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mg725 question

xstubsx

Well-known member
Joined
Aug 30, 2009
Messages
83
Location
Cantley, Quebec, Canada
i have an mg725. and i recently noticed that when im connected to an air line. theres air comming out from the exhaust. is it normal?. maybe to much air in the line? sign of a gasket going out?
 
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mrshaun

Well-known member
Joined
Sep 10, 2009
Messages
4,033
Location
Killeen - Fort Hood
here is what I got

No, not normal-

Sounds like a leakage problem between the tip valve and the valve seat-

There are multiple interacts between these two parts that could cause this; best bet is replace both the tip valve and valve seat-

(it is possible the valve seat is fine, but is not properly seated too)
 

mrshaun

Well-known member
Joined
Sep 10, 2009
Messages
4,033
Location
Killeen - Fort Hood
here are just a few of the parts
23 FAR72A306A 1 Plunger
06 IM5100-13 2 Engagement Dog
07 ME11A3J 1 Front Motor Bearing
24 ME1A168C 1 Pawl Spring
34 ME1A226 1 Spring
21 ME3R6A 4 Screw, Cap, #10-32
08 ME6A12 1 Nose Seal
01 ME6A29 1 Seal, Oil
36 ME6F4A 1 Inlet Bushing
03A ME7A97 1 Retaining Ring
03B ME7B3 1 O-Ring, Regulator
22 ME7B52 2 O-Ring
36A ME7B68 1 O-Ring
09 ME7B91 3 O-Ring
18 ME11A45 1 Ball Bearing-Motor Rear
13 IM510030A-8V 1 Vane Set
30 MG31-200 1 Trigger and Stem Assembly
03 XT7100-12R 1 Anvil Assembly
– ME11C9 1 Bushing, Nose
15 ME2A153 1 Pin, Alignment
– ME2C79 1 Pin, Spring
– ME1A238 1 Spring
– IM5100P26 1 Pin
02 MG725-1R 1 RPR, Housing
02A MG725-1 1 Housing
02A1 MG725-29 1 Grip, Top
04 MG725-14 2 Pin
05 MG725-11 1 Frame
10 MG725-4 1 Plate, End, Front
11 MG725-19 1 Plate, Wear, Front
12 MG725-6 1 Rotor
14 MG725-7 1 Cylinder
16 MG725-18 1 Plate, Wear, Rear
17 MG725-5 1 Plate, End, Rear
19 MG725-3 1 Gasket
20 MG725-2R 1 RPR, Plate, End
20A MG725-2 1 Plate, End
25 MG725-9 1 Valve, Reverse
26 MG725-10 1 Sleeve, Stop
28 MG725-16 1 Knob, Regulator
31 MG725-22 1 Seat, Valve
– MG725MKIT 1 Kit, Muffler
– ME11D13 1 Bushing, Trigger
20B SS2919 1 Label, Warning
29 ME3C11 1 Screw, FH, 1/4-20
27 ME7B113 1 O-Ring
32 MG725-21 1 Cup, Valve
33 MG725-20 1 Valve, Trigger
35 MG725-28 1 Grip, Cushion
 
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psychoclaw84

Well-known member
Joined
May 14, 2009
Messages
142
Location
Valley of the Sun
I had the same problem, the problem was resolved by pulling out the trigger after each use. However this should not be a issue that needs to be dealt with.

Spoke to my Snap On dealer and he said the impact needed to sent out for repair (Las Vegas). The fix was having the impact rebuilt and replacing the trigger mechanism. The best part is it was covered by the warranty:thumbup: I had to use my Mac Tools AW434M in the meantime.

The MG725 has been working fine ever since.

My suggestion is to find out if it is covered under warranty and send it in. Even it is not covered, you will know specifically what is wrong and you can order the parts yourself and repair for a minimal cost.

Here is a post on a Pleasant Snap On Experience: http://www.garagejournal.com/forum/showthread.php?t=50417
 
OP
X

xstubsx

Well-known member
Joined
Aug 30, 2009
Messages
83
Location
Cantley, Quebec, Canada
ya its still under warrenty. i work at 2 garages. and i noticed at one. theres more air that comes out then the other. i mean it works fine and all. a co worker made me notice it was leaking air fromt he exhaust. ill have to talk to my dealer bout it. oh. ya well at one garage. i just started working there a few weeks ago. and found a bottle of air tool oil. so i put some in. and it puffed out white form the exhaust like a blown head gasket would. and there was fluid coming out from the trigger. exhaust. intake. forward/reverse. so i let it run and it stopped any way it still works. turned out that they put power steering fluid in there guns. so i was thinking maybe that could of been a cause?.
 
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