Question about Caterpillar American Construction Equipment 1:87 Scale
I have 988B caterpillar wheel loader 50W06041 powered by 3408 engine. And I have a problem with the hydraulic system the problem is the bucket does not raise when the engine is on low idle until I push on the brake padle then it raises. But it raises normaly when the engine is on high idle. I have an other wheel loader the same kind of it and I disassmbled the accumulator charging valve of it and installed it on the loader that has the problem and it worked out perfectly. So I knew the problem with the accumulator chargeing valve. So I brought a new charging valve and installed it on the the loader but it did not work out it gave the same problem that the loader has. and I tryed other four valves second hand but they did not work as well and the loader has the same problem. So my equestion is there possible problem with the valves them selves?
This sound weird but the small pump on the back of your steering pump is the brake and pilot system supply. It is the possible source of your problem. Check for flow from the pump. At low idle there may be low flow.
Posted on Jul 30, 2009
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
May 25, 2018 | Heavy Machinery
Feb 01, 2018 | Miscellaneous
Nov 06, 2015 | John Deere Garden
Apr 14, 2013 | Cars & Trucks
Jul 14, 2010 | Dodge Dakota Cars & Trucks
May 18, 2010 | Toys
May 18, 2014 | Caterpillar American Construction...
380 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: