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Komatsu D39P-1 Shop Manual

Komatsu D39P-1
636 pages
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GENERAL BRAKES
4 - 3
DESCRIPTION
These machines are equipped with a disc and pad type brake system which can be applied manually or hydraulically.
The brake and decelerator pedal manually actuates the brakes and the secondary brake pedal control the hydraulic
system. This section covers the external portion of the pedal systems only with the hydraulic and internal portions
covered in Section 7E. Complete brake system adjustment is also covered in Section 7E.
SPECIFICATIONS
Brake Pad Tension Spring:
Free Length ................................................................ 3.243 in (82.610 mm)
Test Length ...................................................................... 2 in (50.8 mm)
Work Length ..................................................... 1.8 to 2.125 in (45.72 to 53.98 mm)
Test Load ......................................................... 21.5 to 24.5 lbf (95.3 to 108.7 N)
Number of Coils ............................................................................. 17
Brake Pad Return Spring:
Free Length ...................................................................... 5 in (127 mm)
Test Length ................................................................. 8.85 in (224.79 mm)
Work Length ...................................................8.85 to 9.89 in (224.79 to 251.21 mm)
Test Load ..................................................................... 26.1 lbf (116.1 N)
Number of Coils ............................................................................. 42
Brake and Decelerator Pedal Effort:
To Start ....................................................................... 3.34 lbf (14.85 N)
Finish (At Dash) ................................................................ 4.38 lbf (19.48 N)

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Komatsu D39P-1 Specifications

General IconGeneral
BrandKomatsu
ModelD39P-1
CategoryExcavators
LanguageEnglish

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