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PennEngineering • www.pemnet.com      

5

Instruction Manual - RIV 938S

GENERAL INFORMATION

MANUFACTURER

Rivit S.r.l. was born in 1973, it produces and distributes in Fasteners and Tools for Fixings (tools for rivets and rivet

nuts). The Company boasts much technical experience and offers a wide range of products related to fastening 

systems.

ASSISTANCE

In case you need any assistance concerning the use and the maintenance of the tool, or in case you need to order 

any spare parts, you shall contact your local authorised dealer (or Rivit S.r.l. directly) specifying the identification/

serial numbers of the tool, written on its outer casing.

CERTIFICATION AND EC MARKING

The tool is manufactured in compliance with the European Directives, which are in force when the tool itself is put 

on the market. As the tool is not included in ENCLOSURE IV of DIRECTIVE 2006/42/EC, Rivit S.r.l. issues a self-

certification to apply the EC marking.

WARRANTY

The warranty has a validity of 12 months, as of the date indicated on the invoice.

The warranty only covers replaced parts; labour is not included.

The following are not covered by warranty: standard accessories (see section 2.5) and tool damages caused by:

• transport and/or handling, user’s mistakes,

• failed servicing/maintenance, as indicated in section 7 of this manual,

• faults and/or breakages that are not attributable to tool anomalies,

• normal consumption of consumables.

The warranty is invalidated both in case of unauthorized tampering/replacements of tool components and in case of 

use of accessories, tools or consumables different to those recommended by the manufacturer, which could even 

cause injuries to the tool’s user.

Rivit S.r.l. assumes responsibilities only if the tool is originally defective, but declines all forms of responsibility if 

the user fails to follow the instructions given.

OPERATING SYSTEM

The hydro-pneumatic RIV938S tool, with oil pressure regulation, is designed to place female threaded inserts (from 

#4-40 to 1/4” / M3 to M6)  The hydro-pneumatic system and the mechanical components used inside the RIV938S, 

when compared with other riveting tools, are more reliable. There is less wear and tear of the components, con-

sequently the tool will last much longer and work better. The technical solutions adopted make the RIV938S more 

compact and lighter.

MANUAL STRUCTURE

This instruction manual must be read with particular attention by the Customer, as the correct pre-arrangement,

installation and use of the tool, are the correct basis for a good relationship between Manufacturer and Customer.

PURPOSE AND CONTENTS

The manual herein has the purpose of providing the Customer with all the information needed not only to use the 

tool correctly, but also to manage it self-sufficiently and safely. It includes information concerning technical aspects,

operation, maintenance, spare parts and safety.

Users and Qualified Technicians must read the instructions given herein thoroughly before starting to use the 
tool.

 If you have any doubts on the meaning of the instructions given, please do not hesitate to contact Rivit S.r.l. 

for further explanations.

Summary of Contents for PennEngineering RIV938S

Page 1: ...RIV938S SMALL LIGHTWEIGHT PULL TO PRESSURE TOOL FOR RIVET NUTS FROM 4 40 TO 1 4 AND M3 TO M6 OPERATING INSTRUCTIONS ...

Page 2: ... Power piston air outwardly not through the piston 3 Tie rods are now replaced by commercial screws 4 Additional unscrewing in case the user installs the wrong insert or in case it gets stuck due to an improper regulation 5 One position trigger mechanism 6 No adjustments are needed when there is a thickness change in materials 7 No damages occurs to mandrel or tie rod if operations are repeated 8 ...

Page 3: ...S PROTECTIVE WING optional accessory Protective wing Remove standard protection Install the protective wing into the standard protection housing Together with the rubber base it creates a support for the tool avoiding any contact of the surface with the metal part of the tool body ...

Page 4: ...uthorized tampering replacements of tool components and in case of use of accessories tools or consumables different to those recommended by the manufacturer which could even cause injuries to the tool s user Rivit S r l assumes responsibilities only if the tool is originally defective but declines all forms of responsibility if the user fails to follow the instructions given OPERATING SYSTEM The ...

Page 5: ...The tool is designed and manufactured in such a way that the noise level is very low The weighed equivalent continu ous acoustic pressure level A in the operator position is indeed below 80 dB A This information can allow the tool user to better evaluate the possible risks of danger TECHNICAL DATA The following table provides the technical data and features of the tool to which you must refer when...

Page 6: ...l parts different than those listed REF PART NUMBER QTY DESCRIPTION 1 4143500 1 RIV938S HYDRO PNEUMATIC TOOL FOR INSERTS IN CASE 2 3064400 1 HYDRAULIC OIL TYPE ISO VG 32 100CC 3 0369800 1 PLASTIC CASE 4 4170700 1 EMERGENCY AND STROKE REGULATION PIN 5 4154200 1 REGULATION WRENCH MM 3 0 6 4006300 1 WRENCH 12MM 7 4006400 1 WRENCH 14MM 8 4006500 1 WRENCH 18MM 1 INSTRUCTION MANUAL Hook for balancer Par...

Page 7: ...sembly SHCS Mandrel 1 4 40 4362400 MC 91251A115 50 box 6 32 4362500 IN 18856 100 box 8 32 4362600 IN 03156 100 box 10 24 IN 12557 100 box 10 32 4362700 IN 17814 100 box 1 4 20 4362800 IN 05272 100 box 1 4 28 IN 11519 100 box M3 3758400 IN 03010 200 box M4 3758500 IN 25381 200 box M5 3758600 IN 21096 200 box M6 3758700 IN 22121 200 box NOSE ASSEMBLY PART NUMBERS 1 Replacement mandrels sold in box q...

Page 8: ...ERT 4 40 REF PART NUMBER QTY DESCRIPTION 1 4362400 1 KIT 938S 4 40 1 KIT COMPOSITION 2 3 4 5 REF PART NUMBER QTY DESCRIPTION 2 3751100 1 HEAD FOR 4 40 SCREW 3 3756500 1 ADAPTER FOR 4 40 SCREW 4 MC 91251A115 50 box 1 SOCKET CAP SCREW 12 9 4 40 X 1 5 4377100 1 HEXAGONAL JOINT FOR 4 40 SCREW ...

Page 9: ...NSERT 6 32 REF PART NUMBER QTY DESCRIPTION 1 4362500 1 KIT 938S 6 32 1 KIT COMPOSITION 2 3 4 5 REF PART NUMBER QTY DESCRIPTION 2 4377700 1 HEAD FOR 6 32 SCREW 3 4377800 1 ADAPTER FOR 6 32 SCREW 4 IN 18856 100 box 1 SOCKET CAP SCREW 12 9 6 32 X 1 5 4377900 1 HEXAGONAL JOINT FOR 6 32 SCREW ...

Page 10: ...NSERT 8 32 REF PART NUMBER QTY DESCRIPTION 1 4362600 1 KIT 938S 8 32 1 KIT COMPOSITION REF PART NUMBER QTY DESCRIPTION 2 3756900 1 HEAD FOR 8 32 SCREW 3 4377400 1 ADAPTER FOR 8 32 SCREW 4 IN 03156 100 box 1 SOCKET CAP SCREW 12 9 8 32 x 1 5 4377500 1 HEXAGONAL JOINT FOR 8 32 SCREW 2 3 4 5 ...

Page 11: ...Y DESCRIPTION 1 4362700 1 KIT 938S 10 32 1 KIT COMPOSITION REF PART NUMBER QTY DESCRIPTION 2 3757700 1 HEAD FOR 10 32 SCREW 3 3757800 1 ADAPTER FOR 10 32 SCREW 4 IN 17814 100 box 1 SOCKET CAP SCREW 12 9 10 32 x 1 4 IN 12557 100 box 1 SOCKET CAP SCREW 12 9 10 24 x 1 5 3472000 1 HEXAGONAL JOINT FOR 10 32 SCREW 2 3 4 5 ...

Page 12: ...RIPTION 1 4362800 1 KIT 938S 1 4 20 1 KIT COMPOSITION REF PART NUMBER QTY DESCRIPTION 2 4378100 1 HEAD FOR 1 4 20 SCREW 3 4378200 1 RING NUT FOR 1 4 20 SCREW 4 IN 05272 100 box 1 SOCKET CAP SCREW 12 9 1 4 20 X 1 25 4 IN 11519 100 box 1 SOCKET CAP SCREW 12 9 1 4 28 X 1 25 5 3754700 1 HEXAGONAL JOINT FOR 1 4 20 SCREW 2 3 4 5 ...

Page 13: ...3 REF PART NUMBER QTY DESCRIPTION 1 3758400 1 KIT 938S M3 1 KIT COMPOSITION 2 3 4 5 REF PART NUMBER QTY DESCRIPTION 2 3751100 1 HEAD FOR M3 SCREW 3 3756500 1 ADAPTER FOR M3 SCREW 4 IN 03010 200 box 1 SOCKET CAP SCREW M3X25 12 9 UNI5931 DIN912 5 4021500 1 HEXAGONAL JOINT WITH SPRING FOR M3 SCREW ...

Page 14: ...4 REF PART NUMBER QTY DESCRIPTION 1 3758500 1 KIT 938S M4 1 KIT COMPOSITION 2 3 4 5 REF PART NUMBER QTY DESCRIPTION 2 3756900 1 HEAD FOR M4 SCREW 3 3757400 1 ADAPTER FOR M4 SCREW 4 IN 25381 200 box 1 SOCKET CAP SCREW M4X25 12 9 UNI5931 DIN912 5 3470600 1 HEXAGONAL JOINT WITH SPRING FOR M4 SCREW ...

Page 15: ...SERT M5 REF PART NUMBER QTY DESCRIPTION 1 3758600 1 KIT 938S M5 1 KIT COMPOSITION 2 3 4 5 REF PART NUMBER QTY DESCRIPTION 2 3757700 1 HEAD FOR M5 SCREW 3 3757800 1 ADAPTER FOR M5 SCREW 4 IN 21096 200 box 1 SOCKET CAP SCREW M5X25 12 9 UNI5931 DIN912 5 3472000 1 HEXAGONAL JOINT FOR M5 SCREW ...

Page 16: ...PTION 1 3758700 1 KIT 938S M6 1 KIT COMPOSITION 2 3 4 REF PART NUMBER QTY DESCRIPTION 2 3758100 1 HEAD FOR M6 SCREW 3 IN 22121 200 box 1 SOCKET CAP SCREW M6X30 12 9 UNI5931 DIN912 4 3472500 1 HEXAGONAL JOINT FOR M6 SCREW Any modifications and or additional accessories must be explicitly approved and manufactured by Rivit ...

Page 17: ...18 PennEngineering www pemnet com Instruction Manual RIV 938S SPARE PARTS ...

Page 18: ...ing 10 4151800 1 Ring nut 31 4151200 1 O ring kit 4 pieces 11 4151900 1 Protection 32 4156900 1 Kit complete with O ring 7 pieces 12 3761500 1 Motor casing 33 4153400 1 Lever pin kit 13 3761300 1 Rod 34 3235500 1 Air Connection thread 1 4 plus 1 4 gas plus aluminum washer 14 3096900 1 Ball 35 4157000 1 Kit complete with O ring 8 pieces 15 4152800 1 Air body 36 4156600 1 O ring kit 5 pieces 16 4152...

Page 19: ... 3327400 1 Rear plate 3 3763200 1 Planet wheel 10 3327000 1 Stator 4 3327500 1 Bearing 1 3326900 1 Front plate 5 3523400 1 Rotor 12 3763700 1 Spacer 6 3327100 1 Fin 13 3763600 1 Crown wheel 7 3327200 1 Roller 14 3763500 1 Snap ring ORDERING SPARE PARTS Only local authorized dealers are allowed to repair the tool Otherwise contact the ATLAS Technical As sistance Department of PennEngineering where ...

Page 20: ... hose away from sources of heat and from sharp objects Remember to remove service or adjustment keys after having making a repair and or adjustment Before disconnecting the compressed air hose from the tool ensure it is not pressurized Disconnect the air supply before cleaning or making tool repairs Air supply must be disconnected before making tool repairs and cleaning When filling with oil only ...

Page 21: ... www pemnet com Instruction Manual RIV 938S TOOL IDENTIFICATION SERIAL NUMBER Model and serial number etched into the outer casing Adhesive label indicating the tool model the name of the manufacturer and the EC marking ...

Page 22: ...tances CONNECTIONS To avoid all sorts of problems when starting the tool you are recommended to observe the following PNEUMATIC The pneumatic line is connected by a quick release coupling hose to be attached to the air connection thread size 1 4 supplied with the tool The air supply hose must be flexible and must meet the safety requirements of the tool AIR SUPPLY The air supply line must be free ...

Page 23: ...the factory in which the tool is installed They must know how to act in case of emergency where to find the individual protection means and how to use them correctly Together with the above mentioned requirements the service technicians must also have appropriate technical training MOTOR SCREWING ROTATES NONSTOP When the rotating pin 6 Part Number 4151500 is broken and you replace it the motor may...

Page 24: ...ied out with the tool disconnected from the air supply line There must be a distance of 060 1 5mm between the casing and the nut for motor screwing To replace screws Unscrew the adapter 4 from the tool Insert joint 1 Insert screw 2 Insert screw adapter 3 Screw on adaptor 4 making sure that the screw or tie rod moves freely and is not stiff Screw on head 5 ...

Page 25: ...herefore some modifications may be necessary or IMPORTANT OIL PRESSURE ADJUSTMENT When turing right screwing force increases When turn ing left force decreases WARNING When the pressure adjustment screw is completely tightened unscrewing must be done at a pressure of 100 PSI 6 5 BAR or greater WARNING Pressure force must always be regulated as per maximum thickenss When screwing and unscrewing you...

Page 26: ...TON To be used to remove an unsuitable insert INFORMATION AIR DISTRIBUTOR PRESSURE FORCE REGULATOR WARNING The unscrewing cycle may not occur when he rivet nut is not mounted on the screw tie rod the manostat isn t under pressure When the oil is not under pressure you can not unscrew ...

Page 27: ...Instruction Manual RIV 938S 1 Insert is stuck 2 Keep the trigger pressed and rotate to help loosen 3 If this does not work 4 Disconnect the air hose 5 Insert the Emergency Regulation Pin in the proper holes manually unscrewing the tool ...

Page 28: ...uit needs to be refilled with oil after a continuous use and when you notice a reduction in the tool stroke Proceed as follows see photo at right Disconnect the airline from the tool inlet Unscrew the manostat A with a wrench Remove cap together with relevant washer 27 Put the tool in horizontal position and slowly pour in the hydraulic oil ISO VG 32 type 50 until the circuit is full Screw cap bac...

Page 29: ... unscrew properly SOLUTION Tool needs oil Not enough oil in tool Check O ring B and replace if necessary When you have to work on the pressure switch 1 Remove air 2 Loosen the oil cap 27 carefully keeping gasket C from coming out If replacing use guide 1 If after reassembling all parts of the pressure switch and tool does not work properly O rings O1 O2 O3 have not been correctly assembled O ring ...

Page 30: ...his case it will have to be shortened by a few tenths to obtain the closure of the ball 14 part number 3096900 Unlike the situation above the shaft is too short and it has to be replaced with a new one fitting it without end float witht he air on in order to obtain the closure of the ball 14 part number 3096900 When assembling the quick kit part number 4176900 with air off make sure to create an a...

Page 31: ... at the Customer s full disposal for all enquiries When making inquiries the customer is requested to be absolutely clear and to always refer to this Manual DISMANTLING INSTRUCTIONS DISMANTLING INSTRUCTIONS When disposing the tool you need to separate the plastic parts which are to be disposed of in compliance with current Regulations As for the bulk metal part of the tool simply split up the stee...

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