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Thanks for the help. My Komatsu excavator PC75UU-1 has lost
Thanks for the help. My Komatsu excavator PC75UU-1 has lost the swing function and the dipper, ie, everything controlled by the left joy stick. Both functions were lost by degree. For 3 or 4 days, the… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a komatsu mini excavator and am having issues with no
I have a komatsu mini excavator and am having issues with no down pressure on the blade. If I lift the unit using the the bucket and the lower the blade it holds the unit in place after lifting the bu… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a U-55 mini excavator, at any rpm below 1325, the
I have a U-55 mini excavator, at any rpm below 1325, the machine will not travel , functions are slow! Trying to figure out the thee pump load sensing system … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
9700 hrs PC 200lc-8 started blowing blue smoke once warm
9700 hrs PC 200lc-8 started blowing blue smoke once warm hold over function into relied and pushed lots of blue smoke out crank case vent and exhaust … read more
E.Pounders3521
E.Pounders3521
owner
high school
8 satisfied customers
I have a pc 78 mr-6 excavator. The engine stalls and dies
I have a pc 78 mr-6 excavator. The engine stalls and dies when I operate any of the functions. It seems to get worse as the engine warms up. Sometimes when it starts stalling out I can jerk the track … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a 220-5 Komatsu excavator. Cannot find serial number
cannot find serial number as it's gone off the machine … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
My Komatsu PC excavator is 125 hours overdue for an oil
My Komatsu PC excavator is 125 hours overdue for an oil change and can't get a oil filter for a few days, is it okay to keep running it until I get new filter or should I put new oil in and change the… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
1,298 satisfied customers
Got a Komatsu 250 excavator, it is hard starting. Engine
Yes I am fixing myself, have not tried anything yet … read more
JimmyM827
JimmyM827
Bobcat specialist
Automotive technologies
70 satisfied customers
I spoke with you before about a komatsu with slow dipper and
Hi Dan I spoke with you before about a komatsu with slow dipper and you gave me good advice you asked for details of machine which I didn't have but I have now driver says dipper arm is slow to come i… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a 2011 komatsu PC 138-8 The machine does not have any
Hi Pearl, I have a 2011 komatsu PC 138-8 The machine does not have any digging power and swings slower then normal . It travels ok … read more
Jeremy
Jeremy
Diesel Diagnostic Technician / Expert
Bachelor's Degree
1,511 satisfied customers
My excavator Komatsu Komatsu PC 15R-8 will start but not
Please my excavator Komatsu Komatsu PC 15R-8 will start but not move a millimeter. I tested the switch in the saftey lever by shorting it out but no difference. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a 2012 zx40u-3 excavator, recently done a service on
Hi , i have a 2012 zx40u-3 excavator , recently done a service on it and changes out the in tank hydraulic filter , after about 10 to 15 hours of operating after the service the machine started to pla… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
On a 2004 JCB 214E, is there a way to bypass the hydraulic
On a 2004 JCB 214E, is there a way to bypass the hydraulic pump for a manual lift of the bucket or retraction of the excavator? This machine has the Hydro-static transmission. Is it possible to isolat… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I am looking to buy a 2000 komatsu pc 40 r 8 excavator looking
I am looking to buy a 2000 komatsu pc 40 r 8 excavator looking for any inherent problems tracks, hydraulic pumps, engine,parts avalibility ect. this machine has has 3900 hrs on it… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a komatsu 200-7 serial number A87533 and it has 8500
I have a komatsu 200-7 serial number A87533 and it has 8500 hours on it and over the last few years the hydraulics have been getting jerkier for the first half hour of operation? Once the hydraulic oi… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have a Volvo ec210lc excavator when I lift main boom it's
I have a Volvo ec210lc excavator when I lift main boom it's fine but when I go to slew as well the main boom slows right down… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
299 satisfied customers
Hi I have an old mid 90s Hitachi ex55ur excuvator and for
Hi I have an old mid 90's Hitachi ex55ur excuvator and for no apparent reason the actions that function when either of the control levers are pulled towards the driver do nothing, all other operations… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
15,140 satisfied customers
I have an old 22 tonne excavator (1988 Dresser, like Komatsu
I have an old 22 tonne excavator (1988 Dresser, like Komatsu PC150). It stopped working due to a hydraulic leak (it basically ran dry), which I fixed and then replaced the hydraulic oil. The "elbow jo… read more
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