Alto American 8 User manual

Form No. 78149C 6/01 AMERICAN SANDERS TECHNOLOGY Printed in the U.S.A.
READ THIS BOOK
This book has important information for the use and safe operation of this machine. Failure to read
this book prior to operating or attempting any service or maintenance procedure to your ALTO machine
could result in injury to you or to other personnel; damage to the machine or to other property could
occur as well. You must have training in the operation of this machine before using it. If your operator
cannot read this manual, have it explained fully before attempting to operate this machine.
Si Ud. o sus operadores no pueden leer el Inglés, se hagan explicar este manual completamente
antes de tratar el manejo o servicio de esta máquina.
All directions given in this book are as seen from the operator’s position at the rear of the machine.
For new books write to: ALTO U.S. INC., 2100 Highway 265, Springdale, Arkansas 72764.
American 8
Service
Manual
Order Parts Here:
www.ivie-ent.com/parts
Ph:[phone]

Page 20 AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual
AMERICANSANDERSTECHNOLOGY
Model American 8 Floor Sander
Drawing #1 Handle Assembly 12/00
1
45
2
345
67
8
9
10
11
12
15
13
21
22
833 23
13
11
10
26
3
34
32
31
35
36
41
38
43
37
39
31 42
41
40
36
32
24
25
27
28
26
29
30
17
16
18
19
20
44
22
8
33

AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual Page 21
AMERICANSANDERSTECHNOLOGY
Model American 8 Floor Sander
Parts List #1 Handle Asembly 12/00
Ref No. Part No Description Qty
1 ref. Cord Set 1
2 41706A Connector 1
3 962065 Screw - 8-32 x ¼ Pn St Mach 4
4 43501A Inlet - 20A, 250V 1
5 962070 Screw - 6-32 x ¼ Pn St Mach 4
6 980607 Washer - #1106 Shakeproof 4
7 962794 Screw - 10-24 x 1 5
8 980650 Washer - 3/16 Lock 7
9 22127C Cover - Switch Housing 1
10 48901A Wire Ass'y - Green 1
11 980699 Washer - #1210 Shakeproof 3
12 48900A Wire Assembly Ground 1
13 85393A Screw - 10-24 x ¼ Pn St Mach 3
14
15 49023A Wire Ass'y - Black 2
16 80021A Bolt 3/8 x 5/86
17 66151A Pivot Control Rod 1
18 80022A Bolt , Shoulder ½ x 5/81
19 67129A Adjuster, Control Rod 2
20 920148 Nut 3/8 - 16 1
21 41411A Switch - Circuit Breaker 1
22 85517A Screw - 10-24x½ 2
23 64405A Handle - Steering 1
24 21904C Clamp 1
25 85818A Screw 5/16 -18x 2½ Hex St 1
26 920284 Nut ¼-20 2
27 66694A Plate, Control Lever 1
28 85393A Screw ¼-2 x 1¼ 2
29 980646 Washer ¼ 1
30 25602A Lever, Control 1
31 920256 Nut - 5/16-18 Hex 3
32 86200A Screw 3/8 -16 x 5/8 St St Dogpt 2
33 51074A Clamp - Cord 2
34 980621 Washer - .1681 x .3700 SH 1108 1
35 20704C Housing - Switch 1
36 85816A Screw - 5/16 -18x1¾ 2
37 41917A Cord - Interconnecting 1
38 66116C Pipe - Handle 1
39 962288 Screw - 3/8-16 X 1" Hex St Mach 3
40 21105C Mount - Handle 1
41 980652 Washer -.319 x .586 x .078 St Lk 2
42 980638 Washer - 3/8Lt Spring Type 3
43 41707A Connector 1
44 67143A Rod Control 1
45 45608A Plug 1

Page 22 AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual
AMERICANSANDERSTECHNOLOGY
Model American 8 Floor Sander
Drawing #2 12/00
1
7
6
5
4
13
14 15
16
17
18
104
10312
10
11
100
99 98
97
96
95
94
93
91
92
90
89
88
53
87
8
101
102 2
3
60
9
19 20 21
22
23 24 25
26
27
64
65
63
61
62
3871
66
39
56
67
70
51 45
68
69
25
36
37
41 24
42
51
45
55
11
56
575859
46
47
72
73
74
75
79 80
81 82
767778
54
10
5152
49
48
85
84
35
34
33
31
30
29
28
83
105

AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual Page 23
54 66169A Pulley - Fan Shaft 1
55 66167A Pulley - Drum 1
56 80501A Key - 5/16 Sq. x 1.25 2
57 68703A Washer - Drum Pulley 1
58 980652 Washer - .319 x .586 x .078 1
59 962258 Screw - 5/16-18 x 1" Soc Cap 1
60 26107C Platform Motor 1
61 962262 Screw - 8-32 x ¼ St St Cup Pt 1
62 22101A Cover - Drum 1
63 62404A Clamp - Bumper Rear 1
64 962348 Screw - 10-24 x ½ Flat St Cap 1
65 31210A Bumper - Drum Cover 1
66 26900A Ring - Lock-Pan-Dust 1
67 67311A Screw 1
68 81900A Nut - 7/16 -14 Hex St 1
69 26100A Pan - Dust 1
70 61600A Clip - Dust 1
71 65301A Key #606 1
72 920280 Nut - 5/8-18 x 3/8Hex Jam 1
73 87102A Washer - .62 x 1.09 x .16 1
74 20400B Arm Idler 1
75 68000A Stud - Idler 1
76 87005A Washer - .52 x 1.00 x 1.00 1
77 87101A Washer - .50 X .12 Lock St 1
78 920132 Nut - ½-20 Hex Jam 1
79 67813A Spacer - Idler Bearing 1
80 67701A Sleeve - Idler 1
81 902550 Bearing 1
82 67317A Shaft - Idler 1
83 34222A Gasket - Pan Dust 1
84 980651 Washer-11/32 x 11/160 x 1/16 3
85 85811A Screw - 3/8-18 x ¾ 3
86 962103 Screw - 5/16-18 x 3/82
87 962216 Screw - 3/8-16 x ¼ 4
88 962870 Screw - 3/8-16 x 1 1
89 64460A Handle Motor 1
90 32357A Cover Handle 2
91 930087 Rivet 2
92 74044A Plate Safety 1
93 697502 Strain Relief 1
94 41305A Capacitor Start 2
95 41304A Capacitor Run 1
96 47378A Switch Start 1
97 962823 Screw - ¼-20 x ½ 2
98 980614 Washer 2
99 45604A Plug Locking 1
100 41945A Cord Motor 1
101 915098 Key ¼-52 x 1½ 1
102 57712A Ring Retaining 1
103 87034A Retainer Pulley 1
104 962288 Screw 3/8-16 x 1 1
105 67642A Shim, Motor 4
AMERICANSANDERSTECHNOLOGY
Model American 8 Floor Sander
Parts List #2 12/00
Ref # Part No. Description Qty
Part # Description Qty.
51188A Bearing Front 1
902547 Bearing Rear 1
40316A Armature Assembly 1
Part # Description Qty.
50563A End Bell 1
52768A Front Cover 1
53998A Fan 1
52769A Fan Cover 1
Motor Parts Not Illustrated
Ref # Part No. Description Qty
1 62800A Pipe - Ass'y 1
2 85706A Screw - ½ - 13 x 1¾ Hex St 1
3 87006A Washer - .56 X 1.38 X .11 Flat 1
4 60401A Arm - Cable 1
5 925036 Pin - Cotter 1
6 66110A Pipe Ass'y 1
7 50954A Dust - Bag 1
8 44639A Motor 230/60 1
44640A Motor 240/50 1
9 920260 Nut - 3/8-16 x 5/16 Hex 2
10 50920A Belt - V 1
11 51024A Belt - V 1
12 66168A Pulley - Motor 1
13 920256 Nut 5/16 - 18 Hex 1
14 85820A Screw - 3/8-16 x 5/8Hex St Cap 3
15 85816A Screw - 5/16-18 x 1¾ Hex St Flt 1
16 27801C Support - Dust Pipe 1
17 34223A Gasket - Pipe Support 1
18 23405B Frame - Main 1
19 962016 Screw - 10-24 x ½ Pn St Mach 3
20 980650 Washer - 1941 x 3230 x 040 Lk 3
21 62608C Cover - Housing Drum 1
22 54305A Gasket 1
23 67316A Screw - Drum Lock 1
24 51110A Bearing - Ball 2
25 64703A Housing - Bearing Shaft 2
26 67811A Spacer - Drum 1
27 69032A Screw - Motor Locating 2
28 81202A Nut - 7/16-14 Hex L.H. 1
29 87002A Washer - .47 x .94 x .06 Flat St 1
30 23301A Fan 1
31 61602A Collar 1
33 902567 Bearing Ball 1
34 65302A Key - 1/8x ½ #3 Woodruff 1
35 67411A Shaft - Fan 1
36 67414A Shaft - Drum Cover 1
37 67911A Spring 1
38 13501A Drum - RM 1
39 67425A Shaft Drum 1
NI 18601A Shaft Ass'y Drum (1)
includes 56, 39. 71
41 67313A Spacer - Drum Bearing 1
42 66918A Retainer - Bearing 1
45 962983 Screw - ¼-20 x 5/8Pn St Mach 4
46 34225A Gasket - Plate Support 1
47 26503C Plate Support - Fan 1
48 51111A Bearing Ball 1
49 62001A Cap - Bearing 1
50 *38109A Seal Dust Pipe 1
51 980657 Washer - 17/64 I x 31/64 O x 1/16 7
52 962823 Screw - ¼ - 20 x ½ Pn St Mach 3
53 77234A Label, Lifting Warning 1
*NOTE: #50 not illustrated.

Page 24 AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual
AMERICANSANDERSTECHNOLOGY
American 8 Floor Sander
Assembly Drawing #3 6/01
1
46
9
10
66 8
7
5
2
3
12
17 18
20
21
25
26
22
23
35
36 37
39
40
41 63
62
54
64 65
54
62
16
30
312632
34
33
14
15
29
28
27
45
46
47
49
11
50
52
22
58
41
63
51
44
43
59
13
15
14
11
19
48
67
60
24
38
42
68
40
Optional Urethane Wheels
63 41 60
54 57 56
55 54 53
64
64
64

AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual Page 25
Ref. No Part No. Description Qty Qty
1 962052 Screw - 10-24 x ½ Flt St Mach 1 1
2 962161 Screw - 10-24 x 3/8St St Cuppt 2 2
3 25200C Knob - Hand 1 1
4 66912A Retainer, Screw Adjusting 1 1
5 67309A Screw 1 1
6 67312A Screw 2 2
7 87000A Washer 1 1
8 67905A Spring 1 1
9 66123A Plunger, Spring 2 2
10 67906A Spring 2 2
11 67107A Rod - Pivot 1 1
12 23405B Frame, Main 1 1
13 66628C Plate, Cover Wheel 1 1
14 962015 Screw, 10-24 x 3/8Pn St Mach 6 6
15 980650 Washer, Lock 6 6
16 62801A Eccentric 1 1
17 87007A Washer, Control Shaft Eccentric 1 1
18 980614 Washer, #1114 Shakeproof 1 1
19 85700A Screw, ¼-20 x 1" Hex 1 1
20 70224B Kit Guard, Belt 1 1
21 60715B Bolt, Pivot 1 1
22 87003A Washer, .59 x 1.00 x .09 Flat 4 2
23 67812A Spacer, Bracket 1 1
24 51069A Tube, Latch 1 1
25 962823 Screw, ¼-20 x ½ Pn St Mach 3 3
26 980657 Washer, 17/64 I x 31/64 O x 1/16 44
27 920112 Nut, #6-32 Hex 2 2
28 980607 Washer, #1106 Shakeproof 2 2
29 66627A Cover, Truck Wheel 1 1
30 87004A Washer, Fit St 2 2
31 61600A Clip, Dust 1 1
32 962983 Screw, ¼-20 x 5/8Pn St Mach 1 1
33 63904A Clamp, Belt Guard 1 1
34 85313C Screw, 6-32 x 3/8Pn St Mach 2 2
35 66913A Retainer, Bearing 1 1
36 51112A Bearing, Ball 2 2
37 67821A Spacer 1 1
38 81102A Nut, ¼-20 ESNA 2 2
39 29403C Yoke, Wheel 1 1
40 60101A Axle 3 1
41 87101A Washer 3 3
42 51071A Bracket, Latch 1 1
43 920160 Nut 5/16 -18 1 1
44 86201A Screw 5/16 -18 x 1" 1 1
45 67143A Rod, Control 1 1
46 920260 Nut 3/8-16 x 5/16 11
47 53917B Clevis,Control Rod 1 1
48 925036 Pin, Cotter 3/32 x ¾ 1 1
49 66503A Pin, Fork 1 1
50 62000A Nut, End 1 1
51 67412A Shaft, Control 1 1
52 21101A Bracket, Truck Wheel 1 1
53u60547A Axle - 2
54u51225A Bearing, Ball 6 6
55u167312 Ring, Retainer - 2
56u60481A Spacer - 2
57u50992A Wheel, Asm. - 2
58 54000A Fitting, Lub 2 2
59 57101A Plug, Soft 1 1
60u60544A Spacer 2 2
62 67810A Spacer 2 2
63u920196 Nut, ½ - 13 3 3
64 59928A Wheel (Steel) 3 -
u10243A KIt, Wheel (Urethane)(Optiona) - -
u59907A Wheel (Canvas) - 1
65 67817A Spacer 1 -
66 81209A Nut, ½-13 Flange 1 1
67 85806A Screw, ¼-20 x ¾ 1 1
68 87007A Washer, ¼- ¾ x .06 1 1
AMERICANSANDERSTECHNOLOGY
American 8 Floor Sander
Assembly Parts List #3 6/01
07032C
07048C
07105A
07106A
NOTE: uindicates a
change has been made
since the last publication
of this manual.

Page 26 AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual
RefRef. # Part No. Description Qty
1 60724A Belt, Operating 1
2 59811A Wrench, End ¾ x 7/16 1
3 59810A Wrench, End 9/16 x 7/16 2
4 59815A Wrench 5/32 1
5 64415A Handle, Carrying 1
6 42201A Cord Set 230V 60Hz 1
40010A Cable Australia 1
7 68315A Template 1
AMERICANSANDERSTECHNOLOGY
American 8 Floor Sander
Accessories Drawing & Parts List #4 12/00
1
2
1
2
3
5
4
5
7
6

AMERICAN SANDERS TECHNOLOGY American 8 Floor Sander Operator's Manual Page 27
Chatter - Wave Prevention
American Sanders Technology Sanders are designed and manufactured to the most rigid tolerances. How-
ever, after a finishing cut it is possible to see “chatter” or “waves”.
The best guarantee to remove the chatter is to finish the floor with a
rotating horizontal sander, such as American Sanders Technology’s Sander 16.
To minimize chatter when using a belt or drum sander the following steps should be taken:
1) DRUM PAPER...insure the paper is secured in the slot, but not too tight. Paper that
is too tight will force the drum slot wider, leaving a “slot mark chatter” on the floor.
2) DRUM MARKS........are caused by the operator lowering the drum to the floor without forward
traverse. These marks should be removed by cutting at a 45 degree angle to the mark. Cutting
at the mark while maintaining the same path will only increase the mark depth and width.

Chatter Wave Prevention (cont)
3) UNEVEN WALKING PACE..... can leave lengthy “waves”. The machine cuts more material during
the slower pace. Pay particular attention to a steady, even pace.
4) EXCESSIVE LIGHT CUTS.... may reveal high spots on the paper/contact wheel and cause chatter.
Take a heavier cut and increase the pace.
5) DEBRIS.... lodged between the paper and the drum will leave chatter. On a belt sander, debris may
be adhered to the drum. Insure the drum is clean and free of debris before placing the paper on.
6) SANDER PAPER QUALITY....may vary. Belt seams can be thicker on low quality paper and cause
chatter. Use only American Sanders Technology specified sandpaper.
PROPER CARE OF YOUR MACHINE CAN MINIMIZE CHATTER AND WAVES.
1) V-BELTS.... can cause vibration and chatter if they are of low quality. Use only belts specified by
American Sanders Technology.
2) TRUCK AND CASTER WHEELS....with flat spots, out-of-roundness, or debris adhered to their surface
can cause “waves” or a “chatter effect”. Always clean and inspect all wheels before starting to sand,
and before the finish cut. Replace or true the wheels if found to be out-of-round.
3) DUST PICK-UP SHOES.......may need adjusted differently for different materials that are to be
sanded. An improperly adjusted shoe will leave trailing debris that will be run over by the wheels and
cause “random waves”.
4) CONTACT WHEELS (DRUMS).......may be out-of-round and cause “chatter”. Contact your Ameri-
can Sanders Technology dealer for assistance to true or replace the drum.
5) BEARINGS......in the motor, drum, or fan system may become worn and induce vibration which could
cause “chatter”.
6) PULLEYS.....that are damaged or severly worn can induce vibration and cause “chatter”. Contact
your American Sanders Technology dealer for assistance.
American Sanders Technology is not responsibile for rework of floors that are unacceptable to
the customer. It is your responsibility to insure your equipment is in proper operating order, and
that you use the right machine for the job.