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Got a 330 cat excavator boom just nearly raises. Now pilot
got a 330 cat excavator boom just nearly raises. Now pilot pressure on slow side spool. Pilot pressure builds very slowly on high side spool. Good pilot pressure to joystick. Also travel is very limit… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
I have a Cat 345bl serial number 4SS00945. The main pump
I have a Cat 345bl serial number 4SS00945. The main pump failed I got a rebuild from cat installed primed like the manual said. Tried to operate machine all functions were slow, and now the boom won't… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
1981 Straight 750 dozer does not track straight at slow
1981 Straight 750 dozer does not track straight at slow speed … read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,406 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
1,304 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
11,406 satisfied customers
Link belt ls1600CII. The main problem in having is when the
Link belt ls1600CII. The main problem in having is when the boom is lifted, its slow and bogs the engine down unless you bottom out the arm function at the same time, then the boom shoots right up. Ev… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,406 satisfied customers
I have a cat 312 c excavator and the right side when
I have a cat 312 c excavator and the right side when sprockets are in the back the track has no power what's wrong… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 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
368 satisfied customers
I had to change an o ring on my hydrulic pump on a cat 315.
I had to change an o ring on my hydrulic pump on a cat 315. Now it seems as if i have air somewhere. The left track move very slow, it swings slow and the dipper hesitates a little. Other funtions see… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
I have a problem with throttle and console failure on my
Hi I have a problem with throttle and console failure on my 312 Cat which can be quite frustrating machine will always start but unless console lights up fails to power up… read more
Dan
Dan
Technician
Auto Mechanics 1&2/diesel mech
11,406 satisfied customers
I have a 2002 Cat 312b tracks move very slow in the forward
I have a 2002 Cat 312b tracks move very slow in the forward direction they do move a little bit faster if you dead head the bucket.… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
Cat 312 excavator. All systems work well and will travel with
Cat 312 excavator. All systems work well and will travel with both tracks driving. Will not operate on one track or rotate on the spot either direction… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
I have a cat 307ssr the machine has been very good and has
I have a cat 307ssr the machine has been very good and has under 3000hrs I am experiencing a slow boom operations one drive not moving and the machine will not spin. It seems like a valve or some comp… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
How do I check hydraulic fluid level on case 9010b, what position
How do I check hydraulic fluid level on case 9010b, what position should boom, stick and bucket be in? Also hydraulic oil getting to hot, just bought machine , do first I'm going to change filters and… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
Cat 322bl sn 8nr20091. Left track slower than the right, will
Cat 322bl sn 8nr20091. Left track slower than the right, will walk straight when activating another function eg swing, arm etc, I've been told one side of the main pump could be getting tired, hence t… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
have a cat e120 the high power mode does not work anymoreit
have a cat e120 b the high power mode does not work anymore it seems to be stuck in setting 1 was really slow. Also the automatic kick down for the motor wasn't working either?… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
I have a 1980 235 Cat excavator and recently the stick is very
I have a 1980 235 Cat excavator and recently the stick is very slow, also one track has lost power. I checked the pressure on the pumps, both pressure up to 3700 psi, pilot pressure is at 325 at the s… read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,304 satisfied customers
I am purchasing an used PC200-7 series excavator. I only have
I am purchasing an used PC200-7 series excavator. I only have seen photos of the machine. Vendor says, it is very muddy at present with maybe serious oil leaks (possibly hydraulic oil). The machine ha… read more
dieseldan55
dieseldan55
Mechanic
Vocational, Technical or Trade Scho
294 satisfied customers
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