Four Jaw Independent Chuck; Live Centre; Steady And Follow Rest; Bed Gap Removal - Promac Gh-1440K-T Betriebsanleitung

Use Molykote Paste G (or adequate
grease) to lubricate the jaws.

7.6 Four jaw independent chuck

This chuck has four independently
adjustable chuck jaws.
These permit the holding of square
and asymmetrical pieces and enable
the accurate concentric set-up of
cylindrical pieces.
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

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

Pull the taper pins (A, Fig 21) by
tightening the hex nuts.
Remove the screws (B).
Bed gap can now be removed.
Fig 21
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 screws.

8. Maintenance and inspection

General notes:
Maintenance, cleaning and repair
work may only be carried out after
the machine is protected against
accidental starting.
Turn off the main switch and press
the emergency stop button.
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 (5,7 litre)
DIN 51517-2 CL ISO VG 32
(e.g. BP Energol HLP32, Castrol Hyspin
AWS 32, Mobil DTE Oil Light )
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 by removing drain plug (A,
Fig 23).
Clan out any metal shavings.
Refill with oil.
Then change the oil in the headstock
annually (respectively every 700
operating hours).
Fig 22
9
Fig 23
- Gearbox:
Change the hydraulic oil (2,0 litre)
DIN 51517-2 CL ISO VG 68
(e.g. BP Energol HLP68, Castrol Hyspin
AWS 68, Mobil DTE Oil Heavy Medium)
Oil must be up to indicator mark in oil
sight glass (B, Fig 22).
Fill oil by removing plug (C，Fig 23).
Fig 24
Drain oilafter first month of
operation by removing drain plug (A,
Fig 24). Refill with oil.
Then change the oil in the gearbox
annually (respectively every 700
operating hours).
- Apron:
Change the hydraulic oil (1,1 litre)
DIN 51517-2 CL ISO VG 68
(e.g. BP Energol HLP68, Castrol Hyspin
AWS 68, Mobil DTE Oil Heavy Medium)
Oil must be up to indicator mark in oil
sight glass (A, Fig 25).