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I have a Cat 446B Backhoe and am having an issue with the
Hi I have a Cat 446B Backhoe and am having an issue with the hydraulics. I can only get 1200psi on the bucket and on the hoe until I turn the steering. then the pump will go to 3000 psi. any ideas? … read more
catmastertech
catmastertech
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All functions except one stabilizer valve on backhoe control
All functions except one stabilizer valve on backhoe control bank on a John Deere 500a tractor/backhoe/loader lock up. The loader control valve works perfect. Changed hydraulic filters, but no improve… read more
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I have a 3116 cat engine in a 963b. It is shutting the oil
I have a 3116 cat engine in a 963b. It is shutting the oil pressure light off but not getting oil pressure to the pump to move the rack and start. The rack is adjusted and injectors timed. What could … read more
catmastertech
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I have a Caterpillar 320D excavator that died and will not
I have a Caterpillar 320D excavator that died and will not restart. Will not start on rather. … read more
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Dear Donny We are in Haiti on a work project with no access
Dear *****ny We are in Haiti on a work project with no access to help but we do have wifi. Need to get some digging done very soon. We have a Cat 420 E backhoe loader serial no. Cat0420eahLs06060 with… read more
catmastertech
catmastertech
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CAT 416 backhoe loader. Older model. Forward/reverse lever
CAT 416 backhoe loader. Older model. Forward/reverse lever on steering column just stopped working. The electric t'mission lockout buttons on shifter and loader bucket handle long ago deactivated. Mec… read more
catmastertech
catmastertech
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2,649 satisfied customers
I have a 420 D cat backhoe steers good without a load in the
I have a 420 D cat backhoe steers good without a load in the bucket . When you get a load on the bucket with main hyd. valve in neutral position steering quits. Move any hyd spool steers good . I thin… read more
Dan
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I have a 2003 cat backhoe loader model 420 dit. The front
I have a 2003 cat backhoe loader model 420 dit. The front auxiliary hydraulics are not functioning. The solenoid has been replaced and there is power to it.… read more
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I have a 432D backhoe and want to run a hydraulic motor off
I have a 432D backhoe and want to run a hydraulic motor off the front auxiliary circuit, my machine does not hat the continuous flow button shown in the manual, can I add this feature and what would b… read more
catmastertech
catmastertech
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I have a caterpillar 420 D it. I want to attach a 10' twin
I have a caterpillar 420 D it . I want to attach a 10' twin ram power angle plow from a truck. I have the attachment to it all set. I'm trying to figure out hydraulic hook up. Does the it front have i… read more
catmastertech
catmastertech
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I have a cat skidd steer 277b sn# MDH00744 trying to figure
Hi I have a cat skidd steer 277b sn# ***** trying to figure out how to drain the hydraulic oil so I can change it… read more
catmastertech
catmastertech
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I have a 1986 cat 428 when I increase the revs the backhoe
I have a 1986 cat 428 when I increase the revs the backhoe lift slows. If I engage the slew it will speed up again any advice would be greatfull. thanks bobby… read more
catmastertech
catmastertech
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The other day we took the Valve apart the one up front which controls the front bucket
Hi the other day we took the Valve apart the one up front which controls the front bucket on my backhoe. The reason we did was it didnt have any down presure for a few months but the other day as I wa… read more
catmastertech
catmastertech
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2,649 satisfied customers
I have a cat 428c series 8rn single tilt on the bucket.The
I have a cat 428c series 8rn single tilt on the bucket.The back hoe is functioning normal but front bucket will not lift or tilted.If you touch the liver on the dipper arm the bucket will lift and fun… read more
catmastertech
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I have a problem with a accumulator. I have to fill it with
I have a problem with a accumulator. I have to fill it with dry nitrogen but I need the charge procedure for this accumulator with part number(###) ###-#### I need help and is the first time that I'm … read more
catmastertech
catmastertech
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2,649 satisfied customers
newbie jumped in a 2012 bucket loader and within 10 minutes
newbie jumped in a 2012 420 bucket loader and within 10 minutes the bucket joystick is dead? rear outriggers didn't work either but now a few days later they work but the bucket is stuck extended up? … read more
catmastertech
catmastertech
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Cat 426 Serial is 7BC1XXXX. All hydraulic functions front and
Cat 426 Serial is 7BC1XXXX. All hydraulic functions front and back lack hydraulic power. I put a gauge on the test port on the hose right out of the pump head, im sure it wasnt the signal port. All th… read more
Dan
Dan
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7,530 satisfied customers
Dear Sir we have worrkshop in india and have 15 years experience
Dear Sir we have worrkshop in india and have 15 years experience in komatsu engines now we want to start work in cat excavators,dozers,graders engine so please tell us good scanner name (suitable for … read more
Steve
Steve
Mechanic
High School or GED
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