Keio 6000 series

The Keio 6000 series (京王6000系, Keiō 6000-kei) was an electric multiple unit (EMU) train type in Japan, operated by Keio Corporation on its suburban Tokyo commuter rail network between 1972 and 2011. It was the first rolling stock in Keio's history with 20 m (65 ft 7 in) long cars with four pairs of doors per car side. Sets were refurbished from 1986 to extend their service life.

Keio 6000 series
Set 6416 in November 2009
In service	1972–2011
Entered service	23 May 1972
Number built	304 vehicles
Number in service	None
Number preserved	1 vehicle, 2 cab ends
Number scrapped	301 vehicles
Formation	2/3/4/5/6/8 cars per trainset
Operators	Keio Corporation
Lines served	KO Keiō Line KO Keiō New Line KO Keiō Dōbutsuen Line KO Keiō Sagamihara Line KO Keiō Takao Line KO Keiō Keibajō Line S Toei Shinjuku Line
Specifications
Car body construction	Steel
Car length	20 m (65 ft 7 in)
Maximum speed	110 km/h (68 mph)
Traction system	Resistor control Field chopper control
Acceleration	2.5 km/(h⋅s) (1.6 mph/s) (3.3 km/(h⋅s) (2.1 mph/s) for 6030 series on Shinjuku Line)
Deceleration	4.0 km/(h⋅s) (2.5 mph/s) 4.5 km/(h⋅s) (2.8 mph/s) (emergency)
Electric system(s)	1,500 V DC
Current collector(s)	Overhead
Multiple working	9000 series, 7000 series
Track gauge	1,372 mm (4 ft 6 in)

A four-car formation was used on the Keio Dobutsuen Line as a wanman driver-only-operated shuttle service.

Technical specifications

• Motor output: 150 kilowatts (200 hp)
• Formation: 2 cars (cleared for Toei Shinjuku Line), 3 cars, 4 cars, 5 cars, 6 cars, 8 cars
• Control system: field chopper (initial car was resistance control)
• Some have 5 doors, but some were rebuilt with 4 doors. 4-car trains (only used on Dōbutsuen Line) and 6-car trains had 5 pairs of doors on each side, and 5-car sets had rebuilt cars.

Operations

• Keiō Line (including Keiō New Line)
• Keiō Dōbutsuen Line
• Keiō Sagamihara Line
• Keiō Takao Line
• Keiō Keibajō Line
• Toei Shinjuku Line

Interior

Passenger accommodation consisted of longitudinal bench seating throughout.

• 
  Interior view
• 
  Priority Seats

History

The first units entered service on 23 May 1972.

The type was withdrawn from service on 13 March 2011.

DeWa 600 series

Three cars were converted to maintenance cars and reclassified as DeWa 600 series in October 2004. The DeWa 600 series replaced the older DeWa 5000 series maintenance cars which were operated since 1995. The remodeling went as follows:

• 6107 (set 6707) → 601 (the cab from car 6707 was transferred)
• 6407 (set 6708) → 621 (a simple cab was added)
• 6457 (set 6708) → 631

The cars received a new grey livery with red and white diagonal stripes.

The DeWa 600 series was used with ChiKi 290 or KuYa 900 sandwiched between cars 601 and 621. It also served as a shunting vehicle at Wakabadai depot.

Following the introduction of successor maintenance cars DeYa 901 and DeYa 902 in September 2015, the DeWa 600 series was withdrawn from service and scrapped in April 2016.

• 
  DeWa 600 series set 631 in June 2014