New Zealand DSJ class locomotive

The New Zealand DSJ class is a class of diesel-electric shunting locomotive used on the New Zealand rail network. The class has a very similar overall design to the DSG class, but is instead single-engined, has a cab that is offset from the centre and is both shorter and lighter than its twin-engined counterpart.

New Zealand DSJ class
DSJ4004 in Picton, April 2012.
Type and origin Power type Diesel-Electric Builder Toshiba Heavy Industries, Japan (1) NZR Addington Workshops (4) Build date 1984–1985[1] Total produced 5
Specifications Configuration: ​  • UIC Bo'Bo' Gauge 1,067 mm (3 ft 6 in) Prime mover One: Cummins KTA-1150L Engine type 6-cyl diesel engine
Career Operators New Zealand Railways, Tranz Rail, Toll Rail, KiwiRail Numbers TMS: 4004–4060 Locale All of New Zealand Disposition Four in service, one written off

Introduction

DSJ4017 performing shunt duties at Ahuriri, 2003.

The first DSJ was assembled in Japan by Toshiba Heavy Industries in 1983 and arrived in New Zealand in 1984.^[1] Toshiba are the same company who built the EO class electric locomotives. The remaining four were assembled at the former Addington Workshops in Christchurch,^[2] and entered service from 1984 to 1985.^[1]

With only five members in this class, it represents one of the smallest contingents of shunt locomotives in current use.

In service

The locomotives have spent most of their time in use at the Te Rapa Marshalling Yard and Picton, and have ventured elsewhere on the network from time to time, including Ahuriri in Napier.^[2]

Accidents

On the afternoon of 1 September 2021, DSJ4004^[3] and a wagon went off the end of the rail ferry linkspan at Picton and into the harbour.^[4] The wagon and locomotive were retrieved from the harbour on 2 and 3 September 2021 respectively. No one was injured during the incident. Due to the cost of repairing the flooded locomotive, DSJ4004 was written off and became a parts donor for the remainder of the fleet.^[5]