Live Centre; Steady And Follow Rest; Bed Gap Removal; Maintenance And Inspection - Promac GHB-1330 Manuel Utilisateur

7.7 Live centre (optional)
The live centre is mounted in ball bearings.
Its use is highly recommended for speeds above 500 RPM.
To eject the live centre, fully retract the tailstock quill.
7.8 Steady and follow rest (standard for GHB-1340A)
The steady rest
serves as a support for longer shafts and ensures a safe and
chatter free operation.
The steady rest is mounted on the bed way with a locking
plate.
Tighten the fingers so that they are snug but not tight against
work piece.
Lubricate the fingers to prevent premature wear.
The follow rest
is mounted on the saddle and follows the movement of the
tool. It prevents flexing of long and thin work pieces under
pressure from the tool.
Set the fingers snug but not overly tight. Lubricate the fingers
to prevent premature wear.
7.9 Bed gap removal (GHB-1340A)
Pull the taper pins (B, Fig 21) by tightening the hex nuts (A).
Remove the 4 screws (C).
Bed gap can now be removed.
Before you install the bed gap, clean the contacting surfaces
thoroughly.
Remove nuts form the taper pins.
Slide taper pins into the holes and seat using a mallet.
Tighten the 4 screws.
Fig 21

8. Maintenance and inspection

General notes :
Maintenance, cleaning and repair work may only be
carried out after the machine is protected against
accidental starting.
Push the emergency stop button and disconnect from the
power source!
Clean the machine regularly.
Defective safety devices must be replaced immediately.
Repair and maintenance work on the electrical system may
only be carried out by a qualified electrician.

8.1 Annual Lubrication

- Headstock:
Change the hydraulic oil (2,3 litre)
HLP DIN 51524/ 2 ISO VG 46
(e.g. BP Energol HLP 46, Castrol Hyspin AWS 46,
Shell Tellus 46, Mobil DTE 25 )
Oil must be up to indicator mark in oil sight glass (A, Fig 22).
Fill oil by pulling plug located on top of the headstock
underneath the rubber mat.
Drain oil after first month of operation
plug (B, Fig 23).
Clan out any metal shavings.
Refill with oil.
Then change the oil in the headstock annually (respectively
every 700 operating hours).
- Feed Gearbox:
Change the hydraulic oil (1,5 litre)
HLP DIN 51524/ 2 ISO VG 68
(e.g. BP Energol HLP68, Castrol Hyspin AWS 68,
Shell Tellus 68, Mobil DTE Oil Heavy Medium)
by removing drain
A
D
Fig 22