Marson 39225 Operation manual

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This is our most powerful air/hydraulic rivet nut setting tool. This spin-pull
tool automatically threads the fastener onto the mandrel.
Pressing and holding the trigger in position will set the Rivet Nut and
reverse itself out automatically in one operation. Located at the bottom of
the tool is a totally adjustable stroke length rotating knob to suit any grip
range. A swivel air inlet is also included for increased mobility. No
complicated tear down is required to adjust the stroke or to change thread
sizes… both adjustments and changes are done outside the tool. The 39225
handles Rivet-Nut thread sizes 6-32” through ½-13” and the 39226 handles
Rivet-Nut thread sizes 4mm through 12mm.
Weight: 6 lbs.
CAUTION:
ALWAYS WEAR SAFETY GLASSES WHEN OPERATING TOOL
39225 (160-SP)
39226 (160M-SP Metric)
Rivet Nut setting Tool (Spin /Pull)
Instructions & Parts List
160-SPM (39226) Metric
44 Campanelli Parkway
Stoughton, MA 02072
Customer Service: 800-343-3633
www.alcoafasteningsystems.com

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Air Feed
Use only compressed air. Check airline for damage from humidity & contaminants.
In order to protect the tool from premature wear it is recommended a filter separator &
regulator assembly be used. A lubricator is not necessary but a water separator is
highly recommended.
Normal working pressure is 85-95 PSI. Air connection thread size ¼”- NPT.
WARNING: Do not use air supply greater than recommended or tool
may be damaged or burst. Do not use oxygen, combustible gases or
bottled gases as a source for this tool. Gases could cause the tool to
explode.
CAUTION:
ALWAYS WEAR SAFETY GLASSES WHEN OPERATING TOOL
Main Components
A: Mandrel
B: Nosepiece
C: Nosepiece Lock Nut
D: Trigger
E: Air Connection (1/4-20 NPT female)
F: Pressure control Valve
G: Protective Bottom
H: Pneumatic Motor
I: Fluid Plug
L: Balancer Connection
M: Stroke Adjusting Knob
N: Stroke Indicator
O: Head
P: Forced Unscrewing Rod
J

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MAINTENANCE
ADDITION OF HYDRAULIC FLUID
The Hydraulic oil should be topped off after a long period of usage or when there is a power loss
of the tool. Put the tool in a vertical position rotating the knob (M) towards the plus sign + up to
the end of the stroke, and remove plug (I) by using a 4mm Allen wrench (supplied). After
removal of plug (I) check the oil level in order to avoid overflowing. Next screw the oil container
(S) supplied into the oil inlet hole until it is seated. While keeping the tool in the vertical position
connect the air line and push button (D) and then cycle the tool several times until air bubbles in
the oil container (S) stop appearing in the oil container (S). This indicates that tool is filled of oil
and is ready for use. Disconnect the air line and unscrew the oil container (S) from tool and
replace plug (I) first checking to be sure the washer on plug is in position and not damaged.
IMPORTANT: Make sure plug (I) is
tightened at a torque corresponding to
min. of 3.6 ft-lb and a max. of 5.9 ft-lb

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Changing Mandrel and Nosepiece
The tool is supplied with mandrels (A) and nosepieces (B) for setting Rivet Nuts. Depending on the
Rivet-Nut thread size it may be necessary to change mandrel (A) and nosepiece (B). This can be done
by loosening nosepiece lock nut (C) using a 22mm wrench and remove nosepiece (B) and spacer (Q) if it ranges
from 6-32”–½-13”or M4 –M12 see f7. With the same wrench (22mm) remove the head (O) see f8. Using two
20mm wrenches remove ring nut (K) and remove the mandrel (A) see f9. To prevent damage it is critical that
you follow procedure in f9.
After replacing mandrel (A) with the correct thread size assemble the ring nut (K) and follow the above
procedure in reverse order. Make sure that component (R) is the correct one.

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Adjusting Stroke Length (Preliminary Operations)
Before using the tool and after each change of thread size, the stroke should be adjusted according to the
dimensions, type of insert and thickness of material rivet nut is to be installed in. Before setting rotation of knob
(M) in the direction indicated either decreases (-) or increases (+) the clamping force (h).
3 Simple steps to set Rivet-Nut

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Working Problem
When it is necessary to unscrew mandrel from the Rivet nut remove push rod (P) from it position (1).
See diagram below

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Parts List

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