Clear view window wipers and full wiper systems

20NM SPECIFICATIONS

Unit Type	Voltage	Arc of Wipe	Liner Length
20NM	24	OVA	057

Standard Details
2 Speed • Self Parking • Insulated Earth Return • 12v and 24v

Angles of Arc
Variable - at stated angles

Pantograph Units
40º, 50º, 60º, 70º, 80º, 90º

Pendulum Units
40º, 50º, 60º, 70º, 80º, 90º

Spindle Centres
Between Drive Liner and Idler = 50mm

Drive Liner: M20
Brass Liner / 12mm SS Spindle

Liner Overall Length
Bulkhead Thickness + 65mm

Idler Liner
M20 - Brass Liner / 20mm SS Spindle

Bracket
No notation used for Bracket

Unit Weight
Allowing for the maximum arm and blade lengths: 8.0Kgs (17.5 lbs)

WIPER ARMS AND BLADES

Pantograph Arms

P613
Medium Duty.
Lengths:
12" - 24" (310mm to 610mm) max
Drive Head: 12mm
Idler Head: 10mm
Blade Clip: 14mm

Pendulum Arms

F6
Medium Duty.
Lengths:
12" to 28" (310mm to 710mm) max
Drive Head: 12mm
Blade Clip: 14mm

Blades

B140
Curved Blade .
Lengths:
12" to 24" (310mm to 610mm) max.

For use with Arm Types:
Pendulum F63
Pantograph P613

ELECTRICAL DETAILS

Wiring the Motor Unit to a Rotary Switch
Motor	Switch
31b (self park reversal feed)	position P
53 (low speed)	position L
53a (self park) and positive DC ship's supply	position B
53b (high speed)	position H
31 (earth connection)	the negative ship's supply
Washer Pump	position W

Wiring the Motor Unit to a Toggle Switch
Motor	Switch
31b (self park reversal feed)	position 8
53 (low speed)	position 4
53a (self park) and positive DC ship's supply	position 6
53b (high speed)	position 2
31 (earth connection)	the negative ship's supply

Wiring the Motor Unit to a Multi Speed Control Switch
Motor	Switch
31b (self park reversal feed)	to the BLUE wire
53 (low speed)	to the YELLOW wire
53a (self park) and positive DC ship's supply	both RED wires
53b (high speed)	to the WHITE wire
31 (earth connection) and the negative ship's supply	to the BLACK wire
Washer Pump	to the BROWN wire