Ditch Witch MR90 - Manual (Page 53)

Handle Fluid - 52
MR90 Operator’s Manual
Mix Fluid
CMW
®
Mix Fluid
Set Up
1. Position fluid unit and connect to drilling unit. See drilling unit operator’s manual.
2. Block trailer wheels.
Mixing Fluid
1. Verify that hopper throat is not plugged before mixing.
2. Fill MR90 tank with water. Allow room for additives.
3. Open circulation valve and tank discharge valve.
4. Start engine and run at full throttle.
5. Turn mix/supply pump on.
6. Open mixing hopper valve.
7. Open hopper lid and pour in bentonite. See page 61.
IMPORTANT: Leave unit hitched to towing vehicle or properly stabilized.
Jobsite hazards could cause death or serious injury. Use
correct equipment and work methods. Use and maintain proper safety
equipment.
To help avoid injury:
• Wear personal protective equipment including hard hat, safety eye wear, and hearing protection.
• Do not wear jewelry or loose clothing.
Improper handling or use of chemicals may result in illness, injury, or
equipment damage. Follow instructions on labels and in material safety data sheets
(MSDS).
IMPORTANT: Do not open valve unless pump is running and venturi jet 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.