- 29 -
Power feed
The feed selection lever (see
Figure 38
) allows the machinist to engage or disengage the apron for longitudinal or
cross feeding tasks.
Sometimes it is necessary to rock the carriage handwheel or
the cross feed handwheel to assist in fully engaging the
chosen feed gears. to prevent inadvertent apron damage, the
apron is equipped with an internal lockout system that
prevents the feed selection lever and half-nut levers from
being engaged at the same time. However, before engaging
the apron for any longitudinal feed operations, make sure
that the carriage lock is loose and the carriage is allowed to
move freely, or the feed system may be damaged.
Moving the feed selection lever upwards from the central
or disengaged position engages the cross slide for
in-and-out facing operations.
Figure 38
Moving the feed selection lever downwards from the central disengaged position, engages the carriage for
left-or-right longitudinal turning operations.
The speed at which the carriage travels is set with the feed speed dials ,the feed direction is changed by the feed
direction lever on the headstock..
NOTICE!
A high feed rate or threading at a high speed reduces your reaction time to disengage the apron or
leadscrew to avoid a crash with the spinning chuck. When threading, making too deep of a cut can result in the half
nut binding with the leadscrew causing an impaired ability to disengage the half nut to avoid a chuck crash. pay close
attention to the feed rate you have chosen and keep your foot poised over the brake pedal. Failure to fully understand
this may cause the carriage to crash into the chuck.
Feed settings
Various feed rates are achieved on this lathe by moving knobs, levers, and rearranging change gears according to the
threading chart located on the headstock..
To set up for a power feed operation:
1. Disconnect lathe from power!
2. Open the change gear’s door on the left-hand side of the headstock to expose the change gears.
3. look at the lathe feed rate chart, and
find the required feed rate for your
turning or facing operation. See
Figure 39
, some numbers are carriage
feed, and some numbers are cross
feed. If for example, a carriage feed
rate of 0.083mm is needed, the
change gears and feed dials must be in
the following positions:
Figure 39
Page 31
Instructions Manual for AL-346V (L555D)
01/09/2017
Содержание AL-346V
Страница 2: ...METAL LATHE INSTRUCTION MANUAL 2015 11 V 1 Page 2 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 39: ... 37 Operation and Work results Page 39 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 46: ... 44 Page 46 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 49: ... 47 Page 49 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 51: ... 49 GEAR BOX Page 51 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 52: ... 50 Page 52 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 55: ... 53 APRON Page 55 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 58: ... 56 COMPOUND REST Page 58 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 60: ... 58 SADDLE Page 60 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 62: ... 60 TAILSTOCK Page 62 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 65: ... 63 CONTROL SWITCH ASSEMBLY Page 65 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 67: ... 65 BED AND DRIVE ASSEMBLY Page 67 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 69: ... 67 STAND COOLANT PUMP LAMP Page 69 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 70: ... 68 Page 70 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 72: ... 70 Page 72 Instructions Manual for AL 346V L555D 01 09 2017 ...
Страница 75: ... 73 STEADY REST Page 75 Instructions Manual for AL 346V L555D 01 09 2017 ...