Universal Tool UT8931 User manual

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INSTRUCTION MANUAL
Air Auto Shut-Off Straight Screwdrivers
This product is designed for installing and removing threadedfasteners in wood, metal,
and plastic. The use of spare parts/accessories other than those originally supplied by
the manufacturer may result in a drop in performance and/or increased
maintenance/noise level/vibrations, and as the result, the full cancellation of the
manufacturer’s liability. No other use is permitted. For professional use only.
Air Supply Requirements
1. Supply tool with 90 PSI (6.3 KG/CM2) of clean, dry air. Higher pressure drastically
reduces toollife.
2. Connect the tool to the airline using pipe, hose, and fitting sizes shown in the diagram
below.
Lubrication
1. Use an air line lubricator with SAE #10 oil, adjustedtotwo (2) drops per minute.
If an air line lubricator cannot be used, add air motor oil to the inlet once a day.
2. For gearing and clutch, use Shell-grade grease containingmolybdenum.
3. Grease clutches every 12,000 screws.
Torque Adjustment
Shut Off Clutch: Grip the tool around the handle and press the tool into the fixing
which is to be tightened. The motor will start and tighten the fixing to the required
torque set by adjusting the tensions on the clutch spring. At this point, the internal drive
is disengaged and the air to the motor cut off.
1/2" (12mm)
CA048362 (1/2") NPT
CA048361 (1/2") NPT
90
0 130
1/2" (12mm)
CA048360 (1/2") NPT
1/4 NPT
3/8" (10mm)
10' (3m) MAX
Torque Cover
Air Inlet
R/L Switch
Bit Retainer Sleeve

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1234
Operating Procedures
1. Make sure the air in airline is clean and dry.
2. Make sure the tool is connected correctly with the air compressor.
3. Install a bit (as illustrated below). Before using, do check the bit being installed in the
tool correctly.
4. Torque Adjustment: Take off the torque cover and turn the torque adjustment ring
clockwise to increase the torque. Turn the torque adjustment ring counter-clockwise
to reduce the torque. When the torque is set up, put the torque cover back and
fasten it tightly to avoid changing the set-up accidentally. (as illustrated below)
5. Right/Left Indication: Turn right (clockwise) the switch (marked “R”) for tightening
screws. Turn left (counter-clockwise) the switch (marked “L”) for loosening screws.
6. Push to start: Push the tool to activate the motor.
7. Suggestion: Correct / Re-set torques before operation on a daily basis.
8. If not usedfor a long time, re-set the tool to the lowest torque.
Installation of Bit
Press the sleeve softly
Insert a bit
Make sure the bit
is fixed tightly

3
2
2
1
1
2
2
1
1
Set The Torque
R/L Switch
R Indication –turn right (clockwise) –fastening screw
L Indication –turn left (counter-clockwise) –loosening screw
12 3
5
4
678
12 3
5
4
678
Turn clockwise to
increase the torque
Take off the
adjustment ring
Put the torque
cover back
Fasten the rear
housing
Release the torque cover
Push Softly
Turn counter clockwise
to lower the torque

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UT8931 AUTO SHUT-OFF STRAIGHT SCREWDRIVER 1700 RM / 0.3~2.5 NM

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UT8931 AUTO SHUT-OFF STRAIGHT SCREWDRIVER 1700 RM / 0.3~2.5 NM
INDEX# PARTS NO.
PARTS DESCRIPTION
QTY/
SET
INDEX# PARTS NO.
PARTS DESCRIPTION
QTY/
SET
17120001PS REAR HOUSING 1 41 SPP0208 SPRING PIN 1
27120061PS-W TORQUE COVER 1 42 7120045PS PIN 1
37160002PS C RING 1 43 7120043PS END PLATE 1
47120003PS BIT RETAINER SLEEVE 1 44 7160046PS PIN 1
57120004PS SPRING 2 45 R-1340HH BALL BEARING 1
67120005PS TORQUE RING 1 46 7120048PS VALVE 1
77160006PS REGULATION WASHER 1 47 OR0602 O-RING 1
87120007PS NEEDLE PIN 3 48 7120050PS END HOUSING 1
97120008PS CLUTCH HOUSING 1 49 7120063PS HANDLE GRIP 1
10 7120009PS ANVIL BUSHING 1 50 7160060PS SCREW HOLDER 1
11 7120010PS WASHER 1 51 7160052PS SCREW 1
12 7138011PS TORQUE SPRING 1 52 7120051PS-RD SWITCH 1
13 7160013PS STEEL BALL 1 53 OR2352178 O-RING 1
14 7120012PS ANVIL 1 54 7120054PS OPERATING ROD 1
15 7160014PS STEEL BALL 2 55 OR0302 O-RING 1
16 7120016PS SLIDE BASE 1 56 7160056PS VALVE PLATE 1
17 7120064PS C RING 1 57 7160057PS SPRING 1
18 7120018PS BALL RACE 1 58 7160058PS SILENCER 2
19 7160019PS STEEL BALL 53 59 7120059PS EXHAUST DEFLECTOR 1
20 7120020PS END CLUTCH 1 60 ZZ389507 SILENCER 1
21 7120021PS CENTER CLUTCH 1 61 OR1898 O-RING 1
22 STB3175 STEEL BALL 2 62 7160062PS AIR INLET 1
23 7120023PS REAR CLUTCH 1 63 CP1HP60 HANGER 1
24 7120024PS RETAINER 1
25 7160017PS C RING 1
26 7120025PS PILOT PIN 1
27 B6901ZZ BALL BEARING 1
28 7120027PS CENTER HOUSING 1
29 7120029PS GEAR CAGE 1
30 7120030PS PIN 8
31 7120031PS PLANT GEAR 8
32 7120032PS SUN GEAR 2
33 7150033PS GEAR CAGE 1
34 7120036PS INTERNAL GEAR 1
35 7155066PS RETAINING COLLAR 1
36 L-1680HH HALL BEARING 1
37 7120039PS FRONT PLATE 1
38 7120041PS BLADE 5
39 7138040PS ROTOR 1
40 7120042PS CYLINDER 1
65
7160064PS
TORQUE ADJUSTMENT
RING
1
64
7160080PS
DISTINGUISHABLE RING,
4PC/SET
1

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Division of Florida Pneumatic Mfg Corp.,
851 Jupiter Park Lane,
Jupiter, FL 33458, USA.
Ph: (1) 561 744 9500
Fax: [phone]
EC/UKCA DECLARATION OF CONFORMITY
We FLORIDAPNEUMATICMFGCORP,851JUPITERPARKLANE,JUPITER,FL33458,USA
Declareunderoursoleresponsibilitythatthemachinefallswithintheprovisionsofthe directive:
MachineType: UT8931 AirAutoShut-OffScrewdriver
TechnicalData:
ChuckSize: 1/4”HEXQC FreeSpeed: 1700rpm
Weight: 0.52kg(1.14lbs) Length: 193 mm(7,59”)
RecommendedHoseSize: 10m(3/8”) WorkingAirPressure: 6.3bar(90PSI)
Noise: (soundpressurelevel 72 dB(A) Vibration: 1.81Metres/Sec ²
Spindlesize: N/A Serial No: ________________
Towhichthisdeclarationrelates,isinconformitywiththerequirementsof:TheMachineryDirective2006/42/EC,
GeneralSafetyISO12100:2010,SpecificSafety-ImpactWrenches:ISO11148-6:2012,SpecificVibration- ISO
28927,Noise:ISO15744:2008
Nameandpositionofissuer: TonyLeNeveu:VPEngineering&Development
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