Hawk Industries Hawkjaw Jr. Manual 65K-ALS Serial Numbers 4 to 9 - Manual (Page 11)

Hydraulic Requirements
Installation
1. Pressure compensated pump set to pressure compensate at 2600 psi.
2. Minimum volume of 20 gpm. 35 gpm for top performance.
3. 1" minimum Pressure line. 1 1/4" Pressure line if the power unit is located more than
100' apart from the HawkJaw. The hose working pressure must be 3000 psi or greater.
4. 1 1/4" minimum Tank line. 500 psi minimum hose working pressure.
5. Hawk approved pressure side non-collapsible type 3000 psi filter (Part # 061-H25). Initial
filter supplied with the HawkJaw. Connect the filter in line between the hydraulic power
unit and the HawkJaw.
6. Hawk approved quick disconnects (Part # 061-H26). Initial quick disconnects supplied with
the HawkJaw.
7. Hydraulic power unit located in a clean, dry, ventilated area.
8. Enough slack in the lines for the HawkJaw to move from its rest position to the drill pipe
connection to the mouse hole connection.
11 Installation
WARNING
The HawkJaw is a closed center system
which must have a pressure compensated
volume controlled power unit. If the only
available hydraulic power unit is constant
volume, then a Hawk supplied hydraulic
converter (Part # 061-J80) is required.
Running the HawkJaw with a constant
volume hydraulic power unit may result in
bodily injury and will cause damage to the
HawkJaw and to the hydraulic power unit.
WARNING
The HawkJaw must receive clean
hydraulic fluid. Running the
HawkJaw without a Hawk approved
pressure-side filter (Part # 061-H25)
voids the warranty and severely
shortens component life.