9
B E N D I N g
B E N D I N g
B E N D I N g
The Model 1521 Hand Pump is designed for use ONLY with Hydraulic Knockout Sets and Cable Cutters.
WARNING
Hand pressure is sufficient to activate the pump. NEVER
attempt to apply additional pressure to the pump handle.
WARNING
SPeCiFiCaTionS — Model 1521 Hand PuMP
Model No.
1521 Hand pump
Overall Dimensions
2
7
⁄
8
" Wide x 3
7
⁄
8
" Tall x 12
3
⁄
4
" Long
Capacity
8,000 PSI max — .069 cu. in. of oil per stroke
Weight
4.5 lbs. (with oil)
Oil Capacity
16 cu. in.
MainTenanCe
Oil Requirements:
We recommend a high quality automatic transmission
fluid such as Shell DONAX Tg or equivalent
Filling the Pump with Oil
:
1. Secure the pump in a vise by clamping lightly onto the hex body with
the reservoir and end cap facing upward, and unscrew the end cap.
2. Remove the rubber plug located in the center of the reservoir follower,
and then remove the reservoir follower. Check the reservoir follower
O-ring and the rubber plug for damage or wear, and replace as needed.
3. Fill the reservoir until the oil level is
3
⁄
4
" from the top.
4. Push the reservoir follower into the reservoir until oil begins to come
out of the hole.
5. To remove trapped air from the pump, turn the release knob clockwise to
the closed position and pump the handle 5 times. Slowly turn the release
knob counterclockwise while keeping light pressure with your finger over
the hole in the reservoir follower. This allows air to escape under your
finger and prevents ejecting oil. Repeat this procedure if needed.
6. Replace the rubber plug in the reservoir follower.
7. Remove and clean the felt vent located inside the reservoir end cap.
Then screw the reservoir end cap back onto the reservoir.
oPeraTinG inSTruCTionS
1. Turn knob clockwise.
2. Pump handle to activate
hand pump.
3. When operation is complete,
turn knob counter-clockwise.
