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My 320 CAT excavator is running hot. Hydraulic oil sample
My 320 CAT excavator is running hot. Hydraulic oil sample showed water in the oil. What should I do next? … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
I have a E70 does this have neg ground or neg positive,
I have a E70 does this have neg ground or neg positive … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have a303cr cat mini overheats when under a load I have
I have a303cr cat mini overheats when under a load I have done everything but a water pump when it gets hot I can leave run a few minutes later goes back down as soon as I travel or use hydraulics sta… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have an E70B Cat Excavator that seems to have the same
I have an E70B Cat Excavator that seems to have the same problem as this URL that I am reading. http://www.justanswer.com/heavy-equipment/29rzk-hydraulic-both-pumps-acts-main-relief-valve-guys.htmlWhe… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have a D5H Dozer that has a 3304 cat engine. I was to
I have a D5H Dozer that has a 3304 cat engine. I was to change the oil and it drained two quarts of water out first. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,409 satisfied customers
I have a 1998 Cat E70B excavator. When I turn the ignition
I have a 1998 Cat E70B excavator. When I turn the ignition key on, the water temp light comes on and the alarm sounds, regardless of the engine temp. Cold engine, hot engine, no difference, light and … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
How does the after cooler work and what is its functioning a
How does the after cooler work and what is its functioning a caterpillar excavator … read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
WPearl, Pearl, We are running a Cat 235C excavator that is
Pearl, We are running a Cat 235C excavator that is getting too hot. We have 2 of these machines in nice condition but one of them is getting hot and needs to be idled down every 20-30 minutes of heavy digging or it will overheat and blow out the coolant over flow. We have blown out the radiator, changed the rad cap and pressure tested the system. All seams fine. not sure where to go next. Also the hydraulic fluid temp is rising along with the engine temp. … read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
518 skidder trans cooler failed, replaced cooler, let drain
518 skidder trans cooler failed, replaced cooler, let drain overnight, drained filter housing, cleaned screen. How do I get rid of residual moisture?… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
Have a cat 312 7dko68#### runs hot after 20 mins, hydrulics
have a cat 312 7dko68#### ***** hot after 20 mins, hydrulics squeel on any type of load. have changed the hyd filter, water pump, thermostate, belts tight, blown out radiator, I was told there is a pr… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
I have a 120 cat excavator (1992). Over the last year or so
i have a 120 B cat excavator (1992). Over the last year or so my final drives have been displaying less and less power. First I lost fast travel, but slow was still strong, but that has continued to d… read more
Fieldtech59
Fieldtech59
270 satisfied customers
I have a 1997 312B caterpillar excavator. We are having problems
I have a 1997 312B caterpillar excavator. We are having problems with the cooling system. we have changed the rad, water pump, thermostat, rad cap and flush the cooling system with cat's rad flush and… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
pyrometer gets to hot, cleand out radiators and is still getting
pyrometer gets to hot, cleand out radiators and is still getting hot, charge air cooler has been checked for leakes and is good, what do you think could be the problem. Ken… read more
Dan
Dan
Auto Mechanics 1&2/diesel mech
I have an early 90s Cat E70B, built in japan. The right joystick
I have an early '90s Cat E70B, built in japan. The right joystick has developed a pretty good leak which is making a nice mess in the floor and console. When I took the console apart, I slid the top w… read more
Fieldtech59
Fieldtech59
270 satisfied customers
Cat TH63 Telehandlers. 1999 Problem losing water and transmission
Cat TH63 Telehandlers. 1999 Problem losing water and transmission oil coming out of its dipstick. Is is possible for radiator coolant/water to get into transmission oil. Any help appreciated. Tx… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
650 satisfied customers
I have a gray market cat 312b excavator. the hydraulic system
I have a gray market cat 312b excavator. the hydraulic system reaches HOT in 30 to 45 minutes of operation. I shut down or idle until it cools down and then go back to work. filters are new. oil is 40… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
Hi! There is a lot spill of grease from the swing motor
Hi! There is a lot spill of grease from the swing motor on our Volvo EC210LC Excavator (serial no. 04895). It's been running 10090 hours, but only 95 hours since last full service. I guess the seals a… read more
catmastertech
catmastertech
Technician
Vocational, Technical or Trade Scho
2,598 satisfied customers
I have a L185 new holland skid steer 2006 1500 hrs . Notice
I have a L185 new holland skid steer 2006 1500 hrs . Notice a little oil film in rad & cap . Keep close watch and started seeing more oil in rad. Was told to check oil cooler. Gasket look bad replace … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,409 satisfied customers
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Meet the Experts:

Curtis B.

Curtis B.

Technician

1,409 satisfied customers

Technican turned service manager with multiple lines of equipment and rental units.

Wayne

Wayne

Journeyman

650 satisfied customers

worked on many road graders, Bull dozers , skid steers, Rollers

Cat Man

Cat Man

Cat Engine Expert

517 satisfied customers

I am ASE Master Certified.

dieseldan55

dieseldan55

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273 satisfied customers

Road Mechanic for Volvo Construction Equipment.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

42 satisfied customers

16 years of experience

Steve

Steve

Mechanic

42 satisfied customers

Heavy Equipment Mechanic for 25 years

JBFixxer

JBFixxer

Mechanic

20 satisfied customers

16+ years experience, hydraulics,hydrostatics, engines, fuel injection systems. And everything in between.

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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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