Systems and Equipment - 166
JT100/JT100 All Terrain Operator’s Manual
Downhole Tools
Backream Fluid Requirements
Backreaming is only successful when enough fluid reaches the bore. The amount of fluid needed depends
on size of bore and soil condition.
Follow these steps to find the
minimum
amount of fluid needed in perfect conditions.
IMPORTANT:
Use more fluid than recommended or the backream might be dry and unsuccessful.
Instructions
Example
1.
Find amount of fluid needed for your size of
backreamer. See the table on the next page.
U.S.
A 6” backreamer requires at least 1.47
gal/ft.
Metric
A 152-mm backreamer requires at least
18.24 L/min.
2.
Multiply this number by distance per minute
you plan to backream. The answer is an
estimate of amount of fluid you will need for
each minute of backreaming.
U.S.
1.5 gal x 2 ft/min = 3 gal for each minute of
backreaming.
Metric
18 L x .5 m/min = 9 L for each minute of
backreaming
IMPORTANT:
After you have determined how much fluid you will need, see your Ditch Witch
®
dealer for
nozzle recommendations.
Summary of Contents for JT100
Page 1: ...JT100 JT100 All Terrain Tier 4 Issue 2 1 Original Instruction Operator s Manual 053 2814...
Page 105: ...Prepare 104 JT100 JT100 All Terrain Operator s Manual...
Page 247: ...Service 246 JT100 JT100 All Terrain Operator s Manual As Needed...
Page 255: ...Service Record 254 JT100 JT100 All Terrain Operator s Manual Service Performed Date Hours...
Page 258: ......
Page 259: ......
