norbar PNEUTORQUE PTM series User manual

OPERATOR’S MANUAL
PNEUTORQUE
®
PTM & PTME SERIES STALL TOOLS
Part Number 34321 | Issue 8 | Original Instructions (English)
© Norbar Torque Tools Ltd 2022
NORBAR TORQUE TOOLS LTD
Wildmere Road, Banbury,
Oxfordshire, OX16 3JU
UNITED KINGDOM
Tel + 44 (0)1295 270333
Email [email protected]
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version of the Operator’s
Manual, please scan the
QR code below.
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To find your local
Norbar company or
distributor, please scan
the QR code below.

1
CONTENTS
Part Numbers Covered By This Manual 2
Safety 3
General Safety Rules 3
Projectile Hazards 3
Entanglement Hazards 3
Operating Hazards 3
Repetitive Motions Hazards 4
Accessory Hazards 4
Workplace Hazards 4
Dust and Fume Hazards 4
Noise Hazards 5
Vibration Hazards 5
Additional Safety Instructions for Pneumatic Power Tools 5
PTM Specific Safety Instructions 6
Markings on Tool 6
Introduction 7
Parts Included 7
Accessories 8
Features and Functions 9
Set Up Instructions 10
PneuTorque®Hanger 10
Connecting Air Supply 10
Air Lubrication 11
Torque Reaction 11
Clockwise/Counter Clockwise Operation 14
Setting Torque to Tighten Fastener 14
Operating Instructions 15
Tightening 15
Releasing 16
Dual Trigger Tools 17
Maintenance 18
Air Lubrication 18
Gearbox 18
Silencer 18
Drive Square 19
Calibration 19
Cleaning 19
Disposal 19
Specifications 20
Declaration of Conformity 22
Trouble Shooting 23
Glossary of Terms 23

2
PART NUMBERS COVERED BY THIS MANUAL
This manual covers the setup and use of Norbar PneuTorque® PTM and PTME stall tools.
Part Number Model Direction Maximum Torque
18100.F06 PTM-52-500-F Forward (Clockwise) only 500 Nꞏm
18100.B06 PTM-52-500-B Bi-directional
18101.F06 PTM-52-800-F Forward (Clockwise) only 800 Nꞏm
18101.B06 PTM-52-800-B Bi-directional
18102.F06 PTM-72-1000-F Forward (Clockwise) only 1000 Nꞏm
18102.B06 PTM-72-1000-B Bi-directional
18103.F08 PTM-72-1350-F Forward (Clockwise) only 1350 Nꞏm
18103.B08 PTM-72-1350-B Bi-directional
181456.F08 PTM-68-2000-F Forward (Clockwise) only 2000 Nꞏm
181456.B08 PTM-68-2000-B Bi-directional
180296.F08 PTM-80-2700-F Forward (Clockwise) only 2700 Nꞏm
180296.B08 PTM-80-2700-B Bi-directional
18159.F08 PTM-92-4000-F Forward (Clockwise) only
4000 Nꞏm
18159.B08 PTM-92-4000-B Bi-directional
18159.F12 PTM-92-4000-F Forward (Clockwise) only
18159.B12 PTM-92-4000-B Bi-directional
18108.F12 PTM-119-4500-F Forward (Clockwise) only 4500 Nꞏm
18108.B12 PTM-119-4500-B Bi-directional
18109.F12 PTM-119-6000-F Forward (Clockwise) only 6000 Nꞏm
18109.B12 PTM-119-6000-B Bi-directional
18140.F06 PTME-72-1000-F Forward (Clockwise) only 1000 Nꞏm
18140.B06 PTME-72-1000-B Bi-directional
18141.F08 PTME-72-2000-F Forward (Clockwise) only 2000 Nꞏm
18141.B08 PTME-72-2000-B Bi-directional
NOTE: The main PTM and PTMEmodels are listed above. Other PTM and PTME stall tools with
minor variances are also covered.
Description of Options:
Part Number Option Description
*****.F** Forward
(
Clockwise
)
onl
y
*****.B** Bi-directional
(
Clockwise and Counter Clockwise
)
*****.*06 3/4” A/F drive square size
*****.*08 1” A/F drive square drive
*****.*12 1 1/2” A/F drive square drive
*****.B**.DTM PneuTorque®with Dual Tri
gg
er Module
*****.B**.R
A
PneuTorque®with Ri
g
ht An
g
le Gearbox
Model Option Description
PTM-**-***-* PneuTorque®Twin Motor
PTME-**-****-* PneuTorque®Twin Motor fixed nose extension
PTM*-52-****-* 52mm diameter
g
earbox
PTM*-68-****-* 68mm diameter
g
earbox
PTM*-72-****-* 72mm diameter
g
earbox
PTM*-80-****-* 80mm diameter
g
earbox
PTM*-92-****-* 92mm diameter
g
earbox
PTM*-119-****-* 119mm diameter
g
earbox
PTM*-**-1000-* Maximum torque in Nꞏm

3
SAFETY
IMPORTANT: THIS OPERATOR’S MANUAL SHOULD BE KEPT FOR FUTURE REFERENCE.
General Safety Rules:
For multiple hazards, read and understand the safety instructions before installing, operating, repairing,
maintaining, changing accessories on, or working near the assembly power tool for threaded fasteners.
Failure to do so can result in serious bodily injury.
Only qualified and trained operators should install, adjust or use the assembly power tool for threaded
fasteners.
Do not modify this assembly power tool for threaded fasteners. Modifications can reduce the
effectiveness of safety measures and increase the risks to the operator.
Do not discard the safety instructions; give them to the operator.
Do not use the assembly power tool for threaded fasteners if it has been damaged.
Tools shall be inspected periodically to verify that the ratings and markings required are legibly marked
on the tool. The employer/user shall contact the manufacturer to obtain replacement marking labels
when necessary.
Projectile Hazards:
Failure of the workpiece, of accessories or even of the tool itself can generate high-velocity projectiles.
Always wear impact-resistant eye protection during the operation of the assembly power tool for
threaded fasteners. The grade of protection required should be assessed for each use.
Ensure that the workpiece is securely fixed.
Entanglement Hazards:
Entanglement hazards can result in choking, scalping and/or lacerations if loose clothing, personal
jewellery, neckware, hair or gloves are not kept away from the tool and accessories.
Inappropriate gloves can become entangled with the rotating drive, causing severed or broken fingers.
Rotating drive sockets and drive extensions can easily entangle rubber-coated or metal-reinforced
gloves.
Do not wear loose-fitting gloves or gloves with cut or frayed fingers.
Never hold the drive, socket or drive extension.
Keep hands away from rotating drives.
Operating Hazards:
The use of the tool can expose the operator's hands to hazards including crushing, impacts, cuts and
abrasions and heat. Wear suitable gloves to protect hands.
These tools require the use of a suitable reaction which presents a crushing hazard. Ensure to follow
the set up instructions in this manual.
Operators and maintenance personnel shall be physically able to handle the bulk, weight and power of
the tool.
Hold the tool correctly; be ready to counteract normal or sudden movements and have both hands
available.

4
Maintain a balanced body position and secure footing.
Release the trigger in the case of an interruption of the energy supply.
Use only lubricants recommended by the manufacturer.
Do not use in confined spaces and beware of crushing hands between tool and workpiece.
Repetitive Motions Hazards:
When using a power tool for threaded fasteners, the operator can experience discomfort in the hands,
arms, shoulders, neck, or other parts of the body.
While using an assembly power tool for threaded fasteners, the operator should adopt a comfortable
posture whilst maintaining secure footing and avoiding awkward or off-balanced postures. The operator
should change posture during extended tasks, which can help avoid discomfort and fatigue.
If the operator experiences symptoms such as persistent or recurring discomfort, pain, throbbing,
aching, tingling, numbness, burning sensations or stiffness, these warning signs should not be ignored.
The operator should tell the employer and consult a qualified health professional.
Accessory Hazards:
Disconnect the assembly power tool for threaded fasteners from the energy supply before changing the
tool or accessory.
Use only sizes and types of accessories and consumables that are recommended by the assembly
power tool for threaded fasteners manufacturer; do not use other types or sizes of accessories and
consumables.
Workplace Hazards:
Slips, trips and falls are major causes of workplace injury. Be aware of slippery surfaces caused by the
use of the tool and also of trip hazards caused by the air line or hydraulic hose.
Proceed with care in unfamiliar surroundings. Hidden hazards, such as electricity or other utility lines,
can exist.
The assembly power tool for threaded fasteners is not intended for use in potentially explosive
atmospheres and is not insulated against coming into contact with electrical power.
Make sure there are no electrical cables, gas pipes, etc., that can cause a hazard if damaged by use of
the tool.
Dust and Fume Hazards:
Dust and fumes generated when using assembly power tools for threaded fasteners can cause ill health
(for example, cancer, birth defects, asthma and/or dermatitis); risk assessment and implementation of
appropriate controls for these hazards are essential.
Risk assessment should include dust created by the use of the tool and the potential for disturbing
existing dust.
Direct the exhaust so as to minimize disturbance of dust in a dust-filled environment.
Where dust or fumes are created, the priority shall be to control them at the point of emission.
All integral features or accessories for the collection, extraction or suppression of airborne dust or fumes
should be correctly used and maintained in accordance with the manufacturer's instructions.
Use respiratory protection in accordance with employer's instructions and as required by occupational
health and safety regulations.

5
Noise Hazards:
Unprotected exposure to high noise levels can cause permanent, disabling, hearing loss and other
problems, such as tinnitus (ringing, buzzing, whistling or humming in the ears). Therefore a risk
assessment and implementation of appropriate controls for these hazards are essential.
Appropriate controls to reduce the risk may include actions such as damping materials to prevent
workpieces from “ringing”.
Use hearing protection in accordance with employer's instructions and as required by occupational
health and safety regulations.
Operate and maintain the assembly power tool for threaded fasteners as recommended in the
instruction handbook, to prevent an unnecessary increase in noise levels.
If the assembly power tool for threaded fasteners has a silencer, always ensure it is in place and in good
working order when the assembly power tool for threaded fasteners is operating.
Select, maintain and replace the consumable/tool as recommended in the instruction handbook, to
prevent an unnecessary increase in noise.
Vibration Hazards:
Exposure to vibration can cause disabling damage to the nerves and blood supply of the hands and
arms.
Wear warm clothing when working in cold conditions and keep your hands warm and dry.
If you experience numbness, tingling, pain or whitening of the skin in your fingers or hands, stop using
the assembly power tool for threaded fasteners, tell your employer and consult a physician.
Operate and maintain the assembly power tool for threaded fasteners as recommended in the
instruction handbook, to prevent an unnecessary increase in vibration levels.
Do not use worn or ill-fitting sockets or extensions, as this is likely to cause an increase in vibration.
Select, maintain and replace the consumable/tool as recommended in the instruction handbook, to
prevent an unnecessary increase in vibration levels.
Support the weight of the tool in a stand, tensioner or balancer, if possible.
Hold the tool with a light but safe grip, taking account of the required hand reaction forces, because the
risk from vibration is generally greater when the grip force is higher.
Additional Safety Instructions for Pneumatic Power Tools:
Air under pressure can cause severe injury:
oAlways shut off air supply, drain hose of air pressure and disconnect tool from air supply when not
in use, before changing accessories or when making repairs;
oNever direct air at yourself or anyone else.
Whipping hoses can cause severe injury. Always check for damaged or loose hoses and fittings.
Cold air shall be directed away from the hands.
Air lines with safe disconnect couplings, as supplied, are recommended. Whenever universal twist
couplings (claw couplings) are used, lock pins shall be installed and whipcheck safety cables shall be
used to safeguard against possible hose-to-tool and hose-to-hose connection failure.
Do not exceed the maximum air pressure stated on the tool.

6
For torque-control and continuous-rotation tools, the air pressure has a safety critical effect on
performance. Therefore, requirements for length and diameter of the hose shall be specified.
Never carry an air tool by the hose.
PTM Specific Safety Instructions:
This tool is intended for use with threaded fasteners. Other uses within the limits of the tool may be
appropriate. Please contact Norbar for guidance.
The user (or the user’s employer) shall assess the specific risks that can be present as a result of each
use. This Operator’s Manual contains sufficient information for the end user to be able to perform an
initial risk assessment.
Unexpected direction of drive square movement can cause a hazardous situation.
Isolate the tool from all energy sources before changing or adjusting the drive square or socket.
Markings on Tool
Pictograms on Tool Meaning
Read and understand Operator’s Manual.
Unexpected tool movement due to reaction forces or breakage of drive square
or reaction bar may cause injuries.
There is a risk of crushing between the reaction bar and work piece.
Keep hands away from reaction bar.
Keep hands away from tool output.

7
INTRODUCTION
The PneuTorque® PTM & PTME tools are air driven power tools designed for applying torque to threaded
fasteners. There are models to cover torque capacities of 500 Nꞏm to 2000 Nꞏm. The tools use an external
air pressure regulator (included in a Lubro Control Unit) to set the air pressure that controls the stall torque.
Parts Included
Description Part Number
PTM-52 PTM-68 PTM-72 PTM-80 PTM-92 PTM-119 PTME-72
Visual
Difference
PneuTorque®
Power Tool 18100.** 18101.** 181456.*** 18102.**
18103.**
18104.** 180296.** 18159.** 18108.**
18109.**
18140.**
18141.**
18149.**
Cranked
Reaction Bar 18646 19611 18494 19289 18936 18961 -
Reaction Bar
Retaining
Circlip 26588 265417 26486 26486 26486 26482 -
Hanger 18747 18747 18747 18971 18971 18971 18747
Operator’s
Manual (with
air pressure
graph &
language USB
[if required])
34321 34321 34321 34321 34321 34321 34321

8
Accessories
Description Part Numbe
r
PTM-52 PTM-68 PTM-72 PTM-80 PTM-92 PTM-119 PTME-72
Air Coupling
Socket for Hose 28933 28933 28933 28933 28933 28933 28933
Lubro Control Unit 16074 16074 16074 16074 16074 16074 16074
3/4" Drive Square
(fixing screw) 18544
(25351.30) - 18779 (25352.45) - - - -
1” Drive Square
(fixing screw) 18545
(25351.30) 19431 (25352.45) 18492 (25352.45) 19431 (25352.40) 18934 (25352.60) - -
11/2” Drive
Square
(fixing screw) - - - -
18935
(25352.60) 18959 (25352.80) -
3/4" Drive Shaft
(fixing pin) - - - - - - 77112.2 (26287)
1” Drive Shaft
(fixing pin) - - - - -
18802
(26287)
Reaction Plate
[NOTE 1]
18298 - 18298 - - - -
Reaction Adaptor
[NOTE 1]
18558 - 18290 - - - -
Single-Sided
Reaction Plate
18576 - 18292 - 18979 16687 -
Double-Sided
Reaction Plate
18590 - 18293 - 18980 18981 -
Silencer 18591 18591 18591 18591 18591 18591 18591
6” Blade Nose
Extension (3/4”)
18594.006 - (1”) 18755.006 - - - -
9” Blade Nose
Extension (3/4”)
18594.009 - (1”) 18755.009 - - - -
12” Blade Nose
Extension (3/4”)
18594.012 - (1”) 18755.012 - - - -
9” Nose Extension
for Truck & Bus
Wheels - -
(3/4”)
19087.009
(1”)
19089.009
- - - -
12” Nose
Extension for
Truck & Bus
Wheels
- -
(3/4”)
19087.012
(1”)
19089.012
- - - -

9
Description Part Numbe
r
PTM-52 PTM-68 PTM-72 PTM-80 PTM-92 PTM-119 PTME-72
Dual Trigger
Module
19286 19286 19286 19286 19286 19286 19286
Lifting Handle
- - 19363 19448 19363 19363 19363
NOTE 1: Requires both the ‘Reaction Bar’ and ‘Reaction Adaptor’ to be used together.
FEATURES AND FUNCTIONS
Twin Motor
The tools use two motors; one to quickly run-down the fastener and the other to achieve final torque.
Trigger
The trigger controls the flow of air. The more the trigger is pressed the more air flows into the tool. This
allows for slow positioning of socket and reaction bar. Once positioning is complete, the trigger must be fully
pressed for correct torque application.
Clockwise/Counter-Clockwise Selector
Tools fitted with this option can be used for tightening counter-clockwise threaded fasteners and for releasing
clockwise threaded fasteners.
Reaction Bar
The reaction bar ensures all reaction forces are contained, so that torque reaction is not passed back to the
operator. Several reaction bar styles are available, including the PTME / Nose Extension reaction where tool
access is restricted including applications on wheel nuts on heavy vehicles.
Non-Impacting
Low vibration levels make these tools comfortable and safe for the operator to use. In addition there is less
damage to the tool, socket and threaded assembly.
Replaceable Drive Square
To avoid internal damage to the tool (especially due to torque overload), the output drive square has been
designed to shear first. PneuTorque® tools are fitted with a drive square that can easily be replaced;
alternative drive square sizes are also available.

10
Hanger
The hanger can be used to suspend the PneuTorque®from a balancer.
Quick Tool Coupling
Air couplings supplied to allow quick tool connection and disconnection from the air hose.
SET UP INSTRUCTIONS
The PneuTorque®set up covers the following items:
1. PneuTorque®Hanger
2. Connecting Air Supply
3. Air Lubrication
4. Torque Reaction
5. Clockwise / Counter-Clockwise Operation
6. Setting torque to tighten fastener
Please complete the set up in the order shown.
PneuTorque
®
Hanger
The PneuTorque®hanger (Figure 1-E) is designed to be used with a suitable balancer to provided
comfortable tool use. If not required the hanger can be removed.
Connecting Air Supply
WARNING: TO AVOID HAZARD FROM WHIPPING AIR HOSES MAKE ALL
CONNECTIONS TO THE TOOL BEFORE TURNING ON THE AIR SUPPLY.
Make sure all hoses are clean, in good condition and free from dirt / water.
Connect the tool air inlet hose (Figure 1-A) to the outlet side of the lubro control unit (Figure 1-B) (not
supplied), observing air flow direction arrows.
TIP: On tools supplied with quick air couplings, fit the coupling plug
to the tool inlet and the coupling socket to air hose.
To connect, push couplings together.
To disconnect, pull back lock on socket coupling.
Connect the inlet side of the lubro control unit (Figure 1-B) to the air supply (Figure 1-C) using a minimum hose
size of 1/2” bore (12mm). Avoid using 1/2” bore hoses of longer than 5 meters from the supply to the pressure
regulator unit as this will reduce the performance of the tool.

11
Turn on air supply and check for air leaks.
FIGURE 1 – Connections
Air Lubrication
The tool must be used with oil lubrication in the supplied air. This is achieved by using a Lubro Control Unit
(not supplied).
Set the air lubrication:
a. Fill Lubro Control Unit with hydraulic oil (Fuchs Silkair VG22, Shell Tellus S2 VX15 or equivalent
good quality hydraulic oil).
b. Ensure the tool drive is free to rotate.
c. Run the tool by pressing the trigger.
d. Adjust Lubro Control Unit to supply 6 drops of oil per minute.
e. Release trigger.
See Lubro Control Unit Operator’s Manual for more details.
Torque Reaction
The reaction bar ensures all reaction forces are contained, so torque reaction is not passed back to the
operator. Several reaction bar styles are available.
Fit reaction bar as detailed below:
Tool Type Reaction Bar Type Fitting Instructions
PTM
Cranked reaction bar (standard) Fit reaction bar / plate (Figure 1-D) over the
drive square to engage reaction splines
Secure with circlip supplied
Single sided reaction plate (option)
Double sided reaction plate (option)
Nose Extension (option)
Fit as instructions supplied with nose
extension
PTME Nose Extension (standard) Factory fitted, not removable
C
B
A
D
E

12
It is essential the reaction bar rests squarely against a solid object or surface adjacent to the fastener to be
tightened. The contact area must be within the shaded area of Figure 2, with the contact area as large as
possible.
FIGURE 2 – Safe Reaction Window
WARNING: CARE MUST BE TAKEN TO ENSURE THAT THE REACTION BAR IS ONLY
USED WITHIN THE LIMITATIONS SHOWN IN FIGURE 2.
For special applications or where extra deep sockets must be used the standard bar may be extended but
only within the limitations shown on Figure 2. Alternative reaction bars are available, see page 5.
WARNING: FAILURE TO OBSERVE THE LIMITATIONS SHOWN IN FIGURE 2 WHEN
MODIFYING STANDARD REACTION BARS MAY RESULT IN PREMATURE
WEAR OR DAMAGE TO THE TOOL.
Standard drive square extensions MUST NOT be used as these will cause serious damage to the tool output
drive. A range of nose extensions is available for applications where access is restricted. These are
designed to support the final drive correctly.
The dimensions of the standard reaction bars is shown in the following table:
Reaction Bars (Standard) Tool ‘L’ ‘A’ ‘B’ ‘W’ ‘SQ’
PTM-52 60 131 71 35 3/4”
PTM-68 74 165 120 30 1”
PTM-72 75 165 91 48 1”
PTM-80 75.5 167 115 30 1”
PTM-92 98.5 205 115 50 1”
1 1/2"
PTM-119 127 199 65 55 1 1/2"
Extra Length Socket Standard Length Socket
Torque Reaction should be taken in the shaded areas only

13
Reaction Bars (PTME) Tool ‘L’ ‘A’ ‘B’ ‘W’ ‘SQ’
PTME-72
(1000 Nꞏm) 80.5 110 63 12 3/4"
PTME-72
(2000 Nꞏm) 51.5 110 62 16 1”
When the PneuTorque®is in operation the reaction bar rotates in the opposite direction to the output drive
square and must be allowed to rest squarely against a solid object or surface adjacent to the fastener to be
tightened. (See Figure 3).
PneuTorque®
Type
Torque Reaction
Clockwise Counter-Clockwise
(Bi-Directional Tools Only)
Example of
PTM tool
FIGURE 3(a) FIGURE 3(b)
Example of
PTM tool with
nose extension
for truck & bus
wheel option
FIGURE 3(c)
FIGURE 3(d)
WARNING: ALWAYS KEEP HANDS CLEAR OF THE REACTION BAR WHEN
THE TOOL IS IN USE OR SERIOUS INJURY MAY RESULT.

14
Clockwise/Counter-Clockwise Operation
Set clockwise / counter-clockwise as required.
NOTE: This setting only applies to bi-directional tools.
WARNING: FAILURE TO FULLY ENGAGE THE CLOCKWISE/COUNTER-CLOCKWISE
OPERATION SELECTOR WILL RESULT IN DAMAGE TO THIS PART OF
THE GEARBOX.
Setting Torque to Tighten Fastener
The torque created by the PneuTorque®depends on the air pressure setting. All tools are supplied with an
Air Pressure Graph that gives the air pressure required to produce the correct torque output.
Set the torque output as follows:-
1. Use the Air Pressure Graph (supplied)
to find the air pressure to achieve the
required torque.
2. With the tool running, adjust the Lubro Control Unit until the
correct air pressure is shown on the gauge.
IMPORTANT: THE WRENCH MUST BE FREE RUNNING WHILE ADJUSTING THE AIR PRESSURE
TO GIVE THE CORRECT SETTING.
IMPORTANT: CHECK THAT THE LUBRO CONTROL UNIT IS SUPPLYING APPROXIMATELY SIX
DROPS OF OIL PER MINUTE WHILE THE TOOL IS FREE RUNNING.
FIGURE 4(a) – Clockwise
(Arrow towards drive square
)
FIGURE 4(b) – Counter - Clockwise
(Arrow away from drive square)

15
OPERATING INSTRUCTIONS
WARNING: KEEP HANDS CLEAR OF THE REACTION BAR.
WARNING: WHEN USING THIS TOOL IT MUST BE SUPPORTED AT ALL TIMES IN
ORDER TO PREVENT UNEXPECTED RELEASE IN THE EVENT OF
FASTENER OR COMPONENT FAILURE.
Tightening
1. Fit PneuTorque®with the correct size impact or high quality socket to suit fastener.
TIP: For added safety it is recommended to secure the socket to the square drive.
This is often achieved using a pin and O ring, see socket manufacturer for guidance.
2. Ensure the Clockwise/Counter-clockwise selector is correctly set (if fitted).
3. Rotate the handle into a convenient position relative to the reaction bar. Fit the tool onto the fastener to
be tightened with the reaction bar adjacent to the reaction point. See Figure 5.
4. Adopt a suitable posture to counteract normal or unexpected movement of the tool due to reaction
forces.
5. Squeeze the trigger partially to bring the reaction bar into contact with the reaction point.
6. Fully press trigger and keep fully pressed until tool stalls then release trigger.
If the trigger is not fully pressed full torque will not be applied to the fastener.
7. Remove the tool from the fastener.
FIGURE 5

16
Releasing
NOTE: Only for bi-directional tools.
1. Fit the PneuTorque® with the correct size impact or high quality socket to suit the fastener to be
released.
TIP: For added safety it is recommended to secure the socket to the square drive.
This is often achieved using a pin and O ring, see socket manufacturer for guidance.
2. Ensure the clockwise/counter-clockwise selector is correctly set.
3. Rotate the handle into a convenient position relative to the reaction bar. Fit the tool onto the fastener to
be released with the reaction bar adjacent to the reaction point. See Figure 6.
4. Adopt a suitable posture to counteract normal or unexpected movement of the tool due to reaction
forces.
5. Squeeze the trigger partially to bring the reaction bar into contact with the reaction point.
6. Fully press trigger and keep fully pressed until threaded fastener releases.
TIP: If unable to release the fastener, increase the air pressure to the tool. Do not exceed the
maximum air pressure for the tool.
WARNING: EXCEEDING THE MAXIMUM AIR PRESSURE WILL CAUSE OVERLOADING
AND MAY LEAD TO SERIOUS DAMAGE.
WARNING: CHANGING THE AIR PRESSURE AFTER SETTING THE PRESSURE
REGULATOR WILL CHANGE THE STALL TORQUE VALUE.
FIGURE 6

17
Dual Trigger Tools
Tools purchased with a Dual Trigger Module (DTM) pre-fitted are identified with the part number suffix .DTM
Tools purchased with a DTM pre-fitted are calibrated at Norbar with the DTM in place. This is because the
DTM itself creates a pressure drop which would alter any previously determined calibration data.
WARNING: IF A TOOL IS PURCHASED WITH A DTM FITTED (AS A DTM TOOL) AND
THE USER WANTS TO REMOVE THE MODULE AND USE THE TOOL
WITHOUT IT, A NEW CALIBRATION IS REQUIRED. IN THIS SCENARIO
CONTACT NORBAR OR YOUR NORBAR DISTRIBUTOR.
With the DTM fitted the tool will not operate unless both the trigger on the DTM and the tool trigger are
pressed simultaneously.
As with the tool trigger, the DTM trigger must be fully pressed so as not to affect the air flow, pressure, and
ultimately the torque output.
FIGURE 7 – Dual Trigger Module

18
FIGURE 8 – Silencer Replacement
MAINTENANCE
For optimum performance and safety, regular tool maintenance is required. The user maintenance is limited
to the replacement of the drive square and the silencer. Any other maintenance or repairs should be carried
out by Norbar or a Norbar distributor. Maintenance intervals will depend on the tool usage and the
environment in which it is being used. The maximum recommended maintenance and recalibration interval is
12 months.
TIP: Steps the user can take to reduce the amount of maintenance required include:
1. Use the tool in a clean environment.
2. Use an air compressor fitted with a dryer.
3. Ensure the Lubro Control Unit has sufficient hydraulic oil.
4. Ensure the Lubro Control Unit delivers hydraulic oil at the correct rate.
5. Ensure the Lubro Control Unit is regularly maintained, see product manual.
6. Maintain the correct torque reaction.
Air Lubrication
Add Fuchs Silkair VG22, Shell Tellus S2 VX15 or equivalent good quality hydraulic oil to the Lubro Control
Unit.
Gearbox
Under normal operating conditions it is not necessary to re-grease the gearbox. The gearbox contains
Lubcon Turmogrease Li 802 EP or equivalent good quality grease.
Silencer
The silencer (part number 18591) must be changed every 12 months. This may be more frequent for high
tool usage or dirty environments.
TIP: Change silencer with tool upside down, as shown, to ensure internal parts (spring and valve)
are kept in place.
1. Remove M4 screw (A) (part number 25381.10) using a 2.5mm hexagon key.
2. Remove pin (B) (part number 26284) using a pin punch.
3. Pull out air inlet tube (D) with base plate & silencer.
4. Remove silencer (E) from air inlet tube.
5. Fit new silencer (part number 18591) over air inlet tube.
6. Fit air inlet tube assembly (C, D & E) into handle against spring resistance.
7. Fit pin (B) with a hammer.
8. Fit screw (A) and torque to 0.5 Nꞏm. Do not over tighten this screw as it is likely to break the base plate
moulding.
TIP: When refitting air inlet tube assembly into handle care should be taken to ensure correct
alignment between air inlet tube and spring. It may be easier to fit the spring into air inlet tube
first and secure with a small amount of grease.
C
B
A
D
E

19
Drive Square
To avoid internal damage (especially due to torque overload), the output drive square has been designed to
shear first. This saves major internal damage and allows easy square removal. For drive square part
numbers see page 5.
To replace drive square:
1. Remove the air supply.
2. Support tool in a horizontal position.
3. Remove the screw or spring pin, then remove drive square.
If the square has sheared it may be necessary to use pliers to remove the broken parts.
4. Fit new drive square.
5. Fit new screw and tighten between 4 Nꞏm to 5 Nꞏm (for PTM52) or 8 Nꞏm to 9 Nꞏm (for
PTM68/72/80/92/119) or insert new spring pin.
6. Connect air supply.
TIP: If the drive square fails continually then seek advice from Norbar or a Norbar distributor.
Calibration
To maintain the PneuTorque®accuracy it is recommended the tool is recalibrated at least every 12 months.
Contact Norbar or a Norbar distributor for more information.
Cleaning
Keep the tool in a clean condition to aid safety. Do not use abrasives or solvent based cleaners.
Disposal
Recycling Considerations:
Component Material
Handle Aluminium Case / Steel Internals
Gearbox (Clockwise / Counter-Clockwise) Aluminium Case / Steel Internals
Gearbox (52mm / 68mm / 72mm /
80mm / 92mm / 119mm) Steel with Nickel Plated Case / Steel Internals
Reaction Bar PTM-52 is Steel / PTM-72 is Aluminium
FIGURE 9 – Square Drive Replacement