FM25/FM25X Operator’s Manual Operation Overview - 29
Mixing Fluid
Mixing Fluid
1. Verify that hopper throat is not plugged before mixing.
2. Fill fluid tank with water. Allow room for additives.
3. Open circulation valve and tank discharge valve.
4. Start engine and run at half throttle or higher.
5. Turn pump on.
6. Open hopper valve that corresponds to that pump.
7. Open hopper lid and pour in bentonite. See page 41.
8. Close hopper valve and close hopper lid.
9. Mix well.
10. Open liquid additives pickup valve and insert pickup tube into a container of liquid additive to mix liquid
additives into fluid.
Silica dust. Exposure can cause lung disease. Use
breathing protection.
To help avoid injury: To help avoid injury:
• Use water spray or other means to control dust.
• Refer to U.S. Department of Labor Occupational Safety and Health Administration guidelines to
learn more about appropriate breathing protection and permissible exposure limits.
IMPORTANT: Do not open valve unless pump is running and mixing venturi valve is open. Fluid
could flow back into hopper.
IMPORTANT: Before adding bentonite to drilling fluid, be sure drilling unit is equipped to use a
bentonite mixture.
IMPORTANT: Insert pickup tube into a container of clean water and pull water through pickup
tube after each use.
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