Arconic MARSON MP-4V User manual

This newly designed heavy-duty air/hydraulic riveter is

ergonomically designed with the professional in mind. The

lightweight 3.7 lbs. well balanced MP-4V includes a Vacuum system

and is designed to maximize a 1” stroke and 3,420 lbs. of pulling

force with a 3 jaw setup that gets the job done. The air supply can be

connected directly or you can use the supplied swivel air connector

with the attached hose for operator convenience. Each tool is

supplied with nosepieces to set 5/32”- 1/4” rivets in all alloys. A 1/4"

Monobolt nosepiece is included in addition to adjustment service

wrenches, fluid applicator, spare jaws and an air off/on valve. The

adjustable Vacuum System control knob located on the side of the

tool allows you to control the force of the air needed to hold the rivet

in place or you may operate with the vacuum system turned off.

Recommended air pressure is 85-95 PSI.

MP-4V Heavy Duty Riveter / 39048

LA-534

07/2014

1925 N MacArthur Dr.

Suite 200

Tracy, CA 95376

Arconic

Fastening

Systems and Rings

AIR FEED

Use only compressed air. Check airline for damage from humidity &

contaminants. In order to protect the tool from premature wear, we

recommend the use of an in line moisture filter and air regulator.

Air inlet thread connection size on the tool is ¼” NPT.

WARNING:

Do not use air supply greater than recommended 85-95 PSI

or tool may be damaged or burst.



1. Connect air supply then switch ON/OFF valve

to ON position

2. To turn on and adjust vacuum system rotate silver

knob on side of tool and turn it clockwise until

desired amount of vacuum is obtained to hold rivet

in place and eject spent mandrel into the collection

cup. If you don't want to use the vacuum system

rotate the silver knob counter-clockwise to shut it

off. The tool will still function but must be tilted

backwards to allow spent mandrel to fail into

collection cup.

ADDITION OF HYDRAULIC FLUID

1. Disconnect air supply to tool and switch ON/OFF valve to

OFF position.

2. Remove seal screw and seal (see Fig. 3)

3. Screw the priming pump of filled oil into the bleed screw

hole. Actuate the priming pump by pressing down and

releasing several times until resistance is felt. (Fig. 4)

4. Remove the priming pump and the excessive oil will flow

out. Wipe away and clean out the excessive oil and replace

the seal and screw.

IMPORTANT: Use only Anti-Foam Hydraulic Fluid

WARNING:

ALWAYS WEAR SAFETY GLASSES

WHEN OPERATING AND PERFORMING MAINTENANCE ON TOOL

Your tool is now ready to work. Insert rivet mandrel into nosepiece. Insert rivet into

predrilled hole in application and pull trigger button and hold until rivet sets then

release the trigger. A second pull may be required.

CLEANING & CHANGING OF JAWS

With use, the jaws of the tool may become dirty or worn. This will cause slipping of

the rivet mandrel & and improper setting of the rivet. To clean the jaws follow this

procedure.

1. Disconnect air supply.

2. Use a suitable wrench, unscrew frame head and remove.

3. Using a pair of wrenches, disassemble front jaw case from rear jaw case.

DO NOT MOVE rear jaw case as this will affect tool operation.

4. To clean jaws, use a stiff dry wire brush.

5. If excessive wear is apparent, replace with new jaws.

6. Reassemble the jaw case assembly.

LIMITED TOOL WARRANTY

This warranty applies to the purchaser of the tool for original use only.

All other warranties, whether expressed or implied, including any warranties of merchantability or fitness

for purpose are hereby excluded.

CHANGING NOSEPIECES

1. After selecting the correct size nosepiece for the rivet being used

Connect tool to air supply and pull trigger and hold trigger button.

2. Using wrench (supplied), unscrew nosepiece from frame head &

replace with proper size nosepiece. Tighten down with wrench. DO

NOT OVERTIGHTEN. Release trigger.

Arconic Fastening Systems - Marson division warrants that this tool will be free from defects in material

and workmanship under normal service and for ninety (90) days from the date of purchase.

Should this tool fail during this ninety (90) day period, and no unauthorized repairs have been made, return

the tool freight prepaid to the factory for free of charge replacement of any part or parts found by Arconic

Fastening Systems- Marson division to be defective due to faulty material or workmanship. This represents

the sole obligation of Arconic Fastening Systems - Marson under this warranty. In no event shall Arconic

Fastening Systems - Marson division be liable for any consequential or special damages arising from the

purchase or use of this tool. You may have other rights which vary from state to state.

IF further maintenance is beyond the scope of this manual and the tool fails to function properly, contact

the factory or return it to the factory for service.

Contact our Tool Repair Center at 209-839-3032 for further information.

MP-4V BREAKDOWN & PARTS LSIT

Ref. # AFS Part # Description Ref. # AFS Part # Description

1M95300 5/32" Nosepiece 43 M95345 Trigger valve

1M95301 3/16" Nosepiece 44 M95346 On/Off base

1M95302 1/4" Nosepiece (Standard) 45 M95347 O-Ring 4x1

1M95303 1/4" Nosepiece(Monobolt) 46 M95348 Air interface

2M95304 O-Ring 7x1 47 M95349 Tie ring

3M95305 Nosepiece casing 48 M95350 Air tube

4M95306 O-Ring 18x2 49 M95351 Regulator button

5M95307 Jaw housing 50 M95352 Retaining screw 3x3

6M95308 Jaws (3pcs) 51 M95353 Vacuum valve

7M95309 Pusher 52 M95347 O-Ring 4x1

8M95310 Washer 53 M95355 Tapping screw 3x10

9M95311 Jaw pusher spring 54 M95356 Air valve body

10 M95312 Lock ring 55 M95357 Air valve ring

11 M95313 Housing 56 M95358 O-Ring 9.5x1.5

12 M95314 Polyurethane ring 12x2 57 M95359 Air valve base

13 M95315 Set nut 58 M95360 Subordinate tube

14 M95316 Polyurethane ring 14.3x2 59 M95361 O-Ring 11.5x1.5

15 M95317 O-Ring 13x1.5 60 M95362 Connecting base

16 M95318 Vacuum sleeve 61 M95363 O-Ring 9x2.4

17 M95319 Seal plastic housing 62 M95364 On/Off assembly

18 M95320 Sealing ring 20x13.5x3.5 63 M95365 Valve rod

19 M95321 Head assembly 64 M95366 Screw plug

20 M95322 U-Ring 14x22x6.3 65 M95367 Silencer

21 M95323 Retaining nut 66 M95368 Cylinder cover

22 M95324 O-Ring 26.7x1.78 67 M95369 O-Ring 81.7x1.9

23 M95325 U-Ring 30x22x6 68 M95370 Bolt

24 M95326 Principal Axis Unit 69 M95371 Lock nut

25A M95327A Spring 70 M95372 Buffer

26 M95328 O-Ring 26.3x1.85 71 M95373 U-Ring 8x14x6

27 M95329 U-Ring 8x14.2x5 72 M95374 O-Ring 11.5x1.5

28A M95330A End cap 73 M95375 Air tube piston

30A M95332A Stem collector adaptor 74 M95376 Piston ring

32 M95334 O-Ring 44x1.5 75 M95377 Transfer tube

33 M95335 Stem collector outer 76 M95378 Piston rod

34 M95336 Stem Collector body 77 M95379 Cylinder piston

35 M95337 Retaining nut 78 M95380 O-Ring 89.6x5.7

36 M95338 Silencer 79 M95381 Bolt 6x10

37 M95339 Stem collector end cap 80A M95382A O-Ring 7.8x1.9

38 M95340 Silence 81 M95383 Cylinder

39 M95341 Silencer cap 82 M95384 Base cover

40 M95342 Handle (left) 83 M95385 O-Ring 5.7x1

41 M95343 Handle (right) 84 M95386 Seal screw

42 M95344 Trigger 85 M95387 Hook

M95290 Oil Priming Syringe

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