Caterpillar Performance Handbook, January 2017, SEBD0351-47

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Edition 47 15-49
Performance Data
● 257D
BucketType General Purpose: Bolt-on Edge Multi-Purpose: Bolt-on Edge
BucketWidth 1680 mm (66") 1830 mm (72") 1680 mm (66") 1830 mm (72")
Ground EngagingType Bolt-on Edge Bolt-on Edge Bolt-on Edge Bolt-on Edge
Bucket Assembly No. 279-5369 279-5373 279-5391 279-5399
Rated bucket capacity m3 0.40 0.44 0.34 0.37
yd3 0.52 0.58 0.44 0.48
Struck capacity m3 0.29 0.31 0.25 0.26
yd3 0.38 0.41 0.33 0.34
Width mm 1740 1893 1749 1902
in 68.5 74.5 68.9 74.9
Dump clearance at maximum lift/dump mm 2190 2188 2174 2172
in 86.2 86.2 85.6 85.5
Reach at maximum lift/dump mm 711 712 722 723
in 28.0 28.0 28.4 28.5
Floor angle at maximum lift/dump degrees –53.4 –53.4 –53.7 –53.7
Floor angle at maximum lift/rack back degrees 85.9 85.8 85.6 85.5
Clearance at maximum lift/level bucket mm 2854 2853 2844 2843
in 112.3 112.3 112.0 111.9
Hinge pin height at maximum lift mm 3064 3063 3057 3056
in 120.6 120.6 120.4 120.3
Maximum overall height mm 3979 3978 3978 3977
in 156.7 156.6 156.6 156.6
Reach at level lift arm/bucket mm 1441 1442 1454 1455
in 56.7 56.8 57.2 57.3
Maximum floor angle at minimum lift degrees 23.8 23.8 23.8 23.8
Dig depth with level bucket mm –20 –21 –29 –30
in –0.8 –0.8 –1.2 –1.2
Overall length with bucket on ground mm 3555 3555 3561 3560
in 140.0 140.0 140.2 140.2
Front clearance circle radius
(with bucket)
mm 2257 2288 2260 2291
in 88.9 90.1 89.0 90.2
Tipping load kg 2365.9 2349.0 2211.5 2189.6
lb 5216 5179 4876 4827
Breakout force — lift kg 1994.8 1981.6 1885.8 1867.4
lb 4398 4369 4157 4117
Breakout force — tilt kg 2033.4 2024.3 1972.5 1962.9
lb 4483 4463 4348 4327
Operating weight kg 3693.0 3708.5 3826.4 3849.2
lb 8142 8176 8436 8486
Multi Terrain Loaders