
Operating cylinder
Rail mounted points lock
Detection limit switches
Drive slide, lock and detection
Housing and covers.

Applications
The style Cl H Mkll can be used to operate:
Single slip
Double slip
Derailer.
The rail mounted points locks can be used in conjunction with self-normalising points, hand tumbler and points indicators.

Style Cl H Mkll technical data

STYLE B1 SWITCHMATIC

Specification

The Switchmatic B1 points machine meets the general requirements of BS specification 581 and SATS no CSE 17A.

Applications

	Operates switches whether or not a drive to the heel is required
	Operates a moveable frog and derailer
	Operates switches that require a separate drive to a facing point lock and detector.

	AC 3-phase induction motor
	DC split-field series motor

AC motor operation
After the points lock is engaged, an electromagnetic brake is activated.
When a crank handle is inserted for manual points operation a switch prevents power reaching the motor.

DC motor operation
The drive slide reaches a position at which the points lock is engaged. The motor control switch then interrupts power to the motor and triggers the snubbing circuit to stop the motor.

Detection
The limit switches are fail-safe.

Mechanical characteristics
Maximum thrust at throw bar: 6,5 kN
Operating time at 330 kg load: 2,7 seconds
Operating time at 660 kg load: 3,4 seconds
Machine mass: 275 kg
Throw bar stroke: 140 mm.

Electrical characteristics
AC points machine
Nominal supply voltage:
380 V 3-phase AC motor power 550 W

DC points machine
Nominal supply voltage:ll0 V DC motor power-550W.

Note: Machines with other motor voltages can be supplied, available by arrangement.