Greetings Muhammed, From the soon to be frozen Eastern Wildernwess @ 1140 feet above mean sea level.

Salaam, With regard to youre slippage problem you might as well change your tail pulley to a self cleaning/beater pulley to help keep sticky material of of the belt, they work really well.

Sincerely,

lzaharis

Arab proverbs:

Knowing what you don't know.

When the dog barks the caravan moves.

The safety triangle:

AWARE



ALERT ALIVE ■

Dear Mohammad

you can use lagged pulley , check and increase take up tension if it is lower than desgn requirement.

A R SINGH ■

Lag the pulley with rubber lagging such as Razer Arrowhead or Belle Banne Diamond Groove. These laggings are design to assist with water dispertion.

Cermaic lagging may also be an option.

I would also be looking to see what you can possibly do to eliminate the water problem first.

Shane ■

Dear Mohammed..

I assume your tail pulley is a drive pulley..so where is the take-up?

Anyway, in the old days we used very soft natural rubber called Linatex for such problem pulleys. It has chevron grooves to squeeze out the water and is ideal for wet stuff like Urea, and has an amazing wet coefficient of friction.

Regards

LSL Tekpro ■

Dear Mohammed:

As indicated by others, using rubber lagging with grooves is an effective way of channeling water away from the belt-pulley interface. As Mr. Singh has suggested, you should check/adjust your belt tension.

Is this pulley a drive pulley?

Is the slippage causing any damage?

Is the slippage causing the belt to mistrack?

I presume that the belt in question is one of the new ones that were installed on your project that replaced the gondula system. If so, is it one of the pipe conveyors or one of the troughed systems? ■

Mohammad

We still need to know the following:

What type of take-up do you have?

- Vertical gravity

- Screw take-up (manual)

- Hydraulic take-up

- Winch take-up

- Where is the take-up located within the system?

- Please discribe in more detail the type of slippage that you are experiencing.

- Are you getting a squeeling noise from the tail pulley?

- Are the bearings free to turn. Maybe one or both are seized.

- Is the slippage sideways causing mistracking and the belt to rub on the side frame increasing drag?

- Have you checked the amperage on the drive motor for increase in load?

The more information you can provide the more we can help.

Regards,

Gary Blenkhorn ■

Mohammed,

Based on your responses, applying a high quality diamond pattern grooved lagging, using the cold cure method, appears to be a reasonable approach. Although, it may not completely solve your problem, it should minimize it. There are two companies in the Dharain area that could perform this service for you (both using ex-AITR personnel). If you do not have their contact information, feel free to contact me via e-mail.

Regards, ■

Mohammed,

As a Post Script, if belt slippage is occuring due to water from condesation, you should confirm that the belt tension is correct - both too little and too much tension could be a contributing factor to your problem.

Regards, ■

Dear sir

you can increase pulley grip by any/ all of the following

1.0 increse angle of contact of belt by providing snub pulley/ in case same is already provided adjust pulley location to increase contact angle

2.0 Provide rubber lagging on pulley

3.0 Check and adjust take up tension

4.0 check free movement of pulley bearings may be siezed

A R SINGH ■