Snap-On PT338 Serie Manual De Instrucciones página 4

Specifications
Square Drive Size
PT338 ..........................................................3/8"
PT350 ..........................................................1/2"
Torque
Bolt Breakaway Torque ........................................
3/8" Drive ................... 700 lbs. ft. (950 N•m)
1/2" Drive ................. 775 lbs. ft. (1017 N•m)
Counterclockwise (R) ....... 500 lbs. ft. (678 N•m)
Clockwise (F) .................... 350 lbs. ft. (475 N•m)
All torque values obtained using a 1-1/2" hex nut.
Recommended Air Pressure
................... 90 psig (6.2 bar, 620 kPa), maximum
Air Consumption, Working
........................................ 3.17 cfm (22.60 SCFM)
RPM, Free Speed ......................................... 8000
Blows per Minute ..........................................1440
Air Inlet Thread Size ......................... 1/4"–18 NPT
Air Supply Hose Size ........... 3/8" (9.5 mm) ID min
Dimensions
Height ..........................................7.5" (19.1 cm)
Length
PT338 .................................4.80" (12.2 cm)
PT350 .................................4.95" (12.6 cm)
PT338L ...............................7.80" (19.8 cm)
PT350L ...............................7.95" (20.2 cm)
Width .............................................2.9" (7.4 cm)
Weight
PT338/PT350 ....................... 3.0 lbs (1.4 kg)
PT338L/PT350L ................... 3.2 lbs (1.5 kg)
Noise* (Tested in accordance with ISO 15744)
Sound Pressure Level (A) ................ 97.5 dB
Uncertainty, K .................................... 3.0 dB
Sound Power Level (A) ...................109.1 dB
Uncertainty, K .................................... 3.0 dB
Vibration* (Tested in accordance with ISO 28927)
Vibration Level ......................... .. 10.80 m/s
Uncertainty, K ................................1.11 m/s
*These declared values were obtained by
laboratory type testing with the stated standards
and are not adequate for use in risk assessments.
Values measured in individual work places may be
higher. Values and risk of harm experienced by an
individual user are unique and depend upon the
environment and manner in which the user works,
the work piece and the workstation design, as well
as upon the exposure time and the physical
condition of the user.
Snap-on disclaims liability for the consequences of
using the declared values, instead of values
reflecting the actual exposure determined in an
individual risk assessment in a work place situation
over which we have no control.
ZPT338CE Rev. C
Applications
The Snap-on PT338/PT350 Impact Wrench is ideal for a
wide variety of fastener turning jobs in both automotive
and industrial fields. When used with Snap-on impact
sockets, they provide power and speed for greater job
efficiency and less operator fatigue. Applications include
assembly line operations, removal of rusted-on nuts and
bolts and many other specialized uses.
Air Supply
Air tools operate best on clean, moisture-free, well-
lubricated air at a constant pressure of 90 psig (6.2 bar,
620 kPa) maximum.
A – Receiver Tank, Minimum 40 Gallon
(151.5 liters)
B – Compressor, Sufficient Capacity
C – Drain, Daily
D – Pipe and Fittings, Minimum 1/2"
E – Top Air Intake
F – Shut Off Valve, Easily Reached
G – Filter
H – Air Regulator, Set at Working Pressure
I – Lubricator
J – Air Tool Connection
K – Low Spot, Water Trap
L – Drain, Daily
Piping System
2
2
The piping system should be large enough to avoid an
excessive pressure drop under maximum flow
conditions. All pipe fittings and hose outlets should be
1/2" and should be arranged so there are no low spots
that collect water which cannot be drained daily. Do not
use an air hose less than 3/8" ID or one that is too long
because pressure drop under maximum flow conditions
could reduce performance.
• Accessories are available for air tight connections.
Air Compressor
The air compressor should have sufficient capacity to
deliver CFM at 90 psig (6.2 bar, 620 kPa) at each outlet
while the tool is running. The receiver tank should have
sufficient capacity to provide surge balance for each air
tool.
4
Figure 1: Air Supply
(01/21)