7
ZCT838CE Rev. A (05/21)
Functional Description
H
A
B
D
E
F
C
Figure 1: CT838/CTQ838
A – Anvil , 3/8”
B – LED Lights
C – Fuel Gauge
D – Forward/Reverse Bar
E – Variable Speed Trigger
F – Release Button
G – Battery Pack
H – 1/4” Quick Disconnect (CTQ838)
G
A
B
C
D
E
F
Figure 2: CT861/CTQ861
A – Anvil , 3/8”
B – LED Lights
C – Fuel Gauge
D – Variable Speed Toggle Forward/Reverse
Switch
E – Release Button
F – Battery Pack
G – 1/4” Quick Disconnect (CTQ861)
Specifications
Impact Wrench Specications
Motor Voltage ........................................14.4 VDC
Drive .....................................................................
CT838/CT861 ..........................3/8” Square Drive
CTQ838/CTQ861 .............. 1/4” Quick Disconnect
Output Torque .......................................................
CT838/CT861 ................... 150 ft. lb. (203.4 N•m)
CTQ838/CTQ861 .............. 100 ft. lb. (135.6 N•m)
Bolt Breakaway Torque ..........................................
CT838/CT861 ...................... 225 ft. lb. (305 N•m)
Free Speed ........................................... 2500 RPM
No Load Current ............................................3.0 A
Weight with Battery Pack .............2.7 lbs. (1.2 kg)
Length ........................................6.8” (172.7 mm)
Height .........................................8.0” (203.2 mm)
Width ............................................2.0” (50.8 mm)
Operating Temperature
................................. -4°F(-20°C) to 140°F(60°C)
Storage Temperature
................................. -4°F(-20°C) to 140°F(60°C)
Noise* (Tested in accordance with ISO 15744)
CT838/CT861/CTQ838/CTQ861 ..........................
Sound Pressure Level (A) ...................100.13 dB
Uncertainty, K ...........................................3.0 dB
Sound Power Level (A) .......................111.13 dB
Uncertainty, K ...........................................3.0 dB
Vibration* (Tested in accordance with ISO 28927)
CT838/CT861/CTQ838/CTQ861 ..........................
Vibration Level ...................................11.87 m/s
2
Uncertainty, K ........................................1.5 m/s
2
*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.
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