System Setup - Enerpac PMB-1 Manual De Instrucciones

25 & -30 ton 50 & 100 ton
Figure 6, Chain and Lifting Hook.
WARNING: Make sure that the lifting chain is fully
and securely engaged with the lifting hook prior to
repositioning the press bed. On 50, 100, 150 and
200 ton models only, be certain that clinch pin is installed.
danger.eps
3. Remove retaining rings or O-rings from the back side
of the bed pins.
4. Close release valve
on bed lifting jack.
5. Pump bed lifting
jack until bed pin on
same side as chain
becomes loose.
6. Twist and pull to
remove bed pin.
7. Pump bed lifting jack
until the remaining
bed pin becomes
loose. See Figure 7.
8. Twist and pull
to remove the
remaining bed pin. See Figure 8.
9. Continue to pump bed lifting jack until lowest press
bed hole aligns with hole in press frame. The lowest
press bed hole will always be on the opposite side of
the press from the lifting chain. Insert bed pin. See
Figure 9. (If lowering the press, slowly open release
valve on lifting jack, lowering press bed until lowest
press bed hole aligns with hole in press frame. Close
release valve and insert bed pin.)
150 & 200 ton
Clinch Pin
Figure 7
Figure 8
10. Slowly open release
valve on bed lifting
jack, lowering press
bed until remaining
press bed pin holes
are aligned. Close
release valve on
bed lifting jack and
insert bed pin. See
Figure 10.
11. Install retaining
rings or O-rings on
back side of bed
pins.
12. Open release valve
on bed lifting jack.
13. Disconnect chain from lifting hook to prevent
inadvertent loading of the chain.
6.0 OPERATION
6.1 System Set-up
WARNING: Check all press set-ups and load
fixtures for safe operation.
Center the work piece and all parts of the set-up on
danger.eps
the line of force. If spacers are used in the set-up, they
should be constructed in one solid piece or tack welded
together for stability.
WARNING: Before operating the press, make
sure all bed support pins are fully inserted and
retaining rings are installed on ends of the bolster
pins before pressurizing the cylinder or loading the press.
danger.eps
6.2 Removing Air From The Hydraulic System
NOTE: Air removal will go faster if hose(s) are bled of air
before connecting them to cylinder port(s).
Advance and retract the cylinder several times, avoiding
pressure build-up. Air is fully removed from the system
when the cylinder advances and retracts smoothly.
5
Figure 9
Figure 10