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Have a 420 E backhoe by Cat. my extendable arm is not

working and I have a...
Have a 420 E backhoe by Cat. my extendable arm is not working and I have a waring light on the dash all hydraulic oil checked what could be the problem ?The machine runs fine otherwise.
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Answered in 1 minute by:
7/25/2017
Mechanic: Dan, Technician replied 5 years ago
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,658
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
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Hi my name is***** will be glad to help. What is your machine serial number?

Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,658
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
Verified
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Customer reply replied 5 years ago
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Mechanic: Dan, Technician replied 5 years ago
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Dan
Dan
Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 14,658
14,658 Satisfied Customers
Experience: 17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.

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