Acra 1440GWI User manual

OPERATION MANUAL
PRECISION GEAR HEAD LATHE
MODEL:1440GWI

2
WARNING
Read and understand the entire contents of
this manual before attempting set-up or
operation of this lathe.
1. This machine is designed and intended for
use by properly trained and experienced
personnel only. If you are not familiar with
the proper safe use of lathes, do not use this
machine until proper training and knowledge
has been obtained.
2. Keep guards in place. Safety guards must
be kept in place and in working order.
3. Remove adjusting keys and wrenches.
Before turning on machine, check to see that
any adjusting wrenches are removed from the
tool.
4. Reduce the risk of unintentional starting.
Make sure switch is on the OFF operation
before plugging in the tool.
5. Do not force tools. Always use a tool at the
rate for which it was not designed.
6. Use the right tool. Do not force a tool or
attachment to do a job for which it was not
designed.
7. Maintain tools with care. Keep tools sharp
and clean for best and safest performance.
Follow instructions for lubrication and
changing accessories.
8. Always disconnect the tool from the power
source before adjusting or servicing.
9. Check for damaged parts. Check for
alignment of moving parts, breakage of parts,
mounting, and any other condition that may
affect the tools operation. A guard or any part
that is damaged should be repaired or
replaced.
10. Turn power off. Never leave a tool
unattended. Do not leave a tool until it
comes to a complete stop.
11. Keep work area clean. Cluttered areas and
benches invite accidents.
12. Do not use in a dangerous environment. Do
not use power tools in damp or wet locations,
or expose them to rain. Keep area well
lighted.
13. Keep children and visitors away. All
visitors should be kept a safe distance from
the work area.
14. Make the workshop child proof. Use
padlocks, master switches, and remove
starter keys.
15. Wear proper apparel. Loose clothing,
gloves, neckties, rings, bracelets, or other
jewelry may get caught in moving parts.
Non-slip footwear is recommended. Wear
protective hair covering to contain long hair.
Do not wear any type of glove.
16. Always use safety glasses. Every day glasses
only have impact resistant lenses; they are
not safety glasses.
17. Do not overreach. Keep proper footing and
balance at all times.
18. Do not place hands near the chuck while
the machine is operating.
19. Do not perform any set-up work while
machine is operating.
20. Read and understand all warnings posted
on the machine.
21. This manual is intended to familiarize you
with the technical aspects of this lathe. It is
not, nor was it intended to be, a training
manual.
22. Failure to company with all of these
warnings may result in serious injury.
23. Some dust created by power standing,
sawing, grinding, drilling and other
construction activities contains chemicals
known to cause cancer, birth defect or other
reproductive harm. Some examples of these
chemicals are:
 Lead from lead based paint
 Crystalline silica from bricks and cement and
other masonry products, and arsenic and
chromium from chemically-treated lumber.
24. Your risk from those exposures varies,
depending on how often you do this type of
work. To reduce your exposure to those
chemicals: work in a well ventilated area,
and work approved safety equipment, such as
those dust masks that are specifically
designed to filter out microscopic particles.

3
Specifications:
Series Number .................................................................................................................
Capacities:
Swing Over Bed ...........................................................................................................356mm(14〃)
Swing Over Cross Slide ..........................................................................................210mm（8-1/4〃）
Swing Through Gap ...................................................................................................506mm（20〃）
Length of Gap....................................................................................................….238mm（9-3/8〃）
Distance between Centers.....................................................................….................1000mm（40〃）
Headstock:
Hole through Spindle.............................................................................................φ40mm (1-1/2〃)
Spindle Nose............................................................................................................................... D1-4
Spindle Taper Nose.................................................................................................................... MT-5
Spindle Taper Adapter................................................................................................................ MT-3
Spindle Bearing Type .........................................................................................Taper Roller Bearing
Number of Spindle Speeds ............................................................................................................ 12
Range of Spindle Speeds............................................................................................ 40-1800 RAM
Gearbox:
Number of Longitudinal and Cross Feeds .......................................................................................40
Range of Longitudinal Feeds..........................................0.43-0.653mm/rev (0.0011‖-0.0271‖in/rev)
Range of Cross Feeds.......................................................0.015-0.220mm/rev(0.0003‖-0.01‖ in/rev)
Number of inch Threads …............................................................................................................. 28
Rang of inch Threads ............................................................................................................4-56T.P.I
Number of Metric Threads ............................................................................................................. 37
Rang of Metric Threads .................................................................................................. 0.45-7.0mm
Lead screw........................................................................... φ22mm x 1258mm (7/8〃x45-3/5〃)
Feed Rod Diameter ....................................................................................................φ19mm(3/4〃)
Compound and carriage:
Tool post Type.......................................................................................................................... 4-Way
Maximum Tool Size...................................................................................16mm x 16mm( 1〃x1〃)
Maximum Compound Slide Travel............................................................................90mm( 3-1/2〃)
Maximum Cross Slide Travel..........................................................................................152mm(6〃)
Maximum Carriage Travel ..........................................................................................946mm( 37〃)
Tailstock:
Tailstock Spindle Travel………...............................................................................120mm (4-5/4〃)
Diameter of Tailstock Spindle..............................................................................φ45mm (1-7/10〃)
Taper in Tailstock Spindle......................................................................................................... MT-3

4
Miscellaneous:
Steady Rest Capacity.................................................................φ6mm—φ95mm (1/4〃--3-3/4〃)
Follow Rest Capacity................................................................. φ6mm—φ69mm (1/4〃-2-3/4〃)
Length of Bed........................................................................................................1378mm(54-1/4〃)
Width of Bed....…..................................................................................................266mm (10-1/2〃)
Height of Bed..........................................................................................................324mm(12-3/4〃)
Overall Dimensions....................................................................1924mmL x 750mmW x 1200mmH
Main Motor....................................................................................................……….4HP, 3Ph, 380V
Net Weight (approx.)..................................................................................................960kg(2112ibs)
Shipping Weight (approx.)........................................................................................1090kg(2398ibs)
Table of Contents:
Warnings........................................................................................................................................ ....2
Specifications .................................................................................................................................3-4
Table of Contents................................................................................................................................4
Contents of the Shipping Container....................................................................................................5
Uncrating and Clean-Up.....................................................................................................................6
Chuck Preparation..............................................................................................................................7
Lubrication......................................................................................................................................8-9
Coolant Preparation .........................................................................................................................10
Electrical Connections .....................................................................................................................10
General Description.....................................................................................................................11-13
Controls.......................................................................................................................................13-15
Break-In Procedure….......................................................................................................................15
Operation.....................................................................................................................................16-19
Adjustments................................................................................................................................20-22
Removable Gap Section…...............................................................................................................22
Belt Replacement and Adjustment…………………………………...............................................23
Aligning Tailstock to Headstock................................................................................................... ..23

5
WARNING
Read and understand the entire contents of
this manual before attempting set-up or
operation!
Failure to comply may cause serious
injury!
Contents of the Shipping Container
1 Lathe
1 Steady Rest
1 Follow Rest
1 φ160mm(6 〃)Three Jaw Chuck w/ Top
Reversing Jaws (Direct Mount)
1 200mm（8〃）Four Jaw Chuck with Back plate
1 300mm(12〃)Face Plate (strapped to container
floor)
1 Backplate
1 Tool Box
Tool Box Contents:
1 6‖ Cross Point Screwdriver
1 6‖ Flat Blade Screwdriver
4 Open end wrench
(9-11, 10-12, 12-14, 17-19)
6 Hex Stock Wrench (2.5, 3, 4, 5, 6, 8)
2 Shear Pin
Metric Change Gear：
1 24T Change Gear
1 32T Change Gear
1 40T Change Gear
1 65T Change Gear
1 66T Change Gear
1 70T Change Gear
A：Inch Change Gear：
1 30T Change Gear
1 32T Change Gear
1 35T Change Gear
2 40T Change Gear
1 Oil Can
2 No.3 Mores Taper Dead Center
1 No.5 to No.3 Spindle Sleeve
6 Leveling Pads
1 Chuck Key
1 Key for Cam Locks
1 Tool Post Wrench
1 Owner’s Manual
1 Warranty Card
Flg.0 Metric
Fig.0-1 Inch

6
Uncrating and Clean-Up
1. Finish removing the wooden crate from around
the lathe.
2. Unbolt the lathe from the shipping crate
bottom.
3. Choose a location for the lathe that is dry, has
good lighting, and has enough room to service
the lathe on all four sides.
4. Do not lift by spindle. With adequate lifting
equipment, slowly raise the lathe off the
shipping crate bottom. Make sure lathe is
balanced before moving.
5. To avoid twisting the bed, the lathe’s location
must be absolutely flat and level. Check for a
level condition using a machinist’s precision
level on the bed ways both front to back and
side to side. The leveling pads included in the
tool box and the leveling screw in the lathe
base will help you to reach a level condition.
The lathe must be level to be accurate.
6. Clean all rust protected surfaces using a mild
commercial solvent, kerosene or diesel fuel.
Do not use paint thinner, gasoline, or lacquer
thinner. These will damage painted surfaces.
Cover all cleaned surfaces with a light film of
DTE®Oil Heavy Medium.
7. Open the end gear door. Clean all components
of the end gear assembly and cost all gears
with Mobilith®AW1.Cloes the door.

7
Chuck Preparation (Three Jaw)
WARNING
Read and understand all the directions for
chuck preparation!
Failure to comply may cause serious injury
and/or damage to the lathe!
Note: Before removing the chuck from the spindle,
place a way board across the bed ways under the
chuck.
1. Support the chuck while turning three cam
locks 1/4 turn counter-clockwise with the
chuck key enclosed in the tool box.
2. Carefully remove the chuck from the spindle
and place on an adequate work surface.
3. Inspect the cam lock studs. Make sure they
have not become cracked or broken during
transit. Clean all parts thoroughly with solvent.
Also clean the spindle and cam locks.
4. Cover all luck jaws and scroll inside the chuck
with Mobilith®AM2. Cover the spindle, cam
locks, and chuck body with a light film of
Mobil DTE®Oil Heavy Medium.
5. Lift the chuck up to the spindle nose and press
onto the spindle. Tighten in place by turning
the cam locks 1/4 turn clockwise. The index
mark (A, Fig.2) on the cam lock should
between the two indictor arrows (B, Fig.2). If
the index mark is not between the two arrows,
remove the chuck and adjust the cam lock
studs by either turning out one full turn (if
cams will not engage) or turning in one full
turn (if cams turn beyond indicator marks).
6. Install chuck and tighten in place.
Fig.2

8
Lubrication
CAUTION
Lathe must be serviced at all lubrication
points and all reservoirs filled to operating
level before the lathe is put into service!
Failure to comply may cause serious
damage to the lathe!
1. Headstock – Oil must be up to indicator
mark in oil sight glass (A, Fig.3). Top off with
Mobil DTE®Oil Heavy Medium. Fill by
pulling plug (D, Fig.3). To drain, remove drain
plug (A, Fig.4) with an 8mm hex wrench.
Drain oil completely and refill after the first
month of operation. Clean out any metal
shavings. Then, change oil in the headstock
annually.
2. Gearbox – Oil must be up to indicator mark
in oil sight glass (B, Fig.3). Top off with Mobil
DTE®Oil Heavy Medium. Fill by lifting off
thread chart cover (E, Fig.3) and remove plug
(C, Fig.3) with an 8mm hex wrench. To drain,
remove drain plug (A, Fig.5) with an 8mm hex
wrench. Drain oil completely and refill after
the first month of operation. Then, change oil
in the Gearbox annually.
Fig.3
Fig.4
Fig.5

9
Apron – Oil must be up to indicator mark in oil
sight glass (A, Fig.6). Top off with Mobil DTE®
Oil Heavy Medium. Remove oil cap (B, Fig.6) on
top of apron to fill. To drain, remove drain plug on
bottom of apron. Drain oil completely and refill
after the first month of operation. Then, change oil
in the apron annually.
3. Lead screw Feed Rod – Lubricate ball
oiler (A, Fig.7) on lead screw /feed rod bracket
with Mobil DTE®Oil Heavy Medium once
daily.
4. Tailstock – Lubricate two ball oilers (B,
Fig.7) on tailstock with Mobil DTE®Oil
Heavy Medium once daily.
5. Cross slide – Lubricate four ball oilers (A,
Fig.8) with Mobil DTE®Oil Heavy Medium
once daily.
6. Compound Rest – Lubricate four ball oilers
(B, Fig.8) with Mobil DTE®Oil Heavy
Medium once daily.
7. Carriage – Lubricate four ball oilers (D,
Fig.8) with Mobil DTE®Oil Heavy Medium
once daily.
Fig.6
Fig.7
Fig.8

10
Coolant Preparation
CAUTION
Follow coolant manufacturer’s recommendations
for use, care, and disposal.
1. Remove rear access cover on tailstock end. Make
sure coolant tank has not shifted during transport and is
located properly under the recovery chute (Fig.9).
2. Pour three gallons of coolant mix into drip pan.
3. After machine has been connected to power, turn
on coolant pump and check to see coolant is cycling
properly.
4. Fasten coolant door to stand.
Electrical connections
WARNING
All electrical connections must be completed by a
qualified electrician!
Failure to comply may cause serious injury and/or
damage to the machinery and property!
The Gear Head Lathe is rated at HP, Ph, V .
Confirm power available at the lathe’s location is the
same rating as the lathe.
Lathe Power Source Junction Box:
Remove the cover, run the main power through the
strain relief bushing and attach the ground, followed by
power lends. Replace the cover.
Main Power Switch: Located on the backside of the
machine. Turns the power to control machine on and
off.
Make sure the lathe is properly grounded.
Power is connected properly when pulling up on the
forward-reverse lever causes the spindle to rotate
counter-clockwise as viewed from the tailstock. If the
chunk rotates in the clockwise direction, disconnect the
lathe from the power source, switch two of three power
leads, and connect the lathe to the power source.
Fig.9

11
General Description
Lathe Bed
The lathe bed (A, Fig.10) is made of high-grade cast
iron. By combining high cheeks with strong cross
ribs, a bed with low vibration and high rigidity is
realized. Two precision ground veer sideways,
reinforced by heat hardening and grinding, are an
accurate guide for the carriage and headstock, The
main driver motor is mounted in the stand below
headstock.
Headstock
The headstock (B, Fig.10) is cast from high grade,
low vibration cast iron. IT is bolted to the bed by
four screws with two adjusting screws for alignment.
In the head, the spindle is mounted on two precision
taper roller bearings. The hollow spindle has Morse
Taper #5 with a 38mm (1-1/2”) bore.
Carriage
The carriage (A, Fig.11) is made from high quality
cast iron. The sliding parts are smooth ground. The
cross slide is mounted on the carriage and moves on
a dovetail slide and have adjustable gibs.
The compound slide (B, Fig.11), which is mounted
on the cross slide (C, Fig.11), can be rotated through
360°. The top slide and the cross slide travel in a
dovetail slide and have adjustable gibs. A four-way
toll post is fitted on the top of slide.
Four Way Tool Post
The four way tool post (D, Fig.11) is mounted on
the top slide and allows a maximum of four tools to
be mounted simultaneously.
Remember to use a minimum of two clamping
screws when install a cutting tool.
Apron
The apron (E, Fig.11) is mounted to the carriage. In
the apron a half nut is fitted. The half nut gibs can
be adjusted from the outside. The half nut is
engaged by use of a lever. Quick travel of the apron
is accomplished by means of a bed-mounted rack
and pinion, operated by a hand wheel on the front of
the apron.
Fig.10
Fig.11

12
Tailstock
The tailstock (A, Fig.12) slides on a V-way and can
be locked any location by a clamping lever. The
tailstock has a heavy-duty spindle with a Morse
Taper #3.
Leadscrew and Feed Rod
The leadscrew (B, Fig12) and feed rod (C, Fig.12)
are mounted on the front of the machine bed. They
are connected to the gearbox at the left for
automatic feed and ends.
Both are equipped with brass shear pins.
Gear Box
The gear box (D, Fig.12) is made from high quality
cast iron and is mounted to the left side of the
machine bed.
Steady Rest
The steady rest (E, Fig.12) serves as a support for
shafts on the free tailstock end. The steady rest
mounted on the bed way and secured from below
with a bolt, nut and locking plate. The siding fingers
require continuous lubrication at the contact points
with the work piece to prevent premature wear.
To set the steady rest:
1. Loosen three hex socket screws.
2. Loosen knurled screw and open sliding fingers
until the steady rest can be moved with its
fingers around the work piece. Secure the
steady rest in position.
3. Set the fingers snugly to the work piece and
secure by tightening three hex socket cap
screws. Fingers should be snug but not overly
tight. Lubricate sliding points with Mobil
DTE®Oil Heavy Medium.
4. After prolonged use, the fingers will show
wear. Refill or file the tips of the fingers.
Fig.12

13
Follow Rest
The traveling follow rest (F, Fig.12) is mounted on
the saddle and follows the movement of the turn tool.
Only two fingers are required as the place of the third
is taken by the turning tool. The follow rest is used
for turning operations on long, slender workpieces. It
prevents flexing of the workpiece from the pressure
of the cutting tool.
The sliding fingers are set similar to the steady rest,
free of play, but not binding. Always lubricate with
Mobil DTE® Oil Heavy Medium.
Controls
1. Control Panel – Located on front of gearbox.
A. Coolant on-off Switch (A, Fig13) – turns
coolant pump on and off.
B. Power Indicator light (B, Fig.13) – lit
whenever lathe has power.
C. Emergency Stop Switch (C, Fig.13) –
depress to stop all machine functions.
Caution: lathe will still have power.
Twist to re-set.
D. Jog switch (D, Fig.13) – depress and
release to advance spindle momentarily.
2. Headstock Gear Change Levers (E,
Fig.13) – located on front of the headstock.
Move levers according to speed chart for
desired setting.
3. Leadscrew/Feed Rod Directional lever
(F, Fig.13) – located on front of headstock.
Moving the lever up causes carriage travel
toward the tailstock. Moving the lever down
causes carriage travel toward the headstock.
When chuck is spinning in the forward or
counter-clockwise direction. Do not move lever
while machine is running.
4. Feed/Lead Selector Lever (G, Fig.13) –
located on the front of the headstock. Used
whenever setting up for threading or feeding.
Caution: in the ―A‖ position, never run the
lathe higher than 650 RAM.
Fig.12
Fig.13

14
5. Feed/Lead Selector Lever (H, fig.13) – located
on the front of the gearbox. Used in setting up for
feeding and threading. Positions ―F‖ and ―D‖ are for
the feed rod. Positions ―E‖ and ―C‖ are for the feed
screw. Position ―O‖ is neutral.
6. Lock Knob (I, Fig.13) – located on the front of
the gearbox. With the knob in the six o’clock
position, feed/lead selector knob (J, Fig.13) may be
adjusted. With the knob in the twelve o’clock
position, the feed/lead selector (J, Fig.13) is locked.
7. Feed/Lead Selector Knob (J, Fig.13) – located
on front of the gearbox. Used for setting up for
feeding and threading.
8. Compound Lock (A, Fig.14) – hex socket screw
located on left side of compound. Turn clockwise to
lock and counter-clockwise to unlock.
9. Carriage Lock (B, Fig.14) – hex handle located
on top of the carriage. Turn clockwise to lock. Turn
counter-clockwise to unlock.
Caution: carriage lock must be unlocked before
engaging automatic feeds or damage to lathe may
occur.
10. Longitudinal Traverse Hand Wheel- (D,
Fig.14) – located on the apron assembly. Rotate
hand wheel clockwise to move the apron assembly
toward the headstock.
11. Feed Selector (E, Fig.14) – located in the center
front of the apron assembly. Pushing lever to the left
and down activates the cross-feed function. Pulling
lever to the right and up activates the longitudinal
function.
12. Half Nut Engage Lever (thread cutting) (F,
Fig.14) – located on front of the apron. Move the
lever down to engage. Move the lever up to
disengage.
13. Cross Traverse Handwheel (G, Fig.14) –
located above the apron assembly. Rotate clockwise
or counter-clockwise to move or position.
14. Compound Rest Traverse Handwheel (H,
Fig.14) – located on the end of the compound side.
Rotate clockwise or counter-clockwise to move, or
position.
Fig.13
Fig.14

15
15. Tool Post Clamping Lever (J, Fig.14) –
located on top of the tool post. Rotate
counter-clockwise to loosen and clockwise to
tighten.
16. Tailstock Quill Clamping Lever (A,
Fig.15) – located on the tailstock. Lift up to lock the
spindle. Push down to unlock.
17. Tailstock Clamping Lever (B, Fig.15) –
located on the tailstock. Lift up lever to lock. Push
down lever to unlock.
18. Tailstock Quill Traverse Handwheel (C,
Fig.15) – located on the tailstock. Rotate clockwise
to advance the quill. Rotate counter-clockwise to
retract the quill.
19. Tailstock Off-Set Adjustment (D, Fig.15)
– two hex socket cap screws located on the tailstock
base are used to off-set the tailstock for cutting
tapers. Loosening one screw while tightening the
other off sets the tailstock.
20. Foot Brake (A, Fig.16) – located between
stand pedestals. Depress to stoop all lathe functions.
21. Micro Carriage Stop (B, Fig.16) – located
on the lathe bed. Loosen two hex socket cap screws
underneath body and slide along bed to desired
position. Tighten screws to hold in place.
22. Main Power Switch (not shown) – located
on the electrical box door on the rear of the lathe.
Turns main power to the lathe on and off.
Break-In Procedure
During manufacture and testing, this lathe has been
operated in the low R.P.M. range for three hours.
To allow time for the gears and bearings to break-in
and run smoothly, do not run the lathe above 650
R.P.M. for the first six hours of operation and use.
Fig.15
Fig.16

16
Operation
Feed and Thread selection
1. Reference the feed and tread found on the
gearbox faceplate tables (A, Fig.17 & Page 22
of manual).
2. Move levers (B, C, D, E & F, Fig,.17) to the
appropriate according to the chart.
Change Gears Replacement
The 25T, 127T, 50T gears installed in the end gear
compartment when delivered from the factory. This
combination will cover most inch feeds and threads
under normal circumstance.
The 30Tt, 32T, and two 40T gears found in the
toolbox are used with different combinations as
indicated on feed and thread tables (A, Fig.17).
1. Disconnect the machine from the power
source (unplug).
2. Open the door on the left end of the headstock.
3. Loosen nuts (A & B, Fig.18).
4. Move quadrant (C, Fig.18) out of the way and
hold in place temporarily by tightening nut (A
& B, Fig.18).
5. Remove hex socket cap screws (D and/or E,
Fig.18), depending on which gear is to be
changed.
6. Install new gear(s) and tighten in place with a
hex socket cap screw.
7. Loosen nut (B, Fig.18), move quadrant back so
teeth mesh on gears, and tighten nuts (A & B,
Fig.18).
Caution: Make sure there is a backlash of
0.05mm-0.08mm(0.002 〞-0.003 〞)between
gears. Setting the gears too tight will cause
excessive noise and wear.
8. Close the door and connect the machine to the
power source.
Fig.17
Fig.18

17
Automatic Feed Operation and Feed
Changes
1. Move the forward/reverse selector (A, Fig.19)
up or down depending on desired direction.
2. Set selector levers (A, B, C & D, fig.20) to
desired rate.
Note: for feeding, lever (D) will be set at ―F‖
or ―D‖, depending on desired feed rate.
Powered Carriage Travel
1. Push lever (B, Fig.19) to the left and down to
engage cross feed.
2. Pull lever to the right and up to engage
longitudinal feed.
Thread cutting
1. Set forward/reverse lever (A, Fig.19) up or
down depending on the desired direction.
2. Set selector levers (A, B, C and D, Fig.20) to
desired rate.
Note: for threading, lever (D) will be set at
―C‖ or ―E‖, depending on desired thread.
3. Push lever (B, Fig.19) to the right.
4. Engage the half nut lever (C, Fig.19).
5. To cut inch threads, reference the feed and
thread tables. The half nut lever and the
threading dial are used to thread in the
conventional manner. The thread dial chart
specifies at which point a thread can be entered
using the threading dial.
6. To cut metric threads, the half nuts must be left
continually engaged once the start point has
been selected and the half nut is initially
engaged (thread dial cannot be used).
Fig.19
Fig.20

18
Metric Lead and Feed Table (Metric Only)
Inch Thread Table (Metric Only)

19
Inch Thread Table ( Imperial Only)
Metric Thread Table ( Imperial Only)
Compound Rest
The compound rest is located on the top of the cross
slide and can be rotated 360 degrees. Loosen the
two socket head cap screws (A, Fig.21) on the
compound rest base. There is a calibrated dial (in
degrees B, Fig.21) below the rest to assist in
placement of the compound to the desired angle.
Fig.21

20
Adjustments
After a period of time, wear in some of the moving
components may need to be adjusts:
Saddle
1. Locate four hex found on the bottom rear of the
cross slide and back off one full turn each.
2. Turn each of four set screw with a hex wrench
until a slight resistance is felt. Do not over
tighten these screws.
3. Move the carriage with the hand wheel and
determine if the drag is to your preference.
Readjust the set screws as necessary to achieve
the desired drag.
4. Hold the socket set screw firmly with a hex
wrench and tighten the hex nut to lock the set
screw in place.
5. Move the carriage again and adjust again if
necessary.
Note: over adjustment will cause excessive
premature wear or the gibs.
Cross Slide
If the cross slide is too loosen, follow procedure
below to tighten:
1. Loosen the rear gib screw (not shown)
approximately one turn.
2. Tighten the front gib screw (B, Fig.22) a quarter
turn. Turn the cross slide handwheel to see if the
cross slide is still loose. If it is still loose, tighten
the front screw a bit more and try again.
3. When the cross slide is properly adjusted,
tighten the rear gib screw.
Note: over adjustment will cause excessive
premature wear of the gibs.
Compound Rest
Follow the same procedure as the cross slide
adjustment to adjust the compound rest. Rear gib
screw is shown (A, Fig.22). Front gib screw (not
shown) is by the handwheel.
Fig.22