Caterpillar Performance Handbook, January 2017, SEBD0351-47

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15-50 Edition 47
Performance Data
● 257D
Multi Terrain Loaders
BucketType Dirt: Bolt-on Edge
BucketWidth 1680 mm (66") 1830 mm (72")
Ground EngagingType Bolt-on Edge Bolt-on Edge
Bucket Assembly No. 279-5441 285-6090
Rated bucket capacity m3 0.37 0.41
yd3 0.48 0.54
Struck capacity m3 0.27 0.30
yd3 0.35 0.39
Width mm 1740 1893
in 68.5 74.5
Dump clearance at maximum lift/dump mm 2235 2234
in 88.0 88.0
Reach at maximum lift/dump mm 679 681
in 26.7 26.8
Floor angle at maximum lift/dump degrees –53.3 –53.4
Floor angle at maximum lift/rack back degrees 85.9 85.9
Clearance at maximum lift/level bucket mm 2857 2856
in 112.5 112.5
Hinge pin height at maximum lift mm 3065 3064
in 120.7 120.6
Maximum overall height mm 3928 3927
in 154.7 154.6
Reach at level lift arm/bucket mm 1387 1388
in 54.6 54.6
Maximum floor angle at minimum lift degrees 23.8 23.8
Dig depth with level bucket mm –17 –17
in –0.7 –0.7
Overall length with bucket on ground mm 3502 3502
in 137.9 137.9
Front clearance circle radius
(with bucket)
mm 2211 2242
in 87.0 88.3
Tipping load kg 2449.3 2433.4
lb 5400 5365
Breakout force — lift kg 2048.5 2034.6
lb 4516 4485
Breakout force — tilt kg 2182.4 2172.7
lb 4811 4790
Operating weight kg 3670.3 3686.4
lb 8092 8127