Expanding and pullback, P80/pp25 operator’s manual, Expanding – Ditch Witch P80 User Manual

Page 57: Pullback, Optional rod wiper

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Push Rods - 56

P80/PP25 Operator’s Manual

Operate

CMW

Expanding and Pullback

Expanding

A. Rod B. Bell Stop C. Expander D. Clevis

1.

When rod reaches target trench, attach bell stop,
expander, and another bell stop. Use clevis to attach
material to drill string.

2.

Pull expander back through bore. If bore will be
expanded further, add rod sections behind expander to
keep drill string in bore.

3.

When expander is in set-up trench, remove expander
and both expander stops.

4.

To expand bore further:

Remove expander and replace with larger expander.

Repeat procedure going reverse direction.

Pull progressively larger expanders followed by rods
until bore is correct diameter for material.

continue to use strike system when working in electric
jobsite.

Pullback

1.

Attach expander stop, expander and clevis to rod end.
Expander should be larger than pullback material.

2.

Attach rod pulling grips or threaded rod adapter to
clevis.

3.

Pull rod or cable through bore.

Optional Rod Wiper

Before pulling back or expanding, spearate rods in front of unit. Slide rod wiper on rod and reconnect.

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