GEARENCH U4174 PETOL HYDRA-TORK User Manual
Page 3
3
Petol U4174 Hydra-Tork Description
The U4174 Petol Hydra-Tork unit was designed for making up and breaking out downhole
tools. It is rated for operation on 3-1/4” to 8-1/4” diameters with a maximum working load
of 17,500 ft-lbs. The unit may be operated in any position (horizontal or inclined) and is
totally portable.
The Petol Drill Pipe Tongs are adjusted to the different diameters within their range by
adjusting the chain screw nut for fine adjustment and by adding or removing sections of
chain for the coarse adjustment.
The U4174 also offers the following features:
The tong cylinder and backup tong are mounted on independent tracks for adjusting and
switching from make up to break out.
Two adjustable vee-saddles mounted on the hydra-tork base for support. The vee-saddles
are also mounted on tracks for easy adjustment.
The unit can be operated with any commercially available hydraulic power unit capable
of delivering 3000-psi pressure.
Torque Rating
The following working load limits should always be observed. Exceeding these limits
could result in breaking the tong chain resulting in damage to equipment and possible
injury to personnel.
Diameter Max.
Torque
3” – 4-5/8”
16,900 ft-lbs
4-3/4” – 5-7/8”
17,100 ft-lbs
6” – 6-7/8”
17,300 ft-lbs
7” – 8-1/4”
17,500 ft-lbs