Technical Articles

Technical Support Articles

ESCO Air Operated Hydraulic pumps
Wednesday, July 22nd, 2009 09:42 AM - By Andy Mathys
Posted in category Technical Articles

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Do you have an air hydraulic pump that is by-passing air? If so, here are a few things you can try to keep that problem to a minimum.

Monitor your operating air pressure. Most pump manufacturers recommend the operating air pressure be set at 80-120 psi.
Oil the air motor daily. A couple of drops of air tool oil in the air inlet of the pump will work just fine. This will not only lubricate the air motor piston but it will keep water off of the metal parts and minimize rust.
Drain your air compressor tanks daily. This will keep compressor sludge out of the air motor. Sludge build up can seize up the air motor piston.

What do you think?

Priming ESCO air hydraulic pumps
Wednesday, August 5th, 2009 10:03 AM - By Andy Mathys
Posted in category Technical Articles

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Have you experienced this scenario when operating your air hydraulic pump?

You push the Pedal to activate the pump and it appears to be running as it should but, the air/hydraulic pump does not build hydraulic pressure! What has happened? Well there is a good chance that your air/hydraulic pump has lost its prime. How do I prime my air hydraulic pump? Here are a few simple steps to prime your air/hydraulic pump:

· First, connect the air hydraulic pump to your air source and attach the pump to a piece of hydraulic equipment.

· Then, using the pump pedal, activate the release button of the pump, then at the same time activate the air button, underneath the front of the pedal, with your thumb.

· Do this for about 15 to 20 seconds. This will circulate Hydraulic fluid within the pump and work out any air pockets they may be located on the hydraulic side of the pump (causing the pump to lose its prime.)

· After about 20 seconds deactivate the release button and continue activation of the air button. Your air/hydraulic pump should start to build hydraulic pressure.

Note: If your air/hydraulic pump still does not build hydraulic pressure, please call 1-800-352-9852 and ask for a customer service rep or e mail customerservice@esco.net.

ESCO Bead Breakers
Wednesday, September 2nd, 2009 02:23 PM - By Andy Mathys
Posted in category Technical Articles

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Do you have a bead breaker that breaks the bead on single piece, two piece and 3 piece wheel assemblies? Does the tool push or pop off the wheel under hydraulic pressure? Are the replaceable teeth or the bead breaking foot bending or breaking under hydraulic pressure? This could be caused by the bead breaker running out of sequence. In other words the bead breaker foot will start to extend before you reach the maximum clamping pressure needed to properly clamp to the wheel. The problem can be taken care of by replacing the spring and ball in the sequence valve. Here are instructions for the installation of the ball and spring in the sequence valve.

1. Remove the sequence valve body, located at the base of the main body behind the bead breaker foot, with a ¾” wrench. Part #21599

2. Remove spring and ball and discard. Part #16724 (spring) #10375 (ball).

3. Clean out port area and ball seat area with parts cleaner and blow dry with air gun.

4. Inspect ball seat area for possible damage. If there is damage to the ball seat it can be repaired with a seat honing tool. If a honing tool is not available then the main body of the bead breaker will need to be replaced (very rare). Part #64250

5. Drop in a new steel ball. Then using a brass punch, seat the ball with a slight tap with a hammer.

6. Drop in new spring. Part# 16724

7. Replace copper washer, if necessary. Part# 10261

8. Tighten down valve body.

ESCO Air Hydraulic Pump Air Motor contamination
Wednesday, September 2nd, 2009 02:52 PM - By Andy Mathys
Posted in category Technical Articles

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One of the most common problems a tire technician can face every day when using his air operated hydraulic pump is outside contamination of the air motor. This contamination, more often than not, will come directly from the air compressor. The compressor will build up sludge in the air tank over time, and if it is not drained on a daily basis this sludge will end up in the air motor of your air hydraulic pump. The sludge contamination will wear air motor seals prematurely and will directly affect the operating efficiency of the pump and will lead to an eventual failure.

What can be done to minimize this problem?

· Drain the air compressor daily.

· Install an in line “moisture block” or regulator lubricator filter in the air line from the air compressor.

· Change the filter in the air inlet of the pump periodically.

· Squirt a few drops of Marvel Mystery Oil into the air inlet side of the pump daily.

· Have the air motor serviced by a trained repair technician.

Service tips for ESCO 10 ton rams
Thursday, October 15th, 2009 11:12 AM - By Andy Mathys
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Service tips for ESCO 10301 to 10305 10 ton, 10,000 psi. Hydraulic Cylinders

Here are a few tips that will help prolong the life of your 10 ton, 10,000 psi.,Hydraulic cylinder:

· Use coupler dust covers when not in use. This will help minimize internal contamination. Dip couplers and diesel fuel or kerosene and wipe off with a clean towel daily.

· Make sure that the recommended hydraulic fluid in your air hydraulic pump is clean. Check the fluid periodically and change the fluid as needed. This will help the seals in the cylinder assembly last longer. This will also prevent contamination build up in your hydraulic lines. Any AW32 hydraulic oil is recommended. Transmission fluid is not recommended, it may damages seals.

· Push or lift from or against a flat surface. Hydraulic pressure that is applied and not centered against the lifting or pushing surface becomes unstable and is called a point load. This prevents a point load situation, which can cause damage to the cylinder assembly or potential injury to the tire technician.

· Do not exceed more than 80% of the maximum stroke available when extending the piston rod of the cylinder assembly. When the piston rod reaches maximum stroke, the brass rod bearing (located on the base of the piston rod) will bottom out on the stop ring(threaded at the top of the cylinder body). Constant hydraulic pressure against the stop ring can cause it to partially blow out. If the job requires that you exceed 80% of the maximum stroke, it is recommended that you use a ram with a stroke that is the next size up. ESCO has a full line of 10 ton rams ranging from 2”, 4”, 6”, 8” and 10” strokes.

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Monday, May 9th, 2011 07:59 AM - By Andy Mathys
Posted in category Technical Articles

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