CAUTION
CAUTION
CAUTION
CAUTION
CAUTION
WARNING
WARNING
WARNING
WARNING
4
NEVER attempt to punch a hole through more than a single
layer of material. Doing so may cause component failure and
possibly serious injury or death.
NEVER use this knockout set or any of its components except
for its intended purpose.
Hand pressure is sufficient to activate the pump. NEVER
attempt to apply additional pressure to the pump handle.
The Model 1521 Hand Pump is designed for use ONLY with
Hydraulic Knockout Sets and Cable Cutters.
ALWAYS inspect every component of the punch set-up
including the ram, pump, fittings, punch, die, draw stud,
adapter, and spacer(s) before each use. Replace any worn
or defective parts with Current Tools replacement parts.
NEVER use dull punches.
NEVER use any component that has worn or damaged threads.
ALWAYS check to ensure all components are properly
assembled before punching.
New punches are sharp. Be careful when handling them.
ALWAYS wear safety glasses when punching.
B E N D I N g
iMPorTanT SaFeTy inForMaTion
continued . . .
B E N D I N g
continued on next page . . .
SPeCiFiCaTionS
Model No.
152 and 152PM
154 and 154PM
Overall Dimensions
4
1
⁄
8
" x 10
1
⁄
2
" x 17
3
⁄
4
"
4
1
⁄
8
" x 14" x 17
3
⁄
4
"
Capacity
1
⁄
2
" to 2”
conduit size holes
1/2” thru 4”
conduit size holes
Weight
25 lbs.
54 lbs.
The model 1521 Hydraulic Hand Pump has a maximum operating pressure of 8,000 PSI .
NOTE: All models are designed to punch a maximum of 10 gauge mild steel (
.134 in . thick
)
Current Tools
™
Models 152PM and 154PM — Piece Makers
™
— are designed to
split the slug into two pieces for easy removal from the die after punch completion .
oPeraTinG inSTruCTionS
1. Match the punch, die, draw stud, adapter ( if needed ) , and spacer(s)
as required for the size hole to be punched. (
See Figures 1a, 1b, 1c
. )
2. After marking the hole location, drill a hole approximately
1
⁄
32
" to
1
⁄
16
"
larger than the draw stud or adapter being used.
NOTE:
Alternate Method —
Drill a
7
⁄
16
" hole to accept the
3
⁄
8
" adapter draw
stud (Part #1581) and use the
1
⁄
2
" punch and die to increase the hole size to
accept the
3
⁄
4
" draw stud (Part #1582). Then, if needed, use 1" punch and die
to increase the hole size to accept the 1
1
⁄
8
" adapter
.
