75. The standard conicity of wheel tyres was changed from 1 in 40 to 1 in 20 to conform to universal practice, and all wheels which were re-tyred or turned to gauge were altered accordingly. It has been found that side oscillation has been reduced by the increase in conicity.
76. Classification of locomotives was introduced in May, the 2-6-4 Tanks, the 4-6-4 Baltic Tanks and the 4-6-0 express passenger locomotives being designated A, B and C class respectively. Name plates with the appropriate number and classification letter were fixed to each engine.
77. Four "A" class engines and two "B" class engines were completely overhauled and four were painted.
78. Three sets of mechanical pump lubricators were made and fitted to "A" class engines. All engines of this class, with the exception of those employed on shunting operations, are now equipped with efficient mechanical lubrication.
79. Two "A" class engine boilers were reconditioned in England during the year, and one was reconditioned locally in the shops.
80. Considerable boiler repairs were carried out to "B" class engines. The boilers of these engines are showing signs of heavy wear and it will be necessary to recondition them in the near future.
81. Heavy repairs including painting were carried out to all "C" class express locomotives during the year. Experience has shown that these engines are somewhat on the light side for the duty they have to perform.
82. Trouble was experienced with the "Vibrac" steel connecting and side rods and big-end straps during the year, necessitating complete replacement with "C" class steel. The old rods developed fatigue cracks and a "Vibrac" steel big-end strap broke in transit, luckily without causing extensive damage.
83. Several wheel spokes of these engines cracked and had to be repaired and strengthened by welding.
84. Two sets of coupled wheels of these engines were re-tyred after running 180,000 miles.
85. Four carriages were rebuilt and painted, one of these being upholstered in rep.
86. Twelve carriages were overhauled and eleven were painted.
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75. The standard conicity of wheel tyres was changed from 1 in 40 to 1 in 20 to conform to universal practice, and all wheels which were re-tyred or turned to gauge were altered ac- cordingly. It has been found that side oscillation has been reduced by the increase in conicity.
76. Classification of locomotives was introduced in May, the 2-6-4 Tanks, the 4-6-4 Baltic Tanks and the 4-6-0 express passenger locomotives being designated A, B and C class respec- tively. Name plates with the appropriate number and classi- fication letter were fixed to each engine.
77. Four "A" class engines and two "B" class engines were completely overhauled and four were painted.
78. Three sets of mechanical pump lubricators were made and fitted to "A" class engines. All engines of this class, with the exception of those employed on shunting operations, are now equipped with efficient mechanical lubrication.
79. Two "A" class engine boilers were reconditioned in England during the year, and one was reconditioned locally in the shops.
80. Considerable boiler repairs were carried out to "B" class engines. The boilers of these engines are showing signs of heavy wear and it will be necessary to recondition them in the near future.
81. Heavy repairs including painting were carried out to all "C" class express locomotives during the year. Experience has shown that these engines are somewhat on the light side for the duty they have to perform.
82. Trouble was experienced with the "Vibrac" steel con- necting and side rods and big-end straps during the year, neces- sitating complete replacement with "C" class steel. The old rods developed fatigue cracks and a "Vibrac" steel big-end strap broke in transit, luckily without causing extensive damage.
83. Several wheel spokes of these engines cracked and had to be repaired and strengthened by welding.
84. Two sets of coupled wheels of these engines were re- tyred after running 180,000 miles.
85. Four carriages were rebuilt and painted, one of these being upholstered in rep.
86. Twelve carriages were
were overhauled and eleven were painted.
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