Avdel 7551 User manual

I n s t r u c t i o n M a n u a l
Threaded Insert Power Tool
Pass onto user to read and keep for reference
07551

AVDEL policy is one of continuous development. Specifications shown in this document may be subject to changes which
may be introduced after publication. For the latest information always consult Avdel.
AIR PRESSURE Minimum - Maximum 5 - 8 bar 70 - 120 lbf/in2
FREE AIR VOLUME REQUIRED @ 5 bar / 75 lbf/in2480 litres/min 17 ft3 /min
MOTOR SPEED @ 75 lb/in2 minimum 950 RPM
CYCLE TIME Approximately 4 seconds
NOISE LEVEL 80 dB(A)
WEIGHT Without nose equipment 1.55 kg 3.4 lb
VIBRATION Less than 2.5 m/s28 ft/s2
S P E C I F I C A T I O N S F O R 0 7 5 5 1 T O O L
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Fault Diagnosis Table 16
Fitting/Servicing/Components 8-9
Regular Servicing 10
Maintenance 11-13
General Assembly & Parts List 14-15
CO N T E N T S
1
S A F E T Y
General 2
Specific to 07551 Tool 3
F A U L T D I A G N O S I S
N O S E A S S E M B L I E S
S E R V I C I N G
Air Supply 6
Operating Procedure 6
Clutch Adjustment - Accessories 7
P U T T I N G I N T O S E R V I C E
General 4
I N T E N T O F U S E
Tool Dimensions / Selection 4-5

SA F E T Y
2
This instruction manual must be read with particular attention to the following safety rules,
by any person installing, operating, or servicing this tool.
DO NOT USE OUTSIDE THE DESIGN INTENT.
DO NOT USE EQUIPMENT WITH THIS TOOL/MACHINE OTHER THAN THAT
RECOMMENDED AND SUPPLIED BY AVDEL.
ANY MODIFICATION UNDERTAKEN BY THE CUSTOMER TO THE TOOL/MACHINE,
NOSE ASSEMBLIES, ACCESSORIES OR ANY EQUIPMENT SUPPLIED BY AVDEL OR THEIR
REPRESENTATIVES, SHALL BE THE CUSTOMER'S ENTIRE RESPONSIBILITY. AVDEL WILL BE
PLEASED TO ADVISE UPON ANY PROPOSED MODIFICATION.
THE TOOL/MACHINE MUST BE MAINTAINED IN A SAFE WORKING CONDITION AT
ALL TIMES AND EXAMINED AT REGULAR INTERVALS FOR DAMAGE AND FUNCTION BY
TRAINED COMPETENT PERSONNEL. ANY DISMANTLING PROCEDURE SHALL BE
UNDERTAKEN ONLY BY PERSONNEL TRAINED IN AVDEL PROCEDURES. DO NOT DISMANTLE
THIS TOOL/MACHINE WITHOUT PRIOR REFERENCE TO THE MAINTENANCE INSTRUCTIONS.
CONTACT AVDEL WITH YOUR TRAINING REQUIREMENTS.
THE TOOL/MACHINE SHALL AT ALL TIMES BE OPERATED IN ACCORDANCE WITH
RELEVANT HEALTH AND SAFETY LEGISLATION. IN THE U.K. THE “HEALTH AND SAFETY AT
WORK ETC. ACT 1974” APPLIES. ANY QUESTION REGARDING THE CORRECT OPERATION
OF THE TOOL/MACHINE AND OPERATOR SAFETY SHOULD BE DIRECTED TO AVDEL.
THE PRECAUTIONS TO BE OBSERVED WHEN USING THIS TOOL/MACHINE MUST BE
EXPLAINED BY THE CUSTOMER TO ALL OPERATORS.
ALWAYS DISCONNECT THE AIRLINE FROM THE TOOL/MACHINE INLET BEFORE
ATTEMPTING TO ADJUST, FIT OR REMOVE A NOSE ASSEMBLY.
DO NOT OPERATE A TOOL/MACHINE THAT IS DIRECTED TOWARDS ANY PERSON(S).
ENSURE THAT VENT HOLES DO NOT BECOME BLOCKED OR COVERED AND THAT
HOSES ARE ALWAYS IN GOOD CONDITION.

3
In addition to the general safety rules opposite, the following specific safety points must also
be observed:
THE OPERATING PRESSURE SHALL NOT EXCEED 8 BAR - 120 LBF/IN2.
DO NOT OPERATE THE TOOL WITHOUT FULL NOSE EQUIPMENT IN PLACE.
WHEN USING THE TOOL, THE WEARING OF SAFETY GLASSES IS REQUIRED BOTH BY
THE OPERATOR AND OTHERS IN THE VICINITY TO PROTECT AGAINST FASTENER
PROJECTION, SHOULD A FASTENER BE PLACED ‘IN AIR’. WE RECOMMEND WEARING
GLOVES IF THERE ARE SHARP EDGES OR CORNERS ON THE APPLICATION.
TAKE CARE TO AVOID ENTANGLEMENT OF LOOSE CLOTHES, TIES, LONG HAIR,
CLEANING RAGS ETC. IN THE MOVING PARTS OF THE TOOL WHICH SHOULD BE KEPT DRY
AND CLEAN FOR BEST POSSIBLE GRIP.
WHEN CARRYING THE TOOL FROM PLACE TO PLACE KEEP HANDS AWAY FROM THE
TRIGGER/LEVER TO AVOID INADVERTENT START UP.
ALWAYS ADOPT A FIRM FOOTING OR A STABLE POSITION BEFORE OPERATING THE
TOOL AND BE AWARE OF A TORQUE REACTION ON THE HANDS WHEN THE TOOL IS
OPERATING, PARTICULARLY DURING THE REVERSING SEQUENCE. GRIP THE TOOL FIRMLY
TO BE ABLE TO COUNTER THE TORQUE REACTION, BUT NOT TOO TIGHTLY.
KEEP HANDS AWAY FROM THE ROTATING DRIVE SCREW AND THE NOSE END OF
THE TOOL. IF A FASTENER BECOMES JAMMED ON THE DRIVE SCREW, SHUT OFF THE AIR
SUPPLY AND DRAIN THE SUPPLY LINE TO THE TOOL BEFORE ATTEMPTING TO DISLODGE IT.
THE TOOL IS NOT ELECTRICALLY INSULATED.
THIS TOOL IS NOT DESIGNED FOR USE IN COMBUSTIBLE OR EXPLOSIVE
ATMOSPHERES.

The pneumatic 07551 type tool is designed to place Avdel threaded inserts at high speed making it ideal for batch or flow-line assembly
in a wide variety of applications throughout all industries.
Use the selection table opposite to select a complete tool which will be fitted with the correct nose assembly for the threaded insert
selected. ‘A’ and ‘B’ dimensions will help you assess the accessibility of your application.
It is also possible to order the base tool only (part number 07551-00400). For details of nose assemblies see pages 8 and 9.
4
IN T E N T O F U S E
Dimensions shown in bold are millimetres.
Other dimensions are in inches.
A
B
299
11.75
299
11.75 216
8.50
117
4.60
41
1.63
33
1.31
44
1.75
TORQUE
ADJUSTING
APERTURE

5
7551 TOOL SELECTION
NOSE (see drawing above for A & B)
TORQUE
SETTING (lbf ins)
ØCOMPLETE
TOOL PART Nº
NOSE ASSY PART NºA (mm)
INSERT
NAME & SERIES B (mm) A (in) B (in)
UNSET
CLUTCH PART Nº
STANDARD 1/4BSW 25 - 30 08551-00304 13 15 1/219/32 07556-09818 07551-00018
NUTSERTS 5/16 BSW 40 - 45 08551-00302 14 14 9/16 9/16 07443-09810 07551-00010
(9500) 3/8BSW 50 - 55 08551-00301 16 10 5/813/32 07443-09812 07551-00012
(9538) 1/4BSF 25 - 30 08551-00304 13 15 1/219/32 07556-09828 07551-00028
5/16 BSF 40 - 45 08551-00302 14 14 9/16 9/16 07443-09820 07551-00020
3/8BSF 50 - 55 08551-00301 16 10 5/813/32 07443-09822 07551-00022
1/4UNC 25 - 30 08551-00304 13 15 1/219/32 07556-09848 07551-00048
5/16 UNC 40 - 45 08551-00302 14 14 9/16 9/16 07443-09840 07551-00040
3/8UNC 50 - 55 08551-00301 16 10 5/813/32 07443-09842 07551-00042
1/4UNF 25 - 30 08551-00304 13 15 1/219/32 07556-09868 07551-00068
5/16 UNF 40 - 45 08551-00302 14 14 9/16 9/16 07443-09860 07551-00060
3/8UNF 50 - 55 08551-00301 16 10 5/813/32 07443-09862 07551-00062
0 BA 25 - 30 08551-00304 13 15 1/219/32 07556-09830 07551-00030
M6 25 - 30 08551-00304 13 15 1/219/32 07556-09886 07551-00086
M8 40 - 45 08551-00302 14 14 9/16 9/16 07443-09888 07551-00088
M10 50 - 55 08551-00301 16 12 5/815/32 07443-09880 07551-00080
L/F/T.S.N. (9698) M6 35 - 40 08551-00303 13 15 1/219/32 07556-09186 07551-04086
HEXSERT M6 30 - 40 08551-00303 16 19 5/89/16 07556-09286 07551-06086
(9688)M8 50 - 55 08551-00301 16 15 5/819/32 07443-09288 07551-06088
THIN 1/4BSW 35 - 40 08551-00303 13 131/21/217/32 07556-09918 07551-01018
SHEET 5/16 BSW 50 - 55 08551-00301 15 22 19/32 7/807443-09910 07551-01010
NUTSERT 1/4BSF 35 - 40 08551-00303 13 131/21/217/32 07556-09928 07551-01028
(9650) 5/16 BSF 50 - 55 08551-00301 15 22 19/32 7/807443-09920 07551-01020
1/4UNC 35 - 40 08551-00303 13 131/21/217/32 07556-09948 07551-01048
5/16 UNC 50 - 55 08551-00301 15 22 19/32 7/807443-09940 07551-01040
1/4UNF 35 - 40 08551-00303 13 131/21/217/32 07556-09968 07551-01068
5/16 UNF 50 - 55 08551-00301 15 22 19/32 7/807443-09960 07551-01060
0 BA 35 - 40 08551-00303 13 11 1/27/16 07556-09930 07551-01030
M6 35 - 40 08551-00303 13 131/21/217/32 07556-09986 07551-01086
M8 50 - 55 08551-00301 18 19 23/32 3/407443-09988 07551-01088

6
PU T T I N G I N T O S E R V I C E
A I R S U P P L Y
All tools are operated with compressed air at an optimum pressure of 5.5 bar. We recommend the use of pressure regulators and
automatic oiling/filtering systems on the main air supply. These should be fitted within 3 metres of the tool (see diagram below) to ensure
maximum tool life and minimum tool maintenance.
Air supply hoses should have a minimum working effective pressure rating of 150% of the maximum pressure produced in the system
or 10 bar, whichever is the highest. Air hoses should be oil resistant, have an abrasion resistant exterior and should be armoured where
operating conditions may result in hoses being damaged. All air hoses MUST have a minimum bore diameter of 6.4 millimetres or
1
/
4
inch.
Read servicing daily details page 10.
OPTION 2
Ensure that the correct nose assembly is fitted.
Connect the tool to the air supply.
Screw the insert lip first onto the drive screw of the tool.
With the insert on the tool, locate it into the prepared hole of
the application
Operate the throttle lever (item 30 page 15) and hold. The
drivescrew will screw and collapse the insert.
To release the tool from the insert, press the reverse valve
button (item 43 page 15) whilst still holding the throttle lever
down. The drivescrew will reverse out of the insert.
O P E R A T I N G P R O C E D U R E
I M P O R T A N T
When placing Standard Nutserts, lubricate the drive screw of the tool every 25 placings. This is best achieved by wiping
the drive screw with a sponge soaked with STP Lubricant part number 07992-00013
8
6
4
2
0
10
12
14
16
TAKE OFF POINT
FROM MAIN SUPPLY
STOP COCK
(USED DURING MAINTENANCE
OF FILTER/REGULATOR
OR LUBRICATION UNITS)
MAIN SUPPLY
DRAIN POINT
PRESSURE REGULATOR
AND FILTER
(DRAIN DAILY)
LUBRICATOR
3
M
E
T
R
E
S
M
A
X
I
M
U
M
OPTION 1
Ensure that the correct nose assembly is fitted.
Connect the tool to the air supply.
Place the insert into the prepared hole of the application.
Locate the drive screw of the tool into the insert.
Operate the throttle lever (item 30 page 15) and hold. The
drivescrew will screw and collapse the insert.
To release the tool from the insert, press the reverse valve
button (item 43 page 15) whilst still holding the throttle lever
down. The drivescrew will reverse out of the insert.
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7
C L U T C H A D J U S T M E N T
If you have ordered a complete tool the clutch will be set for the specified insert.
When purchased as a spare part, the clutch is supplied unset, part number 08551-00380.
Correct clutch setting is necessary to ensure optimum deformation of the insert. If the deformation is insufficient (clutch torque too low)
the insert will rotate in the application. If the deformation is excessive (clutch torque too high), thread distortion will occur and extensive
wear on the drivescrew may lead to fracture.
I M P O R T A N T
The air supply to the tool must be disconnected when adjusting the torque of the clutch
Slide round the cover of the clutch housing (item 63 page 15) until you can see the serrations of the adjustment nut of the clutch
(item 10 page 15).
Using clutch adjuster key 74 supplied with the tool, turn the adjustment nut clockwise to decrease the torque or anti-clockwise to
increase the torque.
Turn the key one full turn at a time and test the tool having rotated the clutch housing cover back in place. Repeat as required.
After dismantling the clutch, we suggest that you set the torque to its minimum by turning the key fully clockwise then adjust by turning
the key anti-clockwise two turns at a time until the correct torque is acheived.
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Two different accessories are available to make the connection to your air supply:
A C C E S S O R I E S
Hose Assembly
part nº 07008-000324
1/4” BSP
TO FIT 6.4 mm (1/4”) BORE PIPE
L = 137 cm
Hose Connector
part nº 07005-00276

SERVICING INSTRUCTIONS
Nose assemblies should be serviced at weekly intervals.
Remove the complete nose assembly using the reverse procedure to the ‘Fitting Instructions’.
Any worn or damaged part should be replaced.
Particularly check wear on drivescrew, thrust washers and thrust bearing.
Lubricate thrust washers and thrust bearings with high pressure grease (eg Shell Alvania E.P.I.)
Check springs are not distorted.
Assemble according to fitting instructions.
Nose assemblies are specifically designed for each size and type of insert . If you have purchased a complete tool, it will already be
fitted with the correct nose assembly for your insert.
It is essential that the correct nose assembly is fitted prior to operating the tool. By knowing your original complete tool part number
or the details of the insert to be placed, you will be able to order a new complete nose assembly using the selection table on page 5.
FITTING INSTRUCTIONS
I M P O R T A N T
The air supply must be disconnected when fitting or removing nose assemblies unless specifically instructed otherwise.
Where applicable, insert sleeve 8and thrust spring 9into nose housing 2.
Coat thrust washers 3and thrust bearing 4with high pressure grease (eg. Shell Alvania E.P.I.) and locate them in the order shown below into
the nose housing 2.
Where applicable, fit spacer 5through thrust washers and thrust bearings.
Insert drive screw 1through the above assembly.
Fit drive shaft 6into the hexagon hole in the drive screw head.
Insert stop 11 and spring 10 into the front of the base tool.
Screw adaptor 7into clutch housing of the base tool (left hand thread).
Offer up the nose assembly to the adaptor. It will be necessary to rotate the drive screw by hand to line up the hexagon on the drive shaft 6with
the hexagonal hole in the front jaw of the base tool.
Screw the nose housing 2onto the adaptor 7and tighten with a spanner (left hand thread).
After fitting a nose assembly and prior to using the tool check the clutch torque setting (see page 7).
8
NO S E A S S E M B L I E S
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2
7
10 11
89 4335
16
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9
NOSE ASSEMBLY COMPONENTS
The table below lists all nose assemblies available. Each nose assembly represents a unique assembly of components which can be
ordered individually. Components numbers refer to the text and illustration opposite. We recommend some stock as items will need
regular replacement. Read the nose assemblies servicing instructions opposite carefully. All nose assemblies also include spring 10 part
number 07430-08202 and stop 11 part number 07430-08203.
61 7NOSE ASSY 2 435 89
07443-09288 07001-00084 07522-08988 07007-00081 07007-00078 07443-03110 07430-01808 07443-08002 07522-08902 07154-03092
07443-09810 07001-00076 07443-06110 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09812 07001-00099 07443-06112 07007-00081 07007-00078 - 07430-01112 07443-08002 - -
07443-09820 07001-00077 07443-06110 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09822 07001-00098 07443-06112 07007-00081 07007-00078 - 07430-01112 07443-08002 - -
07443-09840 07001-00078 07443-06110 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09842 07001-00106 07443-06112 07007-00081 07007-00078 - 07430-01112 07443-08002 - -
07443-09860 07001-00079 07443-06110 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09862 07001-00105 07443-06112 07007-00081 07007-00078 - 07430-01112 07443-08002 - -
07443-09880 07001-00100 07443-06810 07007-00082 07007-00079 - 07430-01810 07443-08003 - -
07443-09888 07001-00084 07443-06110 07007-00081 07007-00078 07443-03110 07430-01808 07443-08002 - -
07443-09910 07001-00076 07443-08805 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09920 07001-00077 07443-08805 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09940 07001-00078 07443-08805 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07443-09960 07001-00079 07443-08805 07007-00081 07007-00078 07443-03110 07430-01110 07443-08002 - -
07556-09186 07001-00337 07552-06806 07007-00080 07007-00077 - 07522-08802 07443-08001 07552-08806 07150-00403
07556-09286 07001-00337 07522-08986 07007-00080 07007-00077 - 07522-08802 07443-08001 07522-08901 07150-00504
07556-09818 07001-00334 07443-06108 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09828 07001-00333 07443-06108 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09830 07001-00335 07443-06108 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09848 07001-00336 07443-06108 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09868 07001-00110 07443-06108 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09886 07001-00337 07443-06108 07007-00080 07007-00077 - 07522-08802 07443-08001 - -
07556-09918 07001-00334 07551-08803 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09928 07001-00333 07551-08803 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09930 07001-00335 07551-08802 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09948 07001-00336 07551-08803 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09950 07001-00300 07440-08805 07007-00080 07007-00077 07521-08808 07521-08803 07443-08001 - -
07556-09968 07001-00110 07551-08803 07007-00080 07007-00077 - 07522-08801 07443-08001 - -
07556-09986 07001-00337 07551-08802 07007-00080 07007-00077 - 07522-08802 07443-08001 - -

10
SE R V I C I N G T H E T O O L
Regular servicing should be carried out and a comprehensive inspection performed annually or every 200000 cycles, whichever is
soonest.
I M P O R T A N T
The employer is responsible for ensuring that tool maintenance instructions are given to the appropriate personnel.
The operator should not be involved in maintenance or repair of the tool unless properly trained.
D A I L Y
Daily, before use or when first putting the tool into service, pour a few drops of clean, light lubricating oil into the air inlet of the tool if no lubricator
is fitted on air supply. If the tool is in continuous use, the air hose should be disconnected from the main air supply and the tool lubricated every
two to three hours.
Check for air leaks. If damaged, hoses and couplings should be replaced by new items.
If there is no filter on the pressure regulator, bleed the air line to clear it of accumulated dirt or water before connecting the air hose to the tool.
If a filter is fitted, drain it.
Check that the nose assembly is correct.
Renew the drivescrew in the nose assembly if worn or damaged.
W E E K L Y
Fully dismantle and service the nose assembly (see instructions page 8).
Lubricate the clutch spring with high pressure grease (eg. Shell Alvania E.P.I.).
Check the clutch torque setting (see clutch adjustment procedure page 7).
Check for air leaks in the air supply hose and fittings.
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FIRST AID
SKIN: As the grease is completely water resistant it is best
removed with an approved emulsifying skin cleaner.
INGESTION: Make the individual drink 30ml Milk of
Magnesia, preferably in a cup of milk.
EYES: Irritant but not harmful. Irrigate with water and
seek medical attention.
ENVIRONMENT
Scrape up for burning or disposal on approved site.
M O L Y L I T H I U M G R E A S E E P 3 7 5 3 S A F E T Y D A T A
FIRE
FLASH POINT: Above 220°C.
Not classified as flammable.
Suitable extinguishing media: CO2, Halon or water spray
if applied by an experienced operator.
HANDLING
Use barrier cream or oil resistant gloves
STORAGE
Away from heat and oxidising agent.
For lubricating internal tool parts other than those described previously, use Moly Lithium Grease EP3753 (part number 07992-00020)

11
M A I N T E N A N C E
Every 200000 cycles the tool should be completely dismantled and components replaced where worn, damaged or when recommended.
All ‘O’ rings and seals should be replaced with new ones and lubricated with Moly Lithium grease EP 3753 before assembling.
I M P O R T A N T
Safety Instructions appear on pages 2 & 3.
The employer is responsible for ensuring that tool maintenance instructions are given to the appropriate personnel.
The operator should not be involved in maintenance or repair of the tool unless properly trained.
The airline must be disconnected before any servicing or dismantling is attempted, unless specifically instructed not to.
It is recommended that any dismantling operation be carried out in clean conditions.
Item numbers in bold refer to the General Assembly drawing and parts list (pages 14 and 15).
Prior to dismantling the tool it is nesessary to remove the nose assembly. For simple removal instructions see the nose assemblies section
(pages 8 and 9).
For total tool servicing we advise that you proceed with dismantling the sub-assemblies in the order shown (pages 11 to 13).
CLUTCH
Unscrew clutch housing 71 from front of the tool (left hand thread) and pull out bit holder 1and clutch assembly.
Slight resistance may be set due to the friction of ‘O’ ring 61 on the square drive shaft and between the bore of the tool assembly.
Bit holder 1may be separated from jaw positive 70 by pressing them apart.
Cover 63 may be sprung off of clutch housing 71.
Remove ‘O’ ring 61 from clutch spindle 8and pull off spacer 11.
Remove bush 2from front end of clutch spindle 8.
Insert clutch adjusting key in adjustment plate assembly 9and rotate in a clockwise direction to unscrew adjustment nut 10 from
clutch spindle 8.
Slide off adjustment plate assembly 9(do not remove the three balls from this assembly), clutch spring 7and thrust pad 6.
Carefully lever off ring 65 and remove two retaining ring halves 64.
Over a suitable container, slide back drive jaw 66 and remove woodruff key 67, six pins 5and six balls 4.
Slide off bearing 68 and slide back jaw driven 3to release sixteen balls 69.
Generously lubricate the clutch spring with high pressure grease (eg. Shell Alvania EP1)
Assemble in reverse order of dismantling ensuring that the square drive shaft is fully in. As the drive shaft bottoms and the friction
of ‘O’ ring 61 is overcome, a small click can be heard.
Always re-set the clutch adjustment (see procedure page 7).
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12
BACKHEAD ASSEMBLY
Pull the sides of bail 36 apart to spring it out of its retaining holes.
Drive out roll pin 31 and remove throttle lever 30.
Unscrew nipple 35 from extended nipple 34 and unscrew extended nipple 34 from backhead and reverse bush assembly 45.
Remove ‘O’ ring 33, exhaust gauze 32 and muffler 37.
Prise ‘O’ ring 38 out of groove in valve bush assembly 45.
Unscrew valve cap 41 and remove seal 42, spring 40 and push out valve stem 29.
Using a small sharp edged chisel, carefully lever out small dome headed screw until reverse valve 44 and reverse valve button 43
can be withdrawn.
Remove spring 26, spring retaining plate 27 and circlip 28.
Do NOT attempt to remove reverse valve bushing.
Assemble in reverse order to dismantling.
FRONT GEAR ASSEMBLY
Unscrew front gear assembly from the tool using a spanner on the flats of ring gear 12 and unscrew the inner ring gear using a
spanner on the flats of housing 16.
Remove spacer 51 and tap front end on a wooden block. The motor assembly will slide out.
Unscrew motor housing 23 from valve bush assembly 45.
Hold ring gear 62 and from the front end tap out the internal assembly.
Remove two bearings 12 from planet gear spindle 56 and take off spacers 52 and 60.
Push out two planet gear shafts 14 complete with thirty needle rollers 58.
Remove two planet gears 13 and rotor spline gear 59.
Assemble in reverse order to dismantling.
REAR GEAR ASSEMBLY
Hold housing 16 and tap out the internal assembly from the front end.
Slide off spacer 20 and remove two bearings 12 and spacers 17 and 52 from planet gear spindle 15.
Push out two planet gear shafts 14 complete with thirty needles 53.
Remove two planet gears 13 and drive gear 18.
Remove circlip 55 from housing 16.
Assemble in reverse order to dismantling.
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13
I M P O R T A N T
Check the tool against daily and weekly servicing.
MOTOR ASSEMBLY
Hold lower end plate 50 and tap the splined end of rotor 48 with a soft hammer so as not to damage the splines and remove rotor
cylinder 22 complete with locating pin 47 and pin 49.
Remove five rotor blades 24 from rotor 48.
Support rear end plate 25 in a tube with a bore diameter as close as possible to the largest diameter of the rotor and tap the non-
splined end of the rotor 48 to remove it from the rear end plate and bearing assembly.
With a punch tap out bearing 46 from rear end plate 25 and bearing 21 from lower end plate 50.
Assemble in reverse order to dismantling, ensuring the following:
Locating pin 47 correctly locates the motor assembly to the backhead assembly before screwing on motor housing 23.
Lower end plate 50 and rear end plate 25 that abut the rotor cylinder 22 are clean and free from burrs and surface marking. If
necessary, lap faces that abut the rotor cylinder on a flat fine grade of abrasive paper. Press bearings into front and end plates
50 & 25. Support the bearings in the rear end plate 25 on its inner ring and tap the rotor on its splined end with a soft hammer
onto the bearing until the rotor locates against the rear end plate.
Support the inner face of rear end plate as close as possible to the largest diameter of the rotor 48 and tap the non-splined end
of the rotor until a clearance of 0.0015" (0.040 mm)/0.0025"(0.065 mm) is obtained between the inner face of the rear end plate
and the rotor. This clearance is to be checked when pulling the rotor away from the rear end plate and bearing assembly.
Spin rotor 48 to ensure that it will rotate freely in the rear end plate bearing.
Locate the rotor cylinder 22 by the locating pin 47 to the rear end plate, checking that the ports in the end plate match with those
in the rotor cylinder.
Insert the five rotor blades 24 into the rotor 48 and locate correctly the lower end plate 50 to the rotor cylinder 22
using pin 49.
Ensure that the rotor 48 will spin freely in the assembly. This is best checked by placing the motor assembly in a vee block and
squeezing the front and rear end plate against the cylinder.
■
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■
■
■
■
■
■
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14
GENERAL ASSEMBLY OF BASE TOOL 07551-00400
71
70 68 67
69
3456
66 65 64 62
6163 59 57
60 58 56 54 52 50 49 48 47 45 40 39 38 37
55 53 51 46 43 42 41 3644
79
108 12 14
1311 15 17 19 21 22 23 32 33 34
35
16 18 20 24 25 26 27 28 29 30 31
1
2

15
01 08430-00218 BIT HOLDER 1 -
02 08446-00406 BUSH 1 1
03 08430-00235 JAW DRIVEN 1 -
04 08446-00410 BALL 6 6
05 08446-00411 PIN 6 6
06 08446-00412 THRUST PAD 1 -
07 08430-00230 SPRING 1 1
08 08446-00408 CLUTCH SPINDLE 1-
09 08446-00403 ADJUSTMENT PLATE ASSEMBLY 1-
10 08446-00402 ADJUSTMENT NUT 11
11 08446-00401 SPACER 1 -
12 08430-00705 BEARING 4 -
13 08434-00206
PLANET GEAR
2-
14 08434-00208 PLANET GEAR SHAFT 2-
15 08434-00209 PLANET GEAR SPINDLE 1-
16 08430-00708 HOUSING 1 -
17 08434-00205 SPACER 1 -
18 08434-00203 ROTOR SPLINE GEAR 1-
19 08434-00206
PLANET GEAR
2-
20 08430-00706 SPACER 1 -
21 08430-00601 BEARING 1 -
22 08435-00214 ROTOR CYLINDER 1-
23 08433-00212 MOTOR HOUSING 1-
24 08430-00608 ROTOR BLADE 5 5
25 08433-00214 REAR END PLATE 1-
26 08444-00401 SPRING 1 1
27 08433-00215 SPRING RETAINING PLATE 1-
28 08433-00216 CIRCLIP 1 2
29 08433-00217 VALVE STEM 1 -
30 08433-00218 THROTTLE LEVER 1-
31 08430-00207 ROLL PIN 1 2
32 08433-00224 EXHAUST GAUZE 12
33 08433-00223 'O' RING 1 3
34 08433-00222 NIPPLE 1 -
35 08433-00221 NIPPLE 1 -
36 08433-00220 BAIL 1 -
37 08433-00225 MUFFLER 1 2
38 08433-00219 'O' RING 1 3
39 08414-00209 'O' RING 1 3
40 08430-00202 SPRING 1 1
41 08433-00226 VALVE CAP 1 -
42 08433-00227 SEAL 1 1
43 08433-00229 REVERSE VALVE BUTTON 1-
44 08433-00228 REVERSE VALVE 1 -
45 08433-00232 VALVE BUSH ASSEMBLY 1-
46 08430-00606 BEARING 1 -
47 08433-00231 LOCATING PIN 1 -
48 08430-00605 ROTOR 1 -
49 08433-00233 PIN 1 -
50 08430-00602 FRONT END PLATE 1-
51 08430-00215 SPACER 1 -
52 08434-00201
SPACER
1-
53 08434-00207 NEEDLE ROLLERS 30 30
54 08434-00208 PLANET GEAR SHAFT 2-
55 08430-00707 CIRCLIP 1 2
56 08443-00401 PLANET GEAR SPINDLE 1-
57 08434-00201 SPACER 1 -
58 08434-00207
NEEDLE ROLLERS
30 30
59 08434-00203 ROTOR SPLINE GEAR 1-
60 08443-00402 SPACER 1 -
61 08414-00209 'O' RING 1 3
62 08434-00211 RING GEAR 1 -
63 08446-00404 COVER 1 -
64 08410-00256 RETAINING RING HALF 2-
65 08410-00263 RING 1 -
66 08446-00407 DRIVE JAW 1 -
67 08430-00223 KEY 1 -
68 08430-00236 BEARING 1 1
69 08430-00221 BALL 16 16
70 08430-00217 JAW-POSITIVE 1 -
71 08446-00409 CLUTCH HOUSING 1-
72 08414-00202 DRIVE SCREW 1
NOT SHOWN
73 08435-00203 PIN 1
NOT SHOWN
74 08446-00414 CHUCK KEY 1
NOT SHOWN
ITEM PART Nº DESCRIPTION QTY SPARES ITEM PART Nº DESCRIPTION QTY SPARES
07551-00400 PARTS LIST

F A U L T D I A G N O S I S T A B L E
FA U L T D I A G N O S I S
SYMPTOM POSSIBLE CAUSE REMEDY
Tool runs slowly ➝Insufficient air pressure ➝Adjust air pressure at base of handle. 5 - 8 bar maximum.
➝Incorrect bore of hose ➝Ensure bore of hose is 6.4mm minimum
➝Insufficient air volume ➝Ensure there is no restriction in the air supply or connections
➝Tool not properly lubricated internally ➝Lubricate as per instructions (see servicing the tool page 10)
Tool fails to start ➝Tool not properly lubricated ➝Lubricate then depress trigger several times
➝Restricted air pressure/volume ➝Ensure there is no restriction in the air supply
Inserts not ➝Torque setting too low ➝Adjust (see clutch adjustment page 7)
pulling up ➝Insufficient air pressure/volume ➝Adjust air pressure/volume
➝Insert out of grip ➝Select correct insert for application
➝Lack of lubrication on insert ➝Change batch of inserts
➝Lack of lubrication on drive screw ➝Lubricate drive screw correctly (see page 6)
(Standard Nutserts only)
➝Insert thread restricted ➝Change Insert
➝Drive screw thread worn ➝Replace drive screw
➝Incorrect combination of insert and drive screw ➝Check part numbers and replace
Standard Nutserts ➝Dirty Nutserts ➝Clean Nutserts
centres falling out ➝Insufficient torque on setting on tool ➝Adjust (see clutch adjustment page 7)
➝Application thickness below minimum ➝Change to correct Insert
recommended grip
➝Oversize hole in application ➝Correct hole size in application
Worn drive screws ➝Incorrect torque setting on tool ➝Adjust (see clutch adjustment page 7)
➝Drive screw not lubricated ➝ Only occurs when placing Standard Nutserts - see operating
procedure page 6)
➝Inserts not lubricated ➝Change batch of inserts
➝Tool not held correctly ➝Ensure tool is held square to application
➝Incorrect insert/drive screw threads ➝Replace with correct insert/drive screw
➝Restricted insert threads ➝Change batch of inserts
16

® © ™ Products mentioned and /or illustrated within this publication are subject to patent, design or copyright protection in many countries.
Engineered Fastening and Assembly Systems
Declaration of Conformity
We, Avdel UK Limited, Mundells, Welwyn Garden City, Herts, AL7 1EZ
declare under our sole responsibility that the product
type 07551
Serial Nº ..............................................
to which this declaration relates is in conformity with the following standards or other formative documents
EN292 part 1 and part 2
ISO 8662 part 1 and part 7
ISO 3744 and PNEUROP test code PN8TC1
ISO PREN792 part 6
following the provisions of the Machine Directive 98/37/EC
This box contains a power tool which is in conformity with Machines Directive
98/37/EC. The ‘Declaration of Conformity’ is contained within.
Welwyn Garden City - date of issue A. Seewraj
Product Engineering Manager - Automation Tools

Manual No. Issue Change Note No.
07900-00657
B07/325
© Avdel UK Limited 2007
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