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We have a 1997 330 lc Hitachi excavator. There is a
we have a 1997 330 lc Hitachi excavator. There is a hydraulic leak in the under carriage, under the swing drive. What are we looking at here to fix it. … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
Komatu PC 40 7. My swing and room does not work the tracks
Komatu PC 40 7. My swing and room does not work the tracks in the blade works but I do not have any power with the rest of the machine can you tell me what to look for thank you very much my email is … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
I have a bobcat 341 excavator and I'm experiencing whining
Hi, I have a bobcat 341 excavator and I'm experiencing whining and screeching while engaging the swing motor. I've made sure everything is lubed up. Regardless of the direction of the swing I first he… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
We have a kubota KX41-v3, The is allway a left right play
We have a kubota KX41-v3, The is allway a left right play (side to side on an horizontal axe) about 2 inches on the swivel of the cab. The play is always the same wherever we rotate the cab.… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
I have a hitachi ex120-3 it stalls when you move pilot shut
I have a hitachi ex120-3 it stalls when you move pilot shut off lever from lock to unlock … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
I have a cat 325dl that was driving across a field and very
I have a cat 325dl that was driving across a field and very suddenly lost track speed on one side run by pump 1 or called the driven pump. If the ecm override is switched track speeds back up to norma… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,306 satisfied customers
Catmastech 321c SN mcf00334 when boom is held over to releaf
catmastech 321c SN mcf00334 when boom is held over to releaf stalls machine no codes power shit is good right pmp at idel is 434 psi… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,306 satisfied customers
Well i just bought another excavator and run it for two hrs
well i just bought another excavator and run it for two hrs and now it wont swing either direction its a 2005 321c … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
Have a terex hr 14 that wont rotate it will rotate some if
have a terex hr 14 that wont rotate it will rotate some if you use foot pedal to swing boom around one time i pull it aroung by hand but cant do that now … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
I have a 312 cat excavtor that doesnt want to turn, model
hi i have a 312 cat excavtor that doesnt want to turn … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
I was digging a hole with my backhoe when I busted a
Hello! I was digging a hole with my backhoe when I busted a hydraulic line. I detached my lines from PTO at the rear athachment point to relieve pressure, but I want to know if there is a way to relie… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,921 satisfied customers
Cat 330 dl machine chatters as you swing and boom up at the
cat 330 dl machine chatters as you swing and boom up at the same time. note the boom moves very slow . at single function the boom moves fast… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
Can right side of cab, including fuel tank and hydraulic oil
Can right side of cab, including fuel tank and hydraulic oil tank be removed for access to rotation motor, without removing complete cab. No pics in my service manual.… read more
Expert
Expert
Hi My name is XXXXX XXXXX am working on a Kobelco markIII sk 100.
Hi My name is XXXXX XXXXX am working on a Kobelco markIII sk 100. The problem happened when the barrel end for the dipper blew a line. Now when u swing left or right the dipper comes in under pressure… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,500 satisfied customers
my customer has a cat 312b sn 8jr012241 it will swing around
my customer has a cat 312b sn 8jr012241 it will swing around fast but when you swing slowly it locks down the swing every certain clock position. we removed the swing drive motor and all gears look in… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,306 satisfied customers
I have a komatsu pc300-6 and there is too much oil in the slew.
I have a komatsu pc300-6 and there is too much oil in the slew. It was fine when it started work this morning, and now t is overfull and overflowing a bit. I am guessing it has something to do with th… read more
Steve
Steve
Mechanic
High School or GED
42 satisfied customers
Out TB145 will start and run fine, but even with the lever
Out TB145 will start and run fine, but even with the lever lock down, none of the functions will work. I even bypassed the switch under the left lever arm by wiring the 2 wires together with a wiring … read more
Steve
Steve
Mechanic
High School or GED
42 satisfied customers
I have a Ford 555A backhoe and have suddenly lost any control
I have a Ford 555A backhoe and have suddenly lost any control over the left and right movement of the boom. All other hydraulics and cylinders are responding normally. Help… read more
Steve
Steve
Mechanic
High School or GED
42 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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