RIV938S SMALL, LIGHTWEIGHT PULL-TO-PRESSURE TOOL FOR RIVET NUTS FROM #4-40 to 1/4” and M3 TO M6 Operating Instructions
Instruction Manual - RIV 938S 2 PennEngineering • www.pemnet.
Instruction Manual - RIV 938S NOTE: THE RIV938S TOOL COMES WITHOUT NOSE ASSEMBLY KITS. NOSE ASSEMBLY KITS HAVE TO BE ORDERED SEPARATELY ACCORDING TO THE USER NEEDS. 1. Air piston return (without spring). 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.
Instruction Manual - RIV 938S RIV 938 AND RIV938S 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. 4 PennEngineering • www.pemnet.
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.
Instruction Manual - RIV 938S RECEIVERS The manual herein has been written for both the operators and the technicians enabled to service the tool. Operators must not carry out jobs reserved to service and/or qualified technicians. Rivit S.r.l. is not liable for any damage deriving from the failed observance of this rule.
Instruction Manual - RIV 938S NOSE ASSEMBLIES AND STANDARD ACCESSORIES The nose assemblies stated hereafter refers to standard tools. Any special tool could consequently require special parts, different than those listed. REF.
Instruction Manual - RIV 938S OPTIONAL TOOLING For Blind Threaded Insert Installation. NOSE ASSEMBLY PART NUMBERS Thread Size Part No. For Complete Insert Nose Assembly Part No.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT #4-40 1 REF. 1 PART NUMBER 4362400 QTY 1 DESCRIPTION KIT 938S #4-40 KIT COMPOSITION 3 4 5 2 REF. 2 3 4 5 PART NUMBER 3751100 3756500 MC-91251A115 (50/box) 4377100 QTY 1 1 1 1 DESCRIPTION HEAD FOR #4-40 SCREW ADAPTER FOR #4-40 SCREW SOCKET CAP SCREW 12.9 #4-40 X 1” HEXAGONAL JOINT FOR #4-40 SCREW PennEngineering • www.pemnet.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT #6-32 1 REF. 1 PART NUMBER 4362500 QTY 1 DESCRIPTION KIT 938S #6-32 KIT COMPOSITION 3 4 2 REF. 2 3 4 5 10 PART NUMBER 4377700 4377800 IN-18856 (100/box) 4377900 QTY 1 1 1 1 PennEngineering • www.pemnet.com DESCRIPTION HEAD FOR #6-32 SCREW ADAPTER FOR #6-32 SCREW SOCKET CAP SCREW 12.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT #8-32 1 REF. 1 PART NUMBER 4362600 QTY 1 DESCRIPTION KIT 938S #8-32 KIT COMPOSITION 3 4 5 2 REF. 2 3 4 5 PART NUMBER 3756900 4377400 IN-03156 (100/box) 4377500 QTY 1 1 1 1 DESCRIPTION HEAD FOR #8-32 SCREW ADAPTER FOR #8-32 SCREW SOCKET CAP SCREW 12.9 #8-32 x 1” HEXAGONAL JOINT FOR #8-32 SCREW PennEngineering • www.pemnet.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT #10-32 1 REF. 1 PART NUMBER 4362700 QTY 1 DESCRIPTION KIT 938S #10-32 KIT COMPOSITION 3 4 2 REF. 2 3 4 4 5 12 PART NUMBER 3757700 3757800 IN-17814 (100/box) IN-12557 (100/box) 3472000 QTY 1 1 1 1 1 PennEngineering • www.pemnet.com DESCRIPTION HEAD FOR #10-32 SCREW ADAPTER FOR #10-32 SCREW SOCKET CAP SCREW 12.9 #10-32 x 1” SOCKET CAP SCREW 12.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT 1/4-20 1 REF. 1 PART NUMBER 4362800 QTY 1 DESCRIPTION KIT 938S 1/4-20 KIT COMPOSITION 3 2 REF. 2 3 4 4 5 PART NUMBER 4378100 4378200 IN-05272 (100/box) IN-11519 (100/box) 3754700 QTY 1 1 1 1 1 4 5 DESCRIPTION HEAD FOR 1/4-20 SCREW RING NUT FOR 1/4-20 SCREW SOCKET CAP SCREW 12.9 1/4-20 X 1.25” SOCKET CAP SCREW 12.9 1/4-28 X 1.25” HEXAGONAL JOINT FOR 1/4-20 SCREW PennEngineering • www.pemnet.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT M3 1 REF. 1 PART NUMBER 3758400 QTY 1 DESCRIPTION KIT 938S M3 KIT COMPOSITION 3 4 5 2 REF. 2 3 4 5 14 PART NUMBER 3751100 3756500 IN-03010 (200/box) 4021500 QTY 1 1 1 1 PennEngineering • www.pemnet.com DESCRIPTION HEAD FOR M3 SCREW ADAPTER FOR M3 SCREW SOCKET CAP SCREW M3X25 12.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT M4 1 REF. 1 PART NUMBER 3758500 QTY 1 DESCRIPTION KIT 938S M4 KIT COMPOSITION 3 4 5 2 REF. 2 3 4 5 PART NUMBER 3756900 3757400 IN-25381 (200/box) 3470600 QTY 1 1 1 1 DESCRIPTION HEAD FOR M4 SCREW ADAPTER FOR M4 SCREW SOCKET CAP SCREW M4X25 12.9 UNI5931/DIN912 HEXAGONAL JOINT WITH SPRING FOR M4 SCREW PennEngineering • www.pemnet.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT M5 1 REF. 1 PART NUMBER 3758600 QTY 1 DESCRIPTION KIT 938S M5 KIT COMPOSITION 3 4 5 2 REF. 2 3 4 5 16 PART NUMBER 3757700 3757800 IN-21096 (200/box) 3472000 QTY 1 1 1 1 PennEngineering • www.pemnet.com DESCRIPTION HEAD FOR M5 SCREW ADAPTER FOR M5 SCREW SOCKET CAP SCREW M5X25 12.
Instruction Manual - RIV 938S KIT FOR BLIND THREADED INSERT M6 1 REF. 1 PART NUMBER 3758700 QTY 1 DESCRIPTION KIT 938S M6 KIT COMPOSITION 3 4 2 REF. 2 3 4 PART NUMBER 3758100 IN-22121 (200/box) 3472500 QTY 1 1 1 DESCRIPTION HEAD FOR M6 SCREW SOCKET CAP SCREW M6X30 12.9 UNI5931/DIN912 HEXAGONAL JOINT FOR M6 SCREW Any modifications and/or additional accessories must be explicitly approved and manufactured by Rivit. PennEngineering • www.pemnet.
Instruction Manual - RIV 938S SPARE PARTS 18 PennEngineering • www.pemnet.
Instruction Manual - RIV 938S REF. PART NUMBER QTY 1 4153100 1 2 3759000 1 3 3068400 5 3757300 DESCRIPTION REF.
Instruction Manual - RIV 938S MOTOR UNIT SPARE PARTS (KIT 20) Part number 3761000. REF. PART NUMBER QTY 1 3763400 1 DESCRIPTION Planet wheel holder REF.
Instruction Manual - RIV 938S GENERAL WARNINGS The operator must read carefully the information given in the present manual, especially with regard to the safety precautions listed in this chapter. The operator must also observe the warnings listed below: • • • • • • • • • • • • • • • • • • • • The tool shall be used exclusively by trained personnel. The tool and the work area shall be kept clean and tidy. The tool shall be rested upright on the rubber base on a flat surface to prevent it from falling.
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. 22 PennEngineering • www.pemnet.
Instruction Manual - RIV 938S HANDLING The tool can be hand carried. It is recommended to store the tool in its case after using it. The tool can be transported safely if is has been correctly put away in its case. Damages to the tool caused during transport and/or handling are not covered by WARRANTY. Repairs or replacements of damaged parts are at Customer’s charge.
Instruction Manual - RIV 938S OPERATORS The tool is designed to be used by one operator only. Tool operators must satisfy the requirements stated hereafter (or they must be informed and trained accordingly). They must be aware of the manual herein and of all information relevant to safety: • They must have some general and technical education, to a sufficient level to be able to understand the manual and to interpret the drawings and the diagrams correctly.
Instruction Manual - RIV 938S TOOL PREPARATION AND SCREW REPLACEMENT Warning: Tool setting and screw replacement must be carried 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.
Instruction Manual - RIV 938S Yellow White Orange WARNING!!! Pressure (force) must always be regulated as per maximum thickenss When screwing and unscrewing, you will see three rings (white, yellow, and orange). OIL (FORCE) PRESSURE REGULATION SETTINGS M3 / #4-40 M4 / #8-32 M5 / #10-32 M6 / 1/4-20 - White Yellow Yellow Orange NOTE: These settings are general guidelines to the operator. Inserts are not uniform as hardness and therefore some modifications may be necessary (+ or -).
Instruction Manual - RIV 938S INFORMATION EMERGENCY REVERSE BUTTON To be used to remove an unsuitable insert 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. PennEngineering • www.pemnet.
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. 28 PennEngineering • www.pemnet.
Instruction Manual - RIV 938S MAINTENANCE Maintenance operations must be carried out with the tool stopped and disconnected from the pneumatic supply line. Warnings: • The tool maintenance instructions must be followed carefully. • To ensure safety and perfect tool efficiency, it is recommended to use exclusively ORIGINAL spare parts. CLEANING It is a good rule to completely clean and grease the tool on a periodic basis (depending on the type and frequency of use).
Instruction Manual - RIV 938S FAULT DIAGNOSIS PROBLEM SOLUTION No traction Tool needs oil. After installing rivet nut, tool does not unscrew properly 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).
Instruction Manual - RIV 938S PROBLEM SOLUTION Air leaks from muffler Check the two O-rings (O4) and O-ring (21 part number 3235600) which could be worn or broken Motor rotates continuously When the rotating pin (6 part number 4151500) is broken and you replace it, it may happen that the motor rotates continuously, which means that the shaft (13 part number 3761300) is too long; in this case, it will have to be shortened by a few tenths to obtain the closure of the ball (14 part number 3096900).
Instruction Manual - RIV 938S FAULT DIAGNOSIS AND REPAIRS REPAIRS To ensure the operational efficiency and safety of the tool, all repair jobs shall be carried out exclusively by the local authorized dealer or by the Technical Assistance Service of PennEngineering. REQUESTING ASSISTANCE For any information concerning Use, Maintenance, Installation, Repair etc., PennEngineering is at the Customer’s full disposal for all enquiries.
