Instruction Manual
2
3.0 INSTRUCTIONS
Read and understand these operating instructions
before using the Torque Multiplier.
NOTE: DO NOT USE AN IMPACT WRENCH ON THE TORQUE
MULTIPLIER. DAMAGE TO TOOL WILL OCCUR.
1. When using a POWER driven input, lock selector pawl in
neutral position using the neutral positioning set screw (Fig.
3 Item 2).
2. When positioning the torque multiplier, be sure socket
attached to the output is positioned so that the reaction plate
is at a right angle to the fastener. Torque reaction creates a
rotational force in the opposite direction from which input
force is applied. See Application Information section 10.0 for
additional torque multiplier reaction information.
3. DO NOT apply more torque than the application can
withstand. Breakout torque can be greater than input torque.
Allow a minimum of 50% additional tool capacity for breakout
torque. Damaged and corroded fasteners can require even
greater breakout torque capacity.
4. Monitor input torque using a torque wrench. If torque
multiplier is used without a torque wrench, remember that
output torque is signifi cantly greater than the input torque.
5. Increase Torque Multiplier life. Maintain the shortest possible
couple distance between the Torque Multiplier Output (Fig.
6) and the fastener being addressed. Maintain the longest
distance possible between the Torque Multiplier and reaction
point as possible (Fig. 5).
6. Protect your warranty, use Enerpac approved output square
drives and replacement parts only.
4.0 SPECIFICATION TABLES
Model Numbers E290PLUS E291 E391 E392 E393
Output Capacity, Ft-Lb (Nm) 750 (1.020) 1,000 (1.358) 1,200 (1.627) 2,200 (2.983) 3,200 (4.340)
Input Capacity, Ft-Lb (Nm) 250 (339) 333 (451) 200 (271) 162 (220) 173 (234)
Torque Ratio 3:1 3:1 6:1 13.6:1 18.5:1
Accuracy ±5% of reading from 20% to 100% of full-scale rating
Output Drive Male Square Size - Inch (mm) .75 (19) .75 (19) .75 (19) 1 (25.4) 1 (25.4)
Input Drive Female Square Size - Inch (mm) .5 (13) .5 (13) .5 (13) .5 (13) .5 (13)
Overall Dimensions
Inch (mm) (see Fig. 2)
Length A 8.53 (217) 17.06 (443) 19.56 (497) 19.6 (498) 19.6 (498)
Gearbox Ø B 2.81 (71) 2.81 (71) 3.94 (100) 4.06 (103) 4.06 (103)
Height C 3.25 (83) 3.25 (83) 4.00 (102) 5.75 (146) 6.5 (165)
Net Weight Lb. (kg) 4 (1,8) 5.5 (2,5) 9.1 (4,1) 15.2 (6,9) 18.3 (8,3)
Planetary Gearing Stages One One One Two Two
Needle Bearings – – Yes Yes Yes
Angle-of-turn Protractor No No Yes 5° incr Yes 5° incr Yes 5° incr
Torque Conversion Chart No No Yes Yes Yes
Shearable Replaceable Output Drive No No Yes Yes Yes
Model Numbers E492 E493 E494 E495
Output Capacity, Ft-Lb (Nm) 2,200 (2.983) 3,200 (4.339) 5,000 (6.779) 8,000 (10.846)
Input Capacity, Ft-Lb (Nm) 162 (220) 173 (235) 189 (256) 154 (209)
Torque Ratio 13.6:1 18.5:1 26.5:1 52.1
Accuracy ±5% of reading from 20% to 100% of full-scale rating
Output Drive Male Square Size - Inch (mm) 1 (25.4) 1 (25.4) 1.5 (38) 1.5 (38)
Input Drive Female Square Size - Inch (mm) 1/2 (13) 1/2 (13) 1/2 (13) 1/2 (13)
Overall Dimensions
Inch (mm) (see Fig. 2)
Length A 14.0 (356) 14.0 (356) 14.88 (378) 15.2 (387)
Gearbox Ø B 4.88 (124) 4.88 (124) 5.63 (143) 5.81 (148)
Height C 5.5 (140) 6.41 (163) 8.75 (222) 10.75 (273)
Net Weight Lb. (kg) 17.2 (7,8) 19.5 (8,9) 34 (15,4) 50.3 (22,8)
Planetary Gearing Stages Two Two Two Three
Needle Bearings Yes Yes Yes Yes
Angle-of-turn Protractor No No No No
Torque Conversion Chart Yes Yes Yes Yes
Shearable Replaceable Output Drive Yes Yes Yes Yes