General International 75-075 Manual

FEATURES
THIS HOLLOW CHISEL MORTISER IS MANUFACTURED AND
DESIGNED FOR SPECIALIZED WOODWORKERS.
• Heavy duty cast-iron construction, machined with precision.
• Head gas cylinder provides smooth performance.
• Control rods for depth and length stop.
• 5/8” and 3/4” sleeves for chisel shank.
• Threaded rod and vive clamp with handwheel.
• Heavy duty rack and gear provides the entire head to lower in
order to feed mortiser accurately into workpiece.
• Handwheels can be used to move cast-iron table in longitu-
dinal and lateral directions.
• Enclose fan cooled motor with starter capacitor and ribbed
body for resistance and long life.
• Switch with dust protection.
SPECIFICATIONS
1⁄4” TO 1” (6 À 26 mm)
8” (200 mm)
3” (77 mm)
6 1⁄4” x 10 3⁄16 (158 x 259 mm)
1⁄2” (13 mm)
12” x 12” (305 x 305 mm)
12” x 17” (305 x 432 mm)
14 1⁄2” (368 mm)
3” (77 mm)
38” (966 mm)
1720 RPM
1 HP, 115 V / 230 V, 1Ph
215 LBS (98 kg)
CHISEL CAPACITY
MAXIMUM CHISEL STROKE
DISTANCE FROM FENCE TO CENTER CHISEL
DISTANCE FROM Ø CHISEL TO TABLE (CHISEL 1/4”)
CHUCK CAPACITY
SIZE OF TABLE
SIZE OF BASE
TABLE MOVEMENT LONGITUDINAL
TABLE MOVEMENT LATERAL
OVERALL HEIGHT
SPINDLE SPEED
MOTOR
WEIGHT

1. Learn the machine’s applications and limitations,
as well as the specific potential hazards particular
to this machine. Follow available safety instructions
and safety rules carefully.
2. Keep working area clean and be sure adequate
lighting is available.
3. Do not wear loose clothing, gloves, bracelets, neck
laces, or ornaments.Wear face, eye, ear, respiratory
and body protection devices, as indicated for the
operation or environment.
4. Keep hands well away from chuck, bit and all mov
ing parts. Do not clear chips and sawdust away with
hands. Use a brush.
5. Make sure the bit is moving at operation speed
before mortising.
6. Do not push the chisel to hard. The bit and chisel
will perform better and be safer working at the rate
for which it was designed.
7. Whenever possible use a dust collector with shav
ing hood to minimize health hazards.
8. Never leave the machine with the power on.
9. Keep children away. Make sure that visitors are kept
at a safe distance from the work area.
10. Use recommended speed mortising accessory,
and workpiece material.
11. Never stand on tool. Serious injury could occur if
the tool is tipped or if the cutting tool is unintention-
ally contacted.
12. Be sure bit and chisel are securely locked in the
machine.
13. Use suitable support if stock does not have a flat sur
face.
14. Do not force the machine. It will do the job better
and be safer at a rate for which it was designed.
15. Keep guards in place and in working order. If a
guard must be removed for maintenance or clean-
ing make sure it is properly attached before using
the tool again.
16. Be sure that key and adjusting wrenches have been
removed before turning power on.
17. Use only accessories designed for the machine.
18. Make sure tool is properly grounded. If tool is
equipped with three-prong plug, it should be
plugged into a three-pole electrical receptacle.
Never remove the third prong.
19. Always disconnect tool before servicing and when
changing accessories such as bit and chisel.
20. Make sure that switch is in «OFF» position before
plugging in cord.
21. Hold material firmly against the table.
22. Use ONLY recommended accessories. Use of acces
sories NOT recommended by General International
may result in a risk of injury.
23. Do not use this mortising machine for other than it’s
intended use. If used for other purposes, General In
ternational disclaims any real or implied warranty
and holds itself harmless for any injury, which may
result from that use.
All component parts of GENERAL INTERNATIONAL machinery are carefully inspected during all production stages and each
machine is thoroughly inspected upon completion of assembly. Because of quality, GENERAL INTERNATIONAL agrees to
repair or replace any genuine part or parts which, upon examination, proves to be defective in workmanship or material
within a period of 24 months from date of purchase.In order to obtain warrantee, all defective parts must be returned
prepaid to GENERAL INTERNATIONAL MFG. Co Ltd. Repairs made without our written authorization voids all guarantees.
GENERAL ® INTERNATIONAL guarantee
SAFETY RULES
READ CAREFULLY BEFORE OPERATING THE MACHINE

3
GENERAL® INTERNATIONAL Mortising Machines are carefully tested and inspected before
shipment and if properly used will give perfect results. However, a reasonable amount of care
and attention is necessary to ensure perfect performance and accurate work. It is imperative
that you take a few moments to familiarise yourself with these instructions, as they will no doubt
save you a lot of time and trouble.
UNPACKING AND CLEANUP
To ensure maximum performance from your GENERAL® INTERNATIONAL Mortising Machine, clean it properly; and
install it accurately before use. As soon as you receive the 75-075, we recommend you follow these procedures:
1. Finish removing the contents of the shipping carton and compare with the content list.
2. Report damage, if any to your local distributor.
3. Clean all rust protected surfaces with a mild solvent or kerosene. Do not use lacquer thinner; paint thinner, or
gasoline. These will damage painted surfaces.
4. To prevent rust, apply a light coating of paste wax to surface.
ELECTRICAL REQUIREMENTS
Before connecting the machine to the power source, verify that the voltage corresponds as specified on the name-
plate of the machine. A power source with greater voltage than needed can result in serious injury to the user as
well as damage the machine. If in doubt, contact a qualified electrician before connecting to the power source.
The Mortiser 75-075 has been pre-wired at the factory for 115V operations. To avoid shock or fire, replace the power
cord if it gets worn out, cut or damaged in any way. Replace immediately before performing work operations.
1” HOLLOW CHISEL MORTISER
75-075
WARNING!
CAREFULLY READ AND UNDERSTAND YOUR OWNER’S
MANUAL BEFORE STARTING WORK OPERATIONS!
PARTS DESCRIPTION
OPERATING HANDLE
MOTOR
SWITCH
HEAD
GAS SPRING
CHISEL & BIT
DEPTH STOP
WORK STOP
VISE
FENCE
TABLE
SLIDE
BASE
1
2
3
4
5
6
7
8
9
10
11
12
13
1
2
4
6
8
3
5
9
11
10
12
Fig. 1
7
13

INSTALLATION AND SETUP
(4) Holes have been designed at the base of the cast iron to conveniently bolt and fasten your 75-075 Mortiser to
a workbench (optional stand item 75-045), or a solid work surface. Place your machine on the worktable; use a
marker to indicate the areas where the holes must be drilled. Properly fasten and bolt to surface. (Bolts and nuts
not provided)
Note: Work area must provide enough space on both sides of the machine to allow movement for the work operator
and clearance for long work materials. Avoid installing the machine in a small or dark work area, no obstacles
should interfere when work operations are being performed.
CHISEL & BIT INSTALLATION / REPLACEMENT (FIG.2)
1. Gently loosen lock knob; install your chisel and bit as illus-
trated. Chisel must be positioned and pushed up against the
bushing and into the slot, set the slot to the right or the left this will
permit loose chips to unload from chisel when cutting mortises.
2. Gently re-tighten the lock knob in order to hold in position.
3. Loosen chuck and move the bit into the chuck in order to
adjust the position of the bit.
4. The lower end of the bit must jut out from below the chisel
between 1/16» to 3/16»; according to the workpiece and the
work operations that need to be performed.
5. Re-tighten the chuck.
MORTISING
To prevent burning at the tip of the bit; a fast and steady feed
rate is required. Consider the type of material before feeding, the
machine may stall or slow down if the feed rate is too fast. Perform
practice cuts before starting work operations, various work material
require different feedings.
To avoid overheating or rupture to the chisel or bit; do not position
the slot against the blind end of the mortise; this will prevent the
chips to unload from the chisel.
WORK OPERATIONS
1. Depth stop must be set to the required depth of cut (Fig.3).
2. Place your workpiece on table; lock into position using the vise
clamp. Turn handwheel in order to move the table forward or
backwards. Adjust table in accordance with the workpiece to
be mortised.
3. Adjust the stops according to the length of cut required (Fig.4).
4. Press the «On» switch; steadily and firmly feed the chisel and bit
into the workpiece by pulling down on the operating handle.
5. To prevent burning at the tip of the bit; a fast and steady feed
rate is required. Consider the type of material before feeding,
the machine may stall or slow down if the feed rate is too fast.
Fig. 2
4
WARNING!
CAREFULLY READ AND UNDERSTAND YOUR OWNER’S
MANUAL BEFORE STARTING WORK OPERATIONS!
WARNING!
MACHINE MUST BE PROPERLY GROUNDED AT ALL TIMES
TO AVOID ELECTRIC SHOCK TO THE WORK OPERATOR!
Fig. 3
Fig. 4

5
6. Perform practice cuts before starting work operations, various
work material require different feedings
7. Complete the first mortising cut; carry the workpiece towards
the proper direction of the chisel slot to permit chips to
unload clearly. Move the workpiece in order for the chisel slot
to release chips into the already cut part of the mortise (Fig.5).
8. To permit chips to unload while mortising deep cuts; the cuts
must be carried out in several steps of 1» each cut. Place a
piece of scrap wood under the back end to support the work-
piece, this will prevent breakage at the back end.
SHARPENING BIT AND CHISEL
To ensure perfect performance and accurate work, it is necessary
to keep bit and chisel sharp at all times. Dull bit or chisel can cause
overheating and breakage resulting in unsatisfactory and inaccu-
rate results. If chisel and bit are badly worn and become difficult to
sharpen, they must be replaced immediately.
To sharpen: trace the original shapes and curves of the bit with
a small smooth filer. To restore sharpness, file the inside edge of
the spur, the sides of the brad point and the cutting edge inwards
towards the flutes of the bit (Fig.6). Never attempt to sharpen the
outside edge of the spur this will affect the diameter and perfor-
mance of the bit.
Chisel should always be sharpened with a proper size mortise
chisel cutter. Verify the dullness of the chisel, two or three turns of the
cutter in a carpenter’s hand brace should be enough to sharpen
the chisel. (Fig.7)
Relieve the inner corners of the chisel with a small triangular
smooth filer. Remove any particles from the outside of the chisel
with a fine oilstone. (Fig 8)
Chisel and bit will need to be replaced after a long period of use.
Worn out tools will result in inaccurate and unsatisfactory work
operations.
ATTENTION!
NEVER ATTEMPT TO LEAVE THE MACHINE RUNNING UNATTENDED!
Fig. 5
CHISEL SLOT
ON LEFT
CHISEL SLOT
ON RIGHT
MOVE WORKPIECE
THIS DIRECTION
MOVE WORKPIECE
THIS DIRECTION
WARNING!
ALWAYS DISCONNECT THE MACHINE FROM THE POWER SOURCE WHEN
NOT IN USE!
Fig. 6
FILE INNER
OF SPUR
FILE SIDES
OF BRAD POINT
FILE CUTTING
EDGE
Fig. 7
SHARPENING
STONE
PILOT
CHUCK
CHISEL
HOLD CHISEL IN
SOFT-FACED VISE
JAWS
Fig. 8
FILE
CHISEL
WARNING!
DISCONNECT MACHINE FROM POWER SOURCE BEFORE
PERFORMING ANY REPAIRS OR ADJUSTMENTS!
FAILURE TO COMPLY CAN CAUSE SERIOUS DAMAGES TO
THE WORK OPERATOR AND THE MACHINE!

6
TABLE ANGLE ADJUSTMENT
1. Loosen lock knob (A) and (B). (Fig.9)
2. Point the scale (D) to adjust fence (C) to the desired angle 0° - 30°.
3. Tighten lock knob (A) and (B).
HEAD ADJUSTMENT
1. Adjust head when handle (C) can not be set at proper
working position (Fig.10).
2. Loosen two screws (A) and adjust bolt (B) till chisel bit, working
piece and handle are at proper position for easy operation.
Tighten bolt (B) and screws (A).
Warning: Do not put hand under chisel bit when screws are loos-
ened.
HEAD ANGLE ADJUSTMENT
1. Using open wrench 19 mm to loosen screw (E) counter-
clockwise.(Fig. 10)
2. Minor tighten screw (H) for slight separating bracket (I) and
base (J), if the head can not be moved.
Warning: Be sure to hold the head when swivel the head to
desired angle to avoid the serious injuries.
3. Pull the pin outward to move the head to desired angle.
4. Adjust the head to desired angle.
5. Loosen screw (H) and tighten secure screw (E).
MAINTENANCE
1. Machine should be cleaned and dusted after work operations
are completed.
2. Occasionally lubricate the column, linkages and all other mov
ing parts using a general-purpose oil or grease.
3. Adjust and sharpen the chisel and bit when required.
Fig. 9
Fig. 10
Fig. 11

A
A
28
66
4
12
70 52
53
54
30
66
71
27
31
12
32
66
71
26
93
29
17
51
49
50
69
68
25
3
2
8
1
91
90
63
62
60
61
14
15
13
12
9
11
10-1
8
7
17
22
94
48
48-1
75
10
58
85
12
65
64
76
10
55
57
66
67
20
21
23
44-1
24
72
74
73
34
92
77
47
45
46
76
35-1
78
79
44
43
42
41
56
40
38
39
6
5
37
36
35
33
73
74
72
16
17-1
18
19
88
87
86
82
5
6
83
84
99
100
89
81
101
102
96
97
98
95
103
10
104
105
46A
9
DIAGRAM

7
PARTS LIST
IMPORTANT: When ordering replacement parts, always give the model number, serial number of the
machine and part number. Also a brief description of each item and quantity desired.
PIECE # DESCRIPTION SECIFICATIONS QTY
75075 - 01 BASE 1
75075 - 02 ADJUSTING BAR 1
75075 - 03 ROD SCREW 1
75075 - 04 HANDWHEEL 1
75075 - 05 SCREW M8 1
75075 - 06 SPRING WASHER 5/16 1
75075 - 07 WASHER 5/16 4
75075 - 08 SCREW 5/16 X 1 1/4 4
75075 - 09 DEPTH STOP BAR 1
75075 - 10 KNOB 2
75075 - 11 ADJUSTING SLEEVE 2
75075 - 12 SCREW 5/16 X 3/8 5
75075 - 13 BAR 2
75075 - 14 SCREW 1/4 X 3/8 1
75075 - 15 CORD CLAMP 1
75075 - 16 HEAD SUPPORT 1
75075 - 17 RING 1
75075 - 17-1 RING 1
75075 - 18 HANDLE GRIP 1
75075 - 19 HANDLE 1
75075 - 20 HANDLE SHAFT 6/15 1
75075 - 21 PIN 1
75075 - 22 GEAR 1
75075 - 23 HANDLE BODY 1
75075 - 24 PIN 8 1
75075 - 25 RING 15 1
75075 - 26 SLIDEPLATE GUARD 1
75075 - 27 SLIDEPLATE GUARD 1
75075 - 28 HANDLE 5/16 2
75075 - 28-1 HANDLE 3/8 1
75075 - 29 GEAR 1
75075 - 30 PIN 5/16 1
75075 - 31 GEAR SHAFT 1
75075 - 32 HANDWHEEL 6” 2
75075 - 33 GAS SPRING 1
75075 - 34 SCREW 1/4 X 1 4
75075 - 35 HEAD 1
75075 - 35-1 HEAD BODY 1
75075 - 36 STOP PLATE 1
75075 - 37 SCREW 1/4 X 3/4 2
75075 - 38 SCREW 1/4 X 5/8 2
75075 - 39 RACK 1
75075 - 40 SLIDE PLATE 1
75075 - 41 MOTOR 1
75075 - 42 CHUCK (OPTIONAL) 16 X 3/4 3
75075 - 43 SCREW 5/16 X 3/4 3
75075 - 44 NUT 5/16 1
75075 - 44-1 CHUCK 1
75075 - 45 CHISEL & BIT 1/4”- 3/8”-1/2”- 3/4” 4
75075 - 46 CHISEL BUSHING 5/8 1
75075 - 46A CHISEL BUSHING 3/4 1
75075 - 47 DRILL SHAFT 1
75075 - 48 TABLE 1
75075 - 48-1 FENCE 1
75075 - 49 SHAFT BOLT 1

8
PARTS LIST
IMPORTANT: When ordering replacement parts, always give the model number, serial number of the
machine and part number. Also a brief description of each item and quantity desired.
PIECE # DESCRIPTION SECIFICATIONS QTY
75075 - 50 ADJUSTING SLEEVE 2
75075 - 51 LOCK KNOB 2
75075 - 52 LONG STOP PLATE 1
75075 - 53 SPRING WASHER 1/4 2
75075 - 54 SCREW 1/4 X 5/8 2
75075 - 55 LONG STOP BODY 1
75075 - 56 SWITCH 1
75075 - 57 LONG STOP BAR A 1
75075 - 58 LONG STOP BAR B 1
75075 - 59 KNOB 1
75075 - 60 VISE PLATE 1
75075 - 61 SCREW ROD 1
75075 - 62 VISE BODY 1
75075 - 63 HANDWHEEL 1
75075 - 64 WASHER 5/16 2
75075 - 65 SCREW 5/16 X 1 3/4 2
75075 - 66 NUT 5/16 10
75075 - 67 WASHER 5/16 2
75075 - 68 RACK 1
75075 - 69 SCREW 5/16 X 5/8 3
75075 - 70 SLIDE BODY 1
75075 - 71 SCREW 5/16 X 5/8 6
75075 - 72 CHUCK COVER 2
75075 - 73 WASHER 1/4 2
75075 - 74 KNOB 2
75075 - 75 SET SCREW 1/4 X 3/4 1
75075 - 76 LOCK KNOB 1
75075 - 77 ADJUSTING BRACKET 1
75075 - 78 WASHER 3/8 1
75075 - 79 BOLT 3/8 X 4 7/8 1
75075 - 81 BRACKET 1
75075 - 82 SCREW 1/2 X 1 3/4 2
75075 - 83 SCREW 1/2 X 2 5/8 3
75075 - 84 WASHER 1/2 1
75075 - 85 LOCK KNOB M10 1
75075 - 86 LOCK KNOB M10 1
75075 - 87 SCALE 1
75075 - 88 NUT 5/16 1
75075 - 89 SCALE 1
75075 - 90 POINTER 1
75075 - 91 SCREW 3/16 X 3/8 1
75075 - 92 SCREW 5/16 X 1 2
75075 - 93 LOCK KNOB 1
75075 - 94 SCREW 1/4 2
75075 - 95 SLEEVE 1
75075 - 96 PIN 1
75075 - 97 BAR 1
75075 - 98 SCREW 5/16 X1 2
75075 - 99 NUT 1/4 1
75075 - 100 SCREW 1/4 X1 1
75075 - 101 NUT 1/4 3
75075 - 102 SCREW 1/4 X 1 3
75075 -103 NUT 1
75075 -104 NUT 3/8 1

IMPORTANT: When ordering replacement parts, always give the model number, serial number
of the machine and part number. Also a brief description of each item and quanti
ty desired.
75-075
8360, Champ-d’Eau, Montreal (Quebec)
Canada H1P 1Y3
Tel.: [phone]
Fax : [phone]
www.general.ca