Portable Pneumatic Squeezers DOTCO - Apex Tool

Operating & Parts Manual 

823224 10/00 

DOTCO ® 

Portable Pneumatic Squeezers 

DS 

- X XX - XX 

Series: 

DS 

Type: 

A 

C 

Alligator Jaw Type 

"C" Yoke Type 

Pounds 

Maximum Force: 

28 2800 

44 4400 

Reach: 

20 2.0 inches 

24 2.4 inches 

NORTH AMERICA 

CooperTools 

P.O. Box 1410 

Lexington, SC 29071 

EUROPE 

Cooper Power Tools GmbH & Co. 

Postfach 30 

D-73461 Westhausen 

1

Safety Recommendations 

For your safety and the safety of others, read and understand the 

safety recommendations and operating instructions before operating 

any power tool with this balance arm. 

Always wear protective equipment: 

! 

WARNING 

! 

WARNING 

Impact resistant eye protection 

must be worn while operating 

or working near this tool. 

For additional information on eye protection and face protection, 

refer to Federal OSHA Regulations, 29 Code of Federal Regulations, 

Section 1910.133., Eye and Face Protection, and American 

National Standards Institute, ANSI Z87.1, Occupational and Educational 

Eye and Face Protection. Z87.1 is available from the American 

National Standards Institute, Inc., 11 West 42nd Street, New York, 

NY 10036. 

! 

CAUTION 

Personal hearing protection is 

recommended when operating 

or working near this tool. 

Hearing protection is recommended in high noise areas 85 dBA or 

greater. The operation of other tools and equipment in the area, 

reflective surfaces, process noises and resonant structures can 

substantially contribute to, and increase the noise level in the area. 

Excessive air pressure above 90 PSIG or worn motor components 

can also increase sound level emitted by tool. Proper hearing 

conservation measures, including annual audiograms and training 

in the use and fit of hearing protection devices may be necessary. 

For additional information on hearing protection, refer to Federal 

Regulations, Section 1910.95, Occupational Noise Exposure, and 

American National Standards Institute, ANSI S12.6, Hearing Protectors. 

Keep hands and fingers away from pinch points or any placements 

of squeezer that will entrap hands or fingers. 

! 

Keep hands and fingers away 

from jaws or pinch points that 

will entrap hands or fingers. 

CAUTION 

Before any tool is used, check the throttle (if so equipped) for proper 

operation (i. e., throttle moves freely and returns to closed position). 

Being careful not to endanger adjacent personnel, clear an air hose 

of accumulated dust and moisture. Before connecting a tool to an air 

supply or removing a tool from service, make sure the air line is shut 

off and drained of air. This will prevent the tool from operating if the 

throttle is accidently engaged. 

! 

WARNING 

Repetitive work motions and/or vibration 

may cause injury to hands and arms. 

Use minimum hand grip force consistent 

with proper control and safe operation. 

Keep body and hands warm and dry. 

Avoid anything that inhibits blood circulation. 

Avoid continuous vibration exposure. 

Keep wrists straight. 

Avoid repeated bending of wrists and hands. 

Some individuals may be susceptible to disorders of the hands and 

arms when performing tasks consisting of highly repetitive motions 

and/or exposure to extended vibration. Cumulative trauma disorders 

such as carpal tunnel syndrome and tendonitis may be caused or 

aggravated by repetitious, forceful exertions of the hands and arms. 

Vibration may contribute to a condition called Raynaud's Syndrome. 

These disorders develop gradually over periods of weeks, months, 

and years. It is presently unknown to what extent exposure to 

vibrations or repetitive motions may contribute to the disorders. 

Hereditary factors, vasculatory or circulatory problems, exposure to 

cold and dampness, diet, smoking and work practices are thought to 

contribute to the conditions. 

2

Safety Recommendations 

Any tool operator should be aware of the following warning signs and 

symptoms so that a problem can be addressed before it becomes a 

debilitating injury. Any user suffering prolonged symptoms of 

tingling, numbness, blanching of fingers, clumsiness or weakened 

grip, nocturnal pain in the hand, or any other disorder of the 

shoulders, arms, wrists, or fingers is advised to consult a physician. 

If it is determined that the symptoms are job related or aggravated 

by movements and postures dictated by the job design, it may be 

necessary for the employer to take steps to prevent further occurrences. 

These steps might include, but are not limited to, repositioning 

the workpiece or redesigning the workstation, reassigning workers 

to other jobs, rotating jobs, changing work pace, and/or changing 

the type of tool used so as to minimize stress on the operator. Some 

tasks may require more than one type of tool to obtain the optimum 

operator/tool/task relationship. 

The following suggestions will help reduce or moderate the effects 

of repetitive work motions and/or extended vibration exposure: 

• Use a minimum hand grip force consistent with 

proper control and safe operation 

• Keep body and hands warm and dry (cold 

weather is reported to be a major factor contributing 

to Raynaud's Syndrome) 

• Avoid anything that inhibits blood circulation 

—Smoking Tobacco (another contributing 

factor) 

—Cold Temperatures 

—Certain Drugs 

Avoid OK Avoid Avoid OK Avoid 

Extension Neutral Flexion Radial Deviation Neutral Ulnar Deviation 

• Tasks should be performed in such a manner 

that the wrists are maintained in a neutral position, 

which is not flexed, hyperextended, 

or turned side to side. 

• Stressful postures should be avoided — select 

a tool appropriate for the job and work location 

• Avoid highly repetitive movements of hands 

and wrists, and continuous vibration exposure 

(after each period of operation, exercise to 

increase blood circulation) 

• Keep tool well maintained and replace worn 

parts 

Work gloves with vibration reducing liners and wrist supports are 

available from some manufacturers of industrial work gloves. Tool 

wraps and grips are also available from a number of different 

manufacturers. These gloves, wraps, and wrist supports are designed 

to reduce and moderate the effects of extended vibration 

exposure and repetitive wrist trauma. Since they vary widely in 

design, material, thickness, vibration reduction, and wrist support 

qualities, it is recommended that the glove, tool wrap, or wrist support 

manufacturer be consulted for items designed for your specific 

application. WARNING! Proper fit of gloves is important. Improperly 

fitted gloves may restrict blood flow to the fingers and can 

substantially reduce grip strength. 

For more information on the safe use of portable air tools, see the 

latest edition of ANSI B186.1, Safety Code for Portable Air Tools, 

available from the American National Standards Institire, Inc. 11 

West 42nd Street, New York, NY 10036. 

This information is a compilation of general safety practices obtained 

from various sources available at the date of production. However, 

our company does not represent that every acceptable safety 

practice is offered herein, or that abnormal or unusual circumstances 

may not warrant or require additional procedures. Your work 

may require additional specific safety procedures. Follow these 

procedures as required by your company. 

Warning Labels 

The warning labels found on these tools are an essential part of this 

product. Labels should not be removed. Labels should be checked 

periodically for ligibility. Replace warning labels when missing or 

when the information can no longer be read. Replacement labels 

can be ordered as any spare part. 

The air compression riveter model 44 develops a squeezing force 

of 4400 pounds and the 28 develops 2800 pounds when it is operated 

with an air pressure of 90 PSI. The dimensions of the jaw have 

been designed to ensure the users safety. Changes in the jaw (by 

grinding or any other machining process) should not be made. If an 

unauthorised change is made, the manufacturer will be released 

from its products liabilfty. To ensure product safety, no changes or 

modifications should be made from its product liabilfty. The same is 

true if the compression riveter is used with higher than specified air 

pressure. 

3

OPERATION 

The rivet squeezers operate on 90psig (6.2bar) compressed 

air supply using a 1/4" hose 8' in length and if additional 

hose is needed the next size larger should be connected to 

the 1/4" hose. 

It is recommended to use oiled air in order to increase seals 

and pistons lifetime. A lubricator regulating filter should be 

supplied to the installation. 

•This riveter is equipped with a two pneumatic pistons cylinder, 

pushing a roller bearing by means of a wedge. 

•When pushing the lever (push and turn), air pressure is 

directed to the two rear chambers of the two pistons through 

the valve. 

•The wedge at the end of the piston is a two angle shape 

so: 

•At the end of the stroke, the moving jaw moves 

quickly (quick feed maximum force). 

•At the end of the stroke, the moving jaw moves 

slowly (working feed maximum force). 

TROUBLESHOOTING 

The squeeze is not correct: 

• Wrong adjustment 

• Check the distance between the rivet sets (often to small) 

• Adjust the rivet sets 

The squeezing force is too weak: 

• Check the air pressure 

• Check the rivet set adjustment 

• Check the condition of the wedge 

The tool does not work: 

• Take the valve flap apart 

• Check the valve seals 

• Check the pistons seals 

•The rivet squeezer must be adjusted so that the maximum 

squeezing force takes place at the end of the cylinder stroke 

(see adjustment section). 

Releasing the lever will automatically send both pistons back 

for to their starting positions - The holder comes back to 

home position by spring. 

As described above, the maximum riveting force being at 

the end of the pistons stroke, the holder final position must 

be checked at the end of this stroke. 

Because these squeezers are to be used on sheet metal of 

various thickness, the holder is equipped with a knob adjustment 

to take care of this. 

Adjust holder so clearance between the two rivet sets meets 

the riveting thickness (flush head or cupped set). In that 

position, the riveter delivers the maximum force. 

•To adjust the squeezer, it is recommended to use a sample 

piece of sheet metal. 

•The above steps must be followed to adjust the machine 

to avoid damage to the tools - the manufacturer can not be 

held responsible for damage caused to the tool by not following 

the above instructions. 

4

RIVET SQUEEZER SETS 

DS 400 

For countersink rivets 

Part No. Part Description Dimensions 

70-2205 Set, Rivet Squeezer (DS400 .354d X .157L) 












DS 401 

For universal head type rivets 

Part No. Part Description Dimensions 













5

DS-A44-24, DS-A28-24, DS-C44-20 & DS-C28-20 

DS-A44-24 

& 

DS-C44-20 

DS-A44-24 

DS-A28-24 

DS-C44-20 

DS-C28-20 

NOTE: The stroke limit screw and the nut is packaged separately with the squeezer. It is used to 

limit the piston stroke. The screw and gasket are regularly assembled with the squeezer on the 

cylinder head. In order to use the limit stroke screw, the screw and gasket should be removed 

(customer's choice). Refer to drawings for more information and part numbers. 

6

DS-A44-24 

7

DS-A44-24 

Part No. 

70-1000 

70-1001 

70-1071 

70-1072 

70-1004 

70-1111 

70-1006 

70-1007 

70-1008 

70-1009 

70-1010 

70-1011 

70-1012 

70-1013 

70-1014 

70-1015 

70-1016 

70-1017 

70-1018 

70-1019 

70-1021 

70-1023 

70-1024 

70-1025 

70-1026 

70-1027 

70-1028 

Part Description 

plate 

seal 

spring 

spring 

piston assembly 

shaft 

fork 

wedge 

screw 

guard 

circlips 

shaft 

shaft 

roller bearing 

needle 


pin 

spring 

nut 

snap holder for 3/16" dia. 

moving jaw 3/16" dia". 

stationary jaw 

cylinder 

rivet 

identification tag 

screw 

lever 

Item Qty. Part No. Part Description Item Qty. 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

10 

09 

08 

07 

06 

05 

04 

03 

02 

01 

48 

47 

46 

45 

2 

2 

2 

2 

1 

1 

1 

1 

1 

1 

4 

2 

2 

2 

84 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

1 

1 

70-1029 

70-1030 

70-1031 

70-1032 

70-1033 

70-1110 

70-1038 

70-1039 

70-1040 

70-1041 

70-1042 

70-1043 

70-1044 

70-1045 

70-1046 

70-1047 

70-1048 

70-1049 

70-1109 

70-1107 

70-1095 

70-1099 

SW102 

spring 

lever 

screw 

gasket 

seal 

inlet bushing 

spring 

"O"-ring 

valve assy. 

bushing 

cylinder head 

nut 

piston 

shaft 

"O"-ring 

"O"-ring 

spacer 

retaining ring 

stroke limit screw (Optional) 

nut (Optional) 

gasket 

screw 

swivel inlet (not shown) 

44 

43 

42 

41 

40 

38 

35 

34 

33 

32 

31 

30 

29 

28 

27 

26 

25 

24 

52 

51 

49 

50 

1 

1 

6 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

1 

1 

1 

1 

8

DS-C44-20 

9

DS-C44-20 

Part No. 

70-1111 

70-1006 

70-1112 

70-1031 

70-1050 

70-1051 

70-1053 

70-1043 

70-1054 

70-1055 

70-1056 

70-1012 

70-1013 

70-1014 

70-1015 

70-1058 

70-1059 

70-1060 

70-1061 

70-1062 

70-1064 

70-1065 

70-1066 

70-1067 

70-1068 

70-1070 

70-1025 

70-1026 

70-1027 


shaft 

fork 

wedge 

screw 

guard 

shaft 

spacer 

nut 

screw 

circlips 

shaft 

shaft 


needle 


lever 

right plate 

left plate 

set 

set holder 

spring 

washer 

knurled knob 

spring 

"C" yoke for 3/16" dia. 

cylinder 

rivet 


screw 


26 

25 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

10 

09 

08 

07 

06 

05 

04 

03 

02 

01 

59 

53 

52 

1 

1 

1 

7 

1 

1 

1 

3 

2 

2 

1 

3 

2 

84 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

1 

70-1028 

70-1029 

70-1030 

70-1032 

70-1033 

70-1110 

70-1038 

70-1039 

70-1040 

70-1041 

70-1042 

70-1044 

70-1045 

70-1046 

70-1047 

70-1048 

70-1049 

70-1000 

70-1001 

70-1071 

70-1072 

70-1004 

70-1109 

70-1107 

70-1099 

70-1095 

70-1069 

SW102 

lever 

spring 

lever 

gasket 

seal 

inlet bushing 

spring 

"O"-ring 

valve assy. 

bushing 

cylinder head 

piston 

shaft 

"O"-ring 

"O"-ring 

spacer 

retaining ring 

plate 

seat 

spring 

spring 




screw 

gasket 

pin 


51 

50 

49 

48 

47 

45 

42 

41 

40 

39 

38 

37 

36 

35 

34 

33 

32 

31 

30 

29 

28 

27 

58 

57 

56 

55 

54 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

2 

2 

2 

2 

1 

1 

1 

1 

1 

1 

1 

10

DS-C28-20 

11

DS-C28-20 

Part No. 

70-1079 

70-1080 

70-1043 

70-1054 

70-1055 

70-1081 

70-1082 

70-1083 

70-1084 

70-1085 

70-1086 

70-1087 

70-1088 

70-1089 

70-1090 

70-1091 

70-1092 

70-1093 

70-1094 

70-1096 

70-1097 

70-1066 

70-1067 

70-1098 

70-1100 

70-1025 

70-1026 


slide 

guide 

nut 

nut 

circlips 

shaft 

lever 

screw 

shaft 

shaft 

shaft 


needle 


lever 

adapter 

set 

guide 

set holder for 3/16" dia. 

spring 

washer 

knurled knob 

spring 

"C" yoke for 3/16" dia. 

cylinder 

rivet 



25 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

10 

09 

08 

07 

06 

05 

04 

03 

02 

01 

52 

51 

1 

1 

3 

2 

2 

1 

2 

1 

1 

2 

1 

1 

72 

3 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

70-1027 

70-1078 

70-1031 

70-1032 

70-1110 

70-1033 

70-1038 

70-1039 

70-1040 

70-1041 

70-1042 

70-1000 

70-1001 

70-1077 

70-1076 

70-1004 

70-1111 

70-1006 

70-1074 

70-1073 

70-1109 

70-1107 

70-1099 

70-1095 

70-1029 

70-1028 

SW102 

screw 

lever 

screw 

gasket 

inlet bushing 

seal 

spring 

"O"-ring 

valve assy. 

bushing 

cylinder head 

plate 

seal 

spring 

spring 


shaft 

fork 

wedge 

screw 



screw 

gasket 

spring 

lever 


50 

47 

46 

45 

42 

44 

39 

38 

37 

36 

35 

34 

33 

32 

31 

30 

29 

28 

27 

26 

56 

55 

54 

53 

48 

49 

1 

1 

6 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

2 

1 

1 

1 

1 

2 

1 

1 

1 

1 

1 

1 

1 

12

DS-A28-24 

13

DS-A28-24 

Part No. 

70-1004 

70-1111 

70-1006 

70-1101 

70-1008 

70-1102 

70-1055 

70-1081 

70-1012 

70-1085 

70-1104 

70-1089 

70-1052 

70-1088 

70-1105 

70-1016 

70-1017 

70-1018 

70-1106 

70-1108 

70-1075 

70-1103 

70-1025 

70-1026 



shaft 

fork 

wedge 

screw 

guard 

circlips 

shaft 

shaft 

shaft 

plate 


plate 

needle 


pin 

spring 

nut 

snap holder for 3/16" dia. 

moving jaw 3/16" dia. 

stationary jaw 

cylinder 

rivet 



22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

12 

11 

10 

09 

08 

07 

06 

05 

04 

03 

02 

01 

45 

44 

1 

1 

1 

1 

1 

1 

4 

2 

1 

1 

4 

2 

2 

76 

1 

1 

1 

1 

1 

1 

1 

1 

2 

1 

70-1027 

70-1028 

70-1029 

70-1078 

70-1031 

70-1032 

70-1033 

70-1110 

70-1038 

70-1039 

70-1040 

70-1041 

70-1042 

70-1043 

70-1000 

70-1001 

70-1002 

70-1003 

70-1109 

70-1107 

70-1095 

70-1099 

SW102 

screw 

lever 

spring 

lever 

screw 

gasket 

seal 

inlet bushing 

valve assy. 

"O"-ring 

valve assy. 

bushing 

cylinder head 

nut 

plate 

seal 

spring 

spring 



gasket 

screw 


43 

42 

41 

40 

39 

38 

37 

35 

32 

31 

30 

29 

28 

27 

26 

25 

24 

23 

49 

48 

46 

47 

1 

1 

1 

1 

6 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

1 

2 

2 

1 

1 

1 

1 

1 

14

Portable Pneumatic Squeezers DOTCO - Apex Tool

Create successful ePaper yourself

Delete template?

Save as template?