Four Jaw Independent; Steady And Follow; Maintenance And Inspection; Annual Lubrication - Promac GH-1440W Operating Instructions Manual

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
10
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 lifting off thread chart cover
(E) and removing plug (C).
Fig 24
Drain oil after 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).