Traditional Tool Repair A338.0002 Guide

13294601.en/MAS/© 01.03
OPERATION MANUAL / SPARE PARTS LIST
MANUAL SEALLESS
STEEL STRAPPING TOOL WITH
ADJUSTABLE TENSION LEVER
MODEL A338.0002
13.2946.01
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2
1 SAFETY INSTRUCTIONS
Read these instructions carefully. Failure to follow these instructions can result in severe personal injury.
Eye injury hazard
Failure to wear safety glasses with side shields can result in severe eye injury or blindness. Always wear safety glasses with side shields
which conform to ANSI Standard Z87.1.
Operation
Tool must not be used by persons not properly trained in their use. Before tensioning strap, read and understand the tool operating
instructions. Failure to follow the operating instructions or improper load positioning could result in strap breakage.
Become familiar with your tool and keep fingers away from areas that can pinch or cut.
Joints
You are fully responsible to review the joints made by your tool. Become familiar with the seal control and seal adjustment described in
this operation manual. Misformed joints may not secure the load and could cause serious injury. Never handle or ship any load with
improperly formed joints.
INDEX PAGE
1 SAFETY INSTRUCTIONS 2
2 WARRANTY CONDITIONS AND LIABILITY 4
3 APPROPRIATE USE 4
4 TECNICAL DATA 4
5 CHART OF TYPES A338.0002 5
6 OPERATION LEVERS 6
7 OPERATION 6
8 SPARE PARTS LIST 13.2946.01 10
9 SEAL CONTROL 13
10 SEAL ADJUSTMENT 14
11 TENSION FORCE ADJUSTMENT 14
12 CLEANING 15
13 EXCHANGE OF WEARING PARTS 15
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3
Dispensing strap
Only dispense strap from a dispenser specifically designed for strap.
Tuck strap end back into dispenser when not in use.
Protective gloves
When handling strap, always wear protective gloves.
Strap warnings
Never use strap as a means of pulling or lifting loads. Failure to follow these warnings can result in severe personal injury.
Strap breakage hazard
Improper operation of the tool, excessive tensioning, using strap not recommended for this tool or sharp corners on the load can result in
a sudden loss of strap tension or in strap breakage during tensioning, which could result in the following:
• A sudden loss of balance causing you to fall.
• Both tool and strap flying violently towards your face.
Note as follows:
• If the load corners are sharp, use edge protectors.
• Place the strap correctly around a properly positioned load.
• Positioning yourself in-line with the strap, during tensioning and sealing, can result in severe personal injury from flying strap or
tool. When tensioning or sealing, position yourself to one side of the strap and keep all bystanders away.
• Use the correct strap quality, strap width, strap gauge and strap tensile strength recommended in this manual for your tool. Using
strap not recommended for this tool can result in strap breakage during tensioning.
Cutting tensioned strap
When cutting strapping, use the proper strapping cutter and keep other personnel and yourself at a safe distance from the strap. Always
stand to side of the strap, away from the direction the loosened strap end will fly. Use only cutters designed for strap and never hammers,
pliers, hacksaws, axes, etc.
Fall hazard
Keep your working area tidy. Untidiness of your working area may cause a risk of injury. Maintaining improper footing and/or balance
when operating the tool can cause you to fall. Before tensioning and especially in elevated areas, always establish good balance. Both
feet should be securely placed on a flat, solid surface, especially when working in elevated areas. Do not use the tool when you are in an
awkward position.
Pay attention to the rules and regulations for preventions of accident which are valid for the work place.
Tool hazards
A well maintained tool is a safe tool!
Check tool regularly for broken or worn parts. Do not operate a tool with broken or worn parts.
Never modify any tool. Modification can result in severe bodily injury.
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4A3380002.en_teil1
2 WARRANTY CONDITIONS AND LIABILITY
FROMM Holding AG warrants all its strapping tools and machine heads during a period of 90 days from the
date of sale. The warranty includes all deficiencies clearly resulting from poor manufacturing or faulty materials.
Damage claims as a result of production shutdowns and claims for damage to persons and to property resulting
from warranty deficiencies cannot be asserted by the customer.
The warranty excludes:
• wearing parts
• deficiencies resulting from improper installing, incorrect handling and maintaining the tool
• deficiencies resulting from using the tool without or with defective security- and safety devices
• disregard of directions in the operation manual
• arbitrary modifications of the tool
• deficient control of wearing parts
• deficient repair works of the tool
• Use of consumable products not recommended by FROMM Holding AG
We reserve the right to modify the product at any time in order to improve its quality.
3 APPROPRIATE USE
The tool model A338 has been designed to strap packages with steel strapping exclusively.
The warranty / liability excludes:
• non appropriate use of the tool,
• disregard of directions in the operation manual,
• disregard of control- and maintenance instructions.
4 TECNICAL DATA
Dimensions without suspension bracket
Tensioning force
5.5 KN / 1240 lbs with adjustment at 80 Nm / 710 lbs (240 N / 54 lbs manual force).
Sealing force
The manual force required for sealing is approx. 220 N / 50 lbs.
Joint strength
Approx. 80% of the strap’s tensile strength.
Tool Package
Length: 670 mm / 26.4"
(Lever in horizontal position) 690 mm / 27.2"
Width: 170 mm / 6.7" 215 mm / 8.5"
Height: 450 mm / 17.7"
(Sealing lever in vertical position) 160 mm / 6.3"
Weight: 5.9 kg / 13 lbs 0.77 kg / 1.7 lbs
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5A3380002.en_teil1
Steel strapping
5 CHART OF TYPES A338.0002
Uniflex = Strapping with max. tensile strength of 850 N/mm2(123 000 psi)
Ultraflex = Strapping with max. tensile strength of 1100 N/mm2(160 000 psi)
Suspension bracket
For vertical and horizontal operation the tool can be suspended on a spring loaded balancer using suspension
bracket A33.5301.
Width: 12.7 - 19 mm / 1/2"-3/4" (see chart of types)
Thickness: 0.50 - 0.70 mm / .020"-.028" (see chart of types)
Quality: Fundamentally the A338 allows the use of all current steel straps with tensile strengths ranging
from 700 to 1100 N/mm2/ 100 000 - 160 000 psi (see chart of types).
Straps with a low breaking elongation are unsuitable.
Item No. Model Strap width Strap thickness
Uniflex Ultraflex
13.2911 A338/12.7/0.50-0.64/TW 12.7mm / 1/2" 0.50-0.64mm / .020-.025" 0.50-0.64mm / .020-.025"
13.2916 A338/12.7/0.70/UNI/TW 12.7mm / 1/2" 0.70mm / .028" -
13.2921 A338/13/0.50-0.64/TW 13.0mm 0.50-0.64mm / .020-.025" 0.50-0.64mm / .020-.025"
13.2926 A338/13/0.70/UNI/TW 13.0mm 0.70mm / .028" -
13.2931 A338/16/0.50-0.64/TW 16.0 / 5/8" 0.50-0.64mm / .020-.025" 0.50-0.64mm / .020-.025"
13.2936 A338/16/0.70/UNI/TW 16.0 / 5/8" 0.70mm / .028" -
13.2941 A338/19/0.50-0.64/TW 19.0mm / 3/4" 0.50-0.64mm / .020-.025" 0.50-0.64mm / .020-.025"
13.2946 A338/19/0.70/UNI/TW 19.0mm / 3/4" 0.70mm / .028" -
A33.5301
Vertical A33.5301 Horizontal
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6A3380002.en_teil1
6 OPERATION LEVERS
7 OPERATION
Feeding the strapping around the
package
The strapping is fed around the package in the
direction as shown in the illustration. The strapping
end is held tightly with the left hand and pulled firmly
towards the operator with the right hand.
Loading the strapping
The rocker is raised with the right hand. The left hand
inserts the two straps lying precisely upon another
into the tool until they hit the strap stops.
The lower strap end must slightly protrude the end of
the base plate.
Be certain that the strapping is held by the strap guide.
Tensioning handle
Sealing lever
Rocker
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7A3380002.en_teil1
Tensioning the strapping
The tool is held tightly with the left hand being placed on the
sealing lever. The torque tension lever is now moved forward
and backward with the right hand until the torque disengages
(click-stop sound ).
Sealing the strapping
The sealing lever is moved forward using the left hand until it
hits the stop. The lever is then moved back to its initial position.
When sealing, the right hand absorbs the sealing force by
holding the tensioning handle.
Releasing the tool
Hold the cut off strap end with the left hand, lift the rocker with
the right hand and push the tool from the applied strap to the
right.
Releasing the feed wheel after faulty operation
If the feed-wheel is jammed with the strap and the rocker cannot
be released the following procedure is necessary to remove the
strapping from the tool:
• loosen screws N1.1563, N1.1564 and N11.1112.
• lift rocker and remove steel strapping from the tool.
• retighten screws N1.1563, N1.1564 and N11.1112 with a
torque of 90 Nm / 800 lbs. Rocker
N1.1564
N1.1563
N11.1112
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2 31A
B
C
D
E
A33.0103
A33.0105
A33.0104
N1.1912
N1.6503
N4.9145
N2.4902
N2.4906
A33.5127
A33.5126
A33.5105
N1.6203
N2.2147
N1.1806 
N2.2110
A38.3134
A38.3123
A33.5118
A33.5125
N2.2109
A38.3130
N1.1807
N1.1807
A33.5110
 N3.3160
 N3.3160
N1.1564 
 N3.3159
N3.3160 
A38.3124
A33.5119 
 A33.5124
 A33.5123
A33.5109
A33.5117
A33.5122
A33.5121 
A33.5120
A33.5101
A33.5129
A33.5133
N1.3513
N3.2341
N2.2125
A38.3239
A38.3129
 N1.1304
N1.1807 
N11.1112 
N2.5215 
N1.1563 
N41.9128
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4567
A33.0106
A33.3170 
 N2.2178
A33.5128
A33.0110
A33.0108
A33.0107
A33.0109
N1.3503
N4.1116
N2.5606 
N2.1108
A33.5223
A33.3171
N2.1606
A33.5206
N4.5116
A33.3175
A33.3174
A33.3173
N2.5213
A33.5204 
N3.2341
A33.5203
A33.5201
A38.3210
N3.2610
A33.5225
A33.5225
A33.5216
A33.5221
A33.5220 
N3.3116
N7.1205
N1.6220
N2.2172
N1.1106
N6.6261
A33.5212
N3.4307
N3.4311
N2.1608
N1.6207
N1.6207
N1.1113 N1.1113
N1.1136
N1.1136
N3.2343 N3.2314
A33.5205
N2.1607
 A33.3169
 N2.2178
N3.1707 
N3.1702 
A33.3172 

N3.1702
 A33.5209
 A33.3110
 N2.5154
N4.5119 
A33.5211 
A33.5210 
13294601.z
 ESSO Beacon 2
 Molykote BR 2 plus
 Loctite 222
 90 Nm
 Loctite 603
 Orientation
N3.4507 
 N3.2405
 N3.2405
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* = Wearing parts [ ] = Group ->[ ] = in group
10 13294601.een
8 SPARE PARTS LIST 13.2946.01
13.2946.01 A338/19.0/0.70/UNI/TW A338.0002.01 04/06/98
Item-No. Pcs. Description Dimension Field
[A33.0103] 1 SEALING HOUSING B3
[A33.0104] 1 DIE AND CUTTER SUPPORT C2
[A33.0105] 1 BEARING PICK-UP ATTACHMENT C1
[A33.0106] 1 SEALING HANDLE A5
[A33.0107] 1 ROCKER E7
[A33.0108] 1 GEAR C7
[A33.0109] 1 END COVER E5
[A33.0110] 1 TORQUE LEVER A7
A33.3110 2 TENSIONING PAWL B5
A33.3169 ->[A33.0110] 1 HINGE B6
A33.3170 ->[A33.0110] 1 COUPLER A7
A33.3171 ->[A33.0110] 1 TUBE B7
A33.3172 ->[A33.0110] 1 BOLT B7
A33.3173 ->[A33.0110] 1 ADJUSTING SCREW C7
A33.3174 ->[A33.0110] 1 SEALING SCREW B7
A33.3175 ->[A33.0110] 1 BALL B7
[A33.5101] ->[A33.0103] 1 SEALING HOUSING C3
A33.5105 1 BASE PLATE E3
A33.5109 ->[A33.0104] 1 DIE AND CUTTER SUPPORT C2
A33.5110 *1 CUTTER 0,7 MM D2
A33.5117 1 ROLLER C2
A33.5118 1 PARALLEL PIN D1
A33.5119 2 GUIDE C3
A33.5120 1 ECCENTRIC SHAFT B2
A33.5121 1 EYE C2
A33.5122 ->[A33.0105] 1 BEARING PICK-UP ATTACHMENT C1
A33.5123 1 GUIDE GIB C2
A33.5124 1 GUIDE GIB C2
A33.5125 1 SIDE PLATE E2
A33.5126 1 EJECTOR E3
A33.5127 1 EJECTOR SCREW E3
A33.5128 ->[A33.0106] 1 SEALING HANDLE A5
A33.5129 1 EJECTOR B2
A33.5133 1 STRAP STOP B2
[A33.5201] ->[A33.0107] 1 ROCKER D6
A33.5203 ->[A33.0107] 1 SPACER PIECE D6
A33.5204 1 SEALING WASHER D7
A33.5205 ->[A33.0108] 1 GEAR BODY B5
[A33.5206] ->[A33.0108] 1 WHEEL SHAFT B5
A33.5209 ->[A33.0108] 1 SPUR WHEEL C5
A33.5210 ->[A33.0108] 1 INTERMEDIATE WHEEL D5
A33.5211 ->[A33.0108] 1 TENSION SHAFT D5
A33.5212 ->[A33.0108] 1 BODY BASE D5
A33.5216 *1 TENSIONING WHEEL E6
A33.5220 1 STRAP GUIDE E5
A33.5221 ->[A33.0109] 1 END COVER E5
A33.5223 ->[A33.0110] 1 DRIVER B6
A33.5225 2 SUPPORTING DISK E5+
A38.3123 *1 DIE HALF D2
A38.3124 *1 DIE HALF D2
A38.3129 *1 GRIPPER D4
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* = Wearing parts [ ] = Group ->[ ] = in group
11
13294601.een
A38.3130 1 HOLDER D4
A38.3134 *1 PUNCH D3
A38.3210 1 PIVOT PIN D5
A38.3239 1 STRAP STOP C3
N1.1106 1 SCREW M6 X 20 E4
N1.1113 2 SCREW M5 X 20 B4+
N1.1136 2 SCREW M5 X 45 B5
N1.1304 2 SCREW M3 X 8 E2
N1.1563 1 HEXAGON SCREW M10 X 1 X 38 C4
N1.1564 2 HEXAGON SCREW M10 X 1 X 83 A3
N1.1806 4 SCREW M4 X 10 D2
N1.1807 6 SCREW M5 X 12 A2+
N1.1912 6 SCREW M5 X 16 E1
N1.3503 ->[A33.0110] 1 SOCKET SET SCREW M5 X 12 B6
N1.3513 1 SOCKET SET SCREW M10 X 40 B3
N1.6203 2 SPRING LOCK WASHER M3 E2
N1.6207 4 SPRING LOCK WASHER M5 B4+
N1.6220 1 SPRING LOCK WASHER M6 E4
N1.6503 6 SAFETY WASHER M5 E1
N11.1112 1 SCREW M10 X 1 X 48 E3
N2.1108 1 SECURITY RING E20 A6
N2.1606 ->[A33.0110] 1 SPRING RING 6 MM B6
N2.1607 ->[A33.0110] 1 SPRING RING 20 MM C7
N2.1608 ->[A33.0108] 1 SPRING RING 17 MM C5
N2.2109 2 PARALLEL PIN 8 M6 X 30 D3
N2.2110 ->[A33.0104] 2 PARALLEL PIN 4 M6 X 10 D2
N2.2125 ->[A33.0108] 2 PARALLEL PIN 4 M6 X 20 B4
N2.2147 1 PARALLEL PIN 3 M6 X 10 E2
N2.2172 ->[A33.0109] 2 PARALLEL PIN 5M6 X 30 E4
N2.2178 ->[A33.0110] 2 PARALLEL PIN 3 M6 X 9.2 A6+
N2.4902 2 HAMMER HEAD BOLT 1,85 X 4,76 E1
N2.4906 ->[A33.0106] 1 HAMMER HEAD BOLT 5,31 X 12,7 A4
N2.5154 2 PRESSURE SPRING 0.45 X 3.9 X 7 B5
N2.5213 ->[A33.0110] 1 PRESSURE SPRING 3,3X15,3X115/25,5 C7
N2.5215 1 PRESSURE SPRING 2,25X11,75X125 C4
N2.5606 1 CUP SPRING 40X20.4X1 A6
N3.1702 ->[A33.0110] 2 BALL 4 MM B6
N3.1707 ->[A33.0110] 1 BALL 6 MM A7
N3.2314 ->[A33.0108] 1 NEEDLE CASE B4
N3.2341 ->[A33.0103] 1 NEEDLE BUSH C4
N3.2341 ->[A33.0107] 1 NEEDLE BUSH D6
N3.2343 ->[A33.0108] 1 NEEDLE BUSH B4
N3.2405 ->[A33.0107] 1 INNER RACEWAY D5
N3.2405 ->[A33.0109] 1 INNER RACEWAY E5
N3.2610 ->[A33.0107] 1 PACKING RING E6
N3.3116 ->[A33.0109] 1 SLIDE-BEARING E5
N3.3159 ->[A33.0103] 2 SLIDE-BEARING A3
N3.3160 ->[A33.0104] 2 SLIDE-BEARING D1+
N3.3160 ->[A33.0105] 1 SLIDE-BEARING C1
N3.4307 ->[A33.0108] 3 THRUST RACE D4
N3.4311 ->[A33.0108] 1 THRUST RACE 17 X 30 X1 C5
N3.4507 ->[A33.0107] 1 NEEDLE FREE WHEELING D7
N4.1116 ->[A33.0106] 1 GRIP BALL B5
13.2946.01 A338/19.0/0.70/UNI/TW A338.0002.01 04/06/98
Item-No. Pcs. Description Dimension Field
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* = Wearing parts [ ] = Group ->[ ] = in group
12 13294601.een
N4.5116 ->[A33.5206] 1 PROTECTION PLUG B5
N4.5119 ->[A33.0108] 1 PROTECTION PLUG D6
N4.9145 1 LABEL <<A338>> E1
N41.9128 1 ADHESIVE LABEL E2
N6.6261 ->[A33.0108] 1 O-RING D4
N7.1205 ->[A33.0109] 2 SEALING DISK E4
13.2946.01 A338/19.0/0.70/UNI/TW A338.0002.01 04/06/98
Item-No. Pcs. Description Dimension Field
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13A3380002.en_teil2
9 SEAL CONTROL
A regular control of the seal is necessary. The seal can be checked visually and the person controlling can
easily judge the quality of the seal. When checking the seal the following illustrations must be compared.
Correct seal
A correct seal must be conform to the illustration. This means that the depth with which the upper strap hooks
into the lower one must be 1 – 1.5 mm (0.039 – 0.059”) in min. and must not exceed 2 mm (0.079”). The upper
strap must be sheared clean and the cutter must not leave scratch marks on the lower strap.
Incorrect seal (the sealing mechanism is adjusted too high)
This stamped seal is not deep enough and the upper strap is not sheared.The tensile strength of this seal is
insufficient and the strapping must be taken away from the package. The tool must be readjusted immediately
(see SEAL ADJUSTMENT).
Incorrect seal (the sealing mechanism is adjusted too low)
This stamped seal is too deep and the lower strap is scratched by the cutter. Although the tensile strength of
this seal is sufficient the strapping must be taken away from the package because of the scratched lower strap.
The tool must be readjusted immediately (see SEAL ADJUSTMENT).
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14 A3380002.en_teil2
10 SEAL ADJUSTMENT
The sealing- and cutting depth of the sealing mechanism and the cutter can be adjusted by using a hexagon
key N4.1411 (size 5 mm) and turning the adjustment screw infinitely variable. The hexagon key N4.1411 is
supplied with the tool.
Sealing depth is excessive
Turning the adjustment screw in a clockwise
direction reduces the sealing depth.
Sealing depth is insufficient
Turning the adjustment screw in a counter
clockwise direction increases the sealing depth.
11 TENSION FORCE ADJUSTMENT
For readjustment use allen key N4.1411 5 mm
wide. Turning clockwise increases, and turning
counterclockwise resp. decreases the tension
force by approx. 1375 N per score.
The tension force using low tensile (soft) strap is
generally lower due to its higher friction.
Attention! Never adjust to scale
100Nm (tension force will be
excessive).
After repairs of the torque lever, it has
to be readjusted .
This is carried out by using an allen key 2.5mm
and a torque gauge with square drive socket
wrench 10mm.
Procedure:
Adjust the torque lever at 80 Nm on its scale.
Provide the torque gauge (hex. socket of the tension shaft onto the gauges hex. insert) with the complete
torque drive assembly.
Turn the adjusting screw until the torque lever disengages under a load of 80Nm.
N4.1411
Torque Tension force
80 Nm ~ 5500 N
60 Nm ~ 4125 N
40 Nm ~ 2750 N
20 Nm ~ 1375 N
N4.1411
2,5 mm
80 Nm
60 Nm
40 Nm
100 Nm
20 Nm
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15A3380002.en_teil2
12 CLEANING
In case of heavy dirt and when painted straps are used the punch, dies, gripper and feed-wheel must be
cleaned regularly.
Normally it is sufficient to blow out the parts with the help of an air gun.
13 EXCHANGE OF WEARING PARTS
Exchange of the feed wheel and the gripper
• Disassemble cylinder screw in the end plate.
• Lift the rocker and remove end plate, strap guide, supporting disk and feed wheel from the tension shaft.
• Unscrew holder and remove it together with the gripper from the base plate.
• Fitting in opposite order.
Important!
The fastening screw for the holder has to be secured with LOCTITE 222.
Observe assembling position of the feed wheel
Gripper
Holder
Strap guide
Supporting disk
Feed wheel
Rocker
End plate
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16 A3380002.en_teil2
Exchange of the punch, the dies and the cutter
• Disassemble the ejector and the ejector screw.
• Unscrew the strap stop and pull the upper ejector together with the strap stop out of the tool.
• Unscrew the side plate and disassemble both guide gibs.
• Slightly lift the sealing lever and remove bearing pick-up attachment, link and the die- and cutter piston from
the sealing body.
• Clean all parts and replace the worn ones.
• Fitting in opposite order.
Important!
Bearing areas and guides have to be greased.
The fastening screws for the punch and the dies have to be secured with LOCTITE 222.
Punch
Strap stop with upper ejector Die and cutter piston with link
Bearing pick-up attachment
Guide gibs
Cutter
Ejector
Dies left and right
Ejector screw
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