Fromm P356 Guide

OPERATION MANUAL / SPARE PARTS LIST
PNEUMATIC
PLASTIC STRAPPING TOOL
MODEL P356
49.0374.01
CE Declaration of conformity
We declare that the machine P356
is in conformity with the following standard or
standardised documents:
98/37/EEC
FROMM Holding AG
Hinterbergstrasse 26
CH - 6330 Cham
14.05.2004
R.Fromm
Director
49037401.en/MAS/© 03.07

2
INDEX PAGE
1 SAFETY INSTRUCTIONS 3
2 TECHNICAL DATA 4
3 CHART OF TYPES 5
4 WARRANTY CONDITIONS AND LIABILITY 5
5 APPROPRIATE USE 5
6 INSTALLATION 6
6.1 Compressed air connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3 Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.3.1 Preselecting of strap tension and tensioning speed . . . . . . . . . . . . . . . . . . . . . 8
6.3.2 Adjusting the welding time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 OPERATING ELEMENTS 9
8 OPERATION 9
8.1 Feeding the strap around the package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8.2 Inserting the strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.3 Tensioning the strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.4 Sealing the straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.5 Removing the tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8.6 Seal - Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9 EXCHANGE OF WEARING PARTS 12
9.1 Exchange of tensioning wheel and grippers . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9.2 Exchange of cutter, welding stop gripper and welding gripper . . . . . . . . . . . . 13
9.3 Adjustment of the coupler P35.0146 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
10 PNEUMATIC SCHEMATIC 15
11 SERVICE 15
12 CLEANING 15
13 SPARE PARTS LIST 49.0374.01 21

3
P356000101enT1.man
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.
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.
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.
Dispensing strap
Only dispense strap from a dispenser specifically designed
for strap.
Tuck strap end back into dispenser when not in use.
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.

4P356000101enT1.man
2 TECHNICAL DATA
Description of the tool
The tool model P356 has been designed to strap packages with plastic strapping. The plastic strapping is fed
around the package manually or in combination with a strap feeder. The straps are inserted in the tool,
automatically tensioned, sealed by friction welding and separated.
Tool size without suspension bracket with suspension bracket
Length: 335 mm / 13.2" 393 mm / 15.5"
Width: 107 mm / 4.2" 107 mm / 4.2"
Height: 137 mm / 5.4" 280 mm / 11"
Weight: 5.4 kg / 11.9 lbs 5.8 kg / 12.8 lbs
Sound information
The A-weighted equivalent continuous sound level at the work place of the machine operator is
typical 79 dB (A).
This value was determined according to DIN 45 635 T3 (11.85).
Vibration information
The weighted effective value of the acceleration typically amounts to less than 2,5m/s2.
This value was determined according to DIN EN 28 662 T1 (01.93).
Strap material
Strap qualities: PET (Polyester) plain or embossed.
Use only plastic straps recommended by your sales shop (name and address
on the rear of the operation manual).
Strap dimensions: 16.0 - 19.0 mm / 5/8 - 3/4" x 0.4 - 1.35 mm / .016 - .053" (see chart of types).
Use only plastic straps with the correct strap dimensions for your tool.
Strap tension with steady air pressure of 5.5bar / 80 psi.
Tensioning force*: Adjustable from 800 - max. 3700 N / 180 - max. 830 lbs.
Tensioning speed*: approx. 85 - 160 mm/s / 3.3 - 6.3 inch/sec.
Joint strength*: approx. 75% of the tensile strength of the plastic strap.
* The value depends on the strap quality.
Air pressure
Joining thread / Air tube: G 1/4 / Min. inside diameter = 9 mm
Air pressure: The maximum air pressure allowed is 6.0 bars / 87 psi.
The standard working air pressure is 5.5 bar / 80 psi.
Air unit: min. G 3/8
Air line in front of air unit : min. 1/2"
Air flow of air unit: min. 570 Nl/min / 21 cu.ft/min with a maxim pressure drop of 0.5 bar / 7.25 psi.
Air consumption
Tensioning: approx. 8 Nl / 0.30 cu.ft uncompressed air per second.
Sealing: approx. 8 Nl / 0.30 cu.ft uncompressed air per second.
Oil for air unit: HL / CL ISO VG 10

5
P356000101enT1.man
3 CHART OF TYPES
4 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.
5 APPROPRIATE USE
The tool model P356 has been designed to strap packages with plastic 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.
Item No. Model Strap width Strap thickness
49.0363 P356/16/0.65-1.05 16.0 mm / 5/8"0.65 - 1.05 mm / .026 - .041"
49.0364 P356/16/1.06-1.35 16.0 mm / 5/8"1.06 - 1.35 mm / .042 - .053"
49.0373 P356/19/0.40-0.64 19.0 mm / 3/4"0.40 - 0.64 mm / .016 - .025"
49.0374 P356/19/0.65-1.05 19.0 mm / 3/4"0.65 - 1.05 mm / .026 - .041"
49.0375 P356/19/1.06-1.35 19.0 mm / 3/4"1.06 - 1.35 mm / .042 - .053"

6P356000101enT1.man
6INSTALLATION
6.1 Compressed air connection
The compressed air is to be connected to the tool preferably by a quick disconnecter (G1/4).
An air-unit consisting of a separator for water and dirt, a pressure regulator with a manometer and a lubricator
must be installed within a range of 15 ft / 5 meters. The compressed air must be free from dirt, rust and
moisture.
Possible connections at the tool
Factory produced the connection for the
air supply is prepared from the top.
According to requirement the connection
can also be assembled to the rear end of
the tool.
6.2 Accessories
Use only parts and accessories mentioned in the operating instruction.
Using other parts or accessories can cause injuries to you and other persons.
Wearing plate
As an option, tool can be equipped with a
wearing plate to protect base from
excessive wear on abrasive package
surfaces (like bricks, concrete blocks etc.).
The complete wearing plate can be
ordered together with the fastening screws
under item number P35.0148.
P35.0148 P35.3303
N1.2221

7
P356000101enT1.man
Suspension of tool
It is possible to suspend the tool on a spring loaded balancer using the suspension bracket P35.0147 which is
supplied with the tool. The suspension bracket has been designed in such a way, that the tool can be used for
all three working positions.
N1.5105
 P35.2073
 N2.5623
P35.3301
P35.2069 
N1.2110
P35.2068
 P35.2067
 N6.6212
P35.0147

Mobilux EP2

8P356000101enT1.man
6.3 Adjustments
6.3.1 Preselecting of strap tension and tensioning speed
Do not adjust the tensioning force too high.
If the tensioning force is higher than the tensioning strength of the strap,
the strap will tear while the tensioning.
Tensioning force and tensioning speed can be
preselected at the control head.
Loose lock screw;
press the control head against the tool
and turn it.
Turning clockwise increases;
turning counterclockwise decreases the
tensioning force and the tensioning speed
resp..
Tight lock screw.
6.3.2 Adjusting the welding time
Depending on the size and quality of the strap,
different welding times are required.
The welding time can be adjusted at the
adjusting crew.
Turning clockwise increases,
turning counterclockwise decreases the
welding time.
Control head
Lock screw
Adjusting screw
welding time

9
P356000101enT1.man
7 OPERATING ELEMENTS
8OPERATION
8.1 Feeding the strap around the
package
The strapping is fed around the package as
illustrated.
Warning! The plastic strap which will be
welded must be free from oil, grease and other
dirt.
Dirty plastic straps can't be welded correct!
Tensioner valve lever
Handle lever
Sealer valve lever

10 P356000101enT1.man
8.2 Inserting the strap
Pull up the handle lever firmly with your right
hand.
Insert the two straps well aligned on each other
into the strap guide using your left hand.
Release the handle lever.
8.3 Tensioning the strap
Press down the tensioner valve lever and then
release it again after the desired strap tension has
been reached.
The tensioning operation can be interrupted and
restarted at any time.
The tool must carry out a balance movement
while tensioning.
Therefore:
- Don’t hinder the tools movement in the signed direction.
Disregard:
- The feed wheel slips on the strap without tensioning it.

11
P356000101enT1.man
8.4 Sealing the straps
Press down and release immediately the sealing
valve lever.
The plastic strap is welded and cut off from the strap
coil at the same time.
After the expiration of the adjusted sealing time,
the seal has to cool down approx. 2 sec.
During that time, the tool can not be removed from
the sealed strap.
After the expiration of the adjusted cooling time the
welding jaw and the seesaw levers move upwards.
Now the tool can be removed from the strap.
8.5 Removing the tool
Pull up the handle lever,
pull the tool right / backwards and off the strapping.
8.6 Seal - Control
A regular control of the seal is necessary. The seal can be examined visually.
Make a seal, peel it apart and examine it as follows:
Correct seal
The seal must be completely welded over the whole width of the strap
on a length of ca. 19 mm. Minor quantities of fused plastic may
overflow on sides.
Welding time too short
The plastic strap is not welded over the whole width of the strap. The
seal efficiency is insufficient.
Warning! Straps with insufficient seal strength must be removed from
the package!
Adjust the welding time (see 6.3.2).
Welding time too long
If the welding time is too long the straps are overheated. The fused
plastic overflows on both sides of the straps. The seal efficiency is
affected.
Warning! Straps with insufficient seal strength must be removed from
the package!
Adjust the welding time (see 6.3.2).
Seesaw lever

12 P356000101enT1.man
9 EXCHANGE OF WEARING PARTS
Before any maintenance work always disconnect the tool from the air supply.
9.1 Exchange of tensioning wheel and grippers
Disassembling
• Unscrew end cover P35.3211 and remove it;
• Remove the torsion spring N2.5823;
• Remove the tensioning body;
• Remove the tensioning wheel together with the bearing N3.1172 from the tool;
• Unscrew the holders and remove them from the tensioning body;
• Remove the grippers from the tensioning body.
Assembling
Assembling in opposite order. Observe the following:
• Lubricate the internal toothing of the tensioning wheel with Molykote BR 2 plus.
Observe the position of the tensioning wheel. The direction of rotation of the
tensioning wheel is marked at the front of the tensioning wheel (see drawing).
Observe the position of the grippers (see drawing).
Holder
N1.6505
N1.1909
N2.5823
N3.1172 P35.3211
N1.6503
N1.1904
Tensioning wheel 
Grippers
N1.6504
N1.1925
Holder
Tensioning body
 Molykote BR2 plus

13
P35.2064
Tensioning body
P35.3222
P32.1710
Guide case
P35.0146
N2.1121
N2.1118
P32.1212
P32.1029 
6 x N3.1702 
P32.1027 
P32.1511 
P32.1028 
P35.3211
P35.3128
P35.3214 
N2.5282
P32.1035 
N2.1121
N2.5823
 Tensioning wheel
P32.1032
P35.3126
P35.0138
 P32.1510
 Klüber Isoflex Alltime SL2
 Mobilux EP2
 Klüber Isoflex NBU 15
 Loctite 222
N1.6504
 N1.1305
N2.1121
P32.1035 
 Molykote BR2 plus

14 P356000101enT1.man
Assembling
Assembling in opposite order. Observe the following:
When inserting the piston pay attention to the proper seat of the piston in the
thrust piece.
Pay attention to the fitting position of the cutter (see drawing).
Safe the screws N1.1305 with Loctite 222.
Lubrication
• Lubricate the rocker and the bolt P32.1028 in the area of the welding jaw with Klüber Isoflex NBU 15.
• Lubricate the balls, ball cage and the running surface of the balls on the welding gripper with Klüber Isoflex
Alltime SL2.
• Lubricate the cutter and the driver with Mobilux EP2.
9.3 Adjustment of the coupler P35.0146
The coupler is adjusted in our works.
In case of replacing the seesaw lever, the coupler or the lever body, the coupler has to be readjusted.
Procedure as follows:
The tool is disconnected from the air supply.
The coupler is fitted into the tool.
• Loosen screw N1.1553.
• Displace thrust piece P35.3223, so that it touches
the two seesaw levers without moving them.
• Retighten screw N1.1553.
Control:
The thrust piece must touch the seesaw levers (X1).
Both guide pins must sit on the welding stop
gripper(X2).
Coupler
Thrust piece
N1.1553
Seesaw lever
Welding stop
X1
X2
Guide pin
gripper

15
P356000101enT1.man
10 PNEUMATIC SCHEMATIC
11 SERVICE
Servicing and repair work must only be carried out by authorized service centres.
If the tool breaks down or does no longer operate do not disassemble it. Send it fully assembled to the local
service center (see name and address on the rear page of this manual). Use original packing.
The pneumatic plastic strapping tool P356 is a high performance tool. We strongly recommend you to have it
serviced by an authorized service shop after 12 months at the latest if used one shift per day. If used two or
more shifts per day the tool has to be serviced after a shorter period of time.
12 CLEANING
Clean strap gripping parts from strap abrasion regularly using compressed air (do not use any mechanical tool
for cleaning).
When cleaning the surface of the tool do not use water or aggressive solvents!
1 Tensioner valve
2 Tension force control valve
3 Tensioning motor
4 Exhaust silencer
5 Welding valve
6 Welding motor valve
7 Welding time valve
8 Welding motor
9 Cooling time valve
10 Welding cylinder
11 Welding signal valve
12 Turn off valve
13 Cooling signal valve
14 Welding turn off valve
a Valve lever for tensioning
b Valve lever for welding
P
P

16 49037401.z
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C D
23456
 Mobil Velocite No. 6  Mobilux EP2  Molykote BR2 plus  Klüber Isoflex Alltime SL2  Klüber Isoflex NBU 15  Loctite 603  Loctite 222  Orientation
P35.0131 N3.1174
N3.1174
P35.3109
P35.3107
N2.2403
N2.2402
5x P35.2022 
5x P35.2022 
5x P35.3108 
P35.3106
P35.2023
N6.6237 
P35.2027
P35.2026 
P35.3110
N1.1818
P35.3101
P35.0129
N21.2101
N3.1172
N3.1172
P35.3201 
N3.2107 
P32.1712 
P35.3203 
P35.3211
N3.2356
P32.1724
N21.2102
N1.2216
P35.0145
P35.0128
N4.9159
N2.4902
N1.6503
N1.1904
N1.1925
N1.6504
N3.3172
P32.1050 
P32.1216
N2.3342
P35.0143
P35.3102 
N2.2189
N1.6505
N1.1909
N1.2216
N2.5823
P32.1723
P35.3204
N3.3150
P32.1229
P32.1228
P32.1720 P32.1721
P32.1719

17
49037401.z
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8 9 10 11 12
P35.0128
P35.0133 N6.6235 
P35.2032 
N6.6235 
N6.6268 
N6.6163 
P35.2031 
P35.2029 
P35.0134
P35.3113 
N3.1160
N3.1178
P35.3112 
N2.1610
N1.2112 
P35.3105
P35.3104 
N3.2105
P35.0130
P35.0132
N2.2145 
P35.3103 
N3.1157
N5.2702
P35.3111
N2.1805
N1.6344
N2.5822
P32.1051
P35.3101
P35.3116 N6.6121  N6.6211  N6.6211  N6.6121  N6.6211  N6.6121  N2.5291  P35.3115  P35.3114  P35.3114 
N21.2108
P35.0135
P32.1011
N6.6282 
N1.6331
N1.6331
N3.4509
P35.3118
P35.3119
N6.6244 
P35.3120
(N3.3174)
N2.5259 
N3.1702
P35.2038
P35.1344 
N1.3128
N1.6504
N1.1936
N1.1935
P35.3117

18 49037401.z
A13
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14 15 16 17 18
 Mobil Velocite No. 6  Mobilux EP2  Molykote BR2 plus  Klüber Isoflex Alltime SL2  Klüber Isoflex NBU 15  Loctite 603  Loctite 222  Orientation P35.0128
P35.0137
P35.0137
N1.6331 
N3.1159 
P32.1037 
N1.6331 
N2.2190
P35.3121 
N2.2485
P35.2009
P35.2008
P32.1012 
P32.1023 
N3.1134
P35.3123
N3.2347
P32.1510 
N3.2347
N3.1134
P35.0136
P35.0149
P35.0146
N1.1553
N1.6504
P35.3223
N2.1121
P32.1251
P35.3220
N2.2193
P35.3215
P35.3221
P32.1210
P32.1210
P32.1710
N2.5178
P35.3219
P35.3218
P35.3222
N1.6503
N1.1945
N1.1929
N41.9127
N2.5282
P35.3214
P32.1029
P32.1027 
6x N3.1702 
P32.1511
P32.1035 
N2.1121
N2.1121
P32.1035 
P32.1032
P32.1028 
N2.2187
N2.2110
N1.6504
P35.3127
P35.3128
P32.1011
P35.3101
N6.5693
P35.2065
N6.6280
N6.6280 N6.6117
P35.3129 P35.3130
N3.1711  N2.5219
P35.2005  P35.3132  N2.5152  P35.3133 
P35.3131
P35.3135  P35.3134 
P35.3136
N1.1820
N2.5157
P35.3124
N2.5276
N6.3407
N1.5602
N61.6206
P35.3126
N1.1818
N42.9147
N41.9129
N2.4902
P35.0138
N1.1305 

19
49037401.z
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20 21 22 23 24
 Mobil Velocite No. 6  Mobilux EP2  Molykote BR2 plus  Klüber Isoflex Alltime SL2  Klüber Isoflex NBU 15  Loctite 603  Loctite 222  Orientation
P35.0139
P35.0140
P35.0141
P35.0142
P35.3101
N1.1813
N2.1118
P32.1212
P35.3137
P35.2064
N2.1606
P35.2026
P35.2027
N3.1174
P35.2023
N2.2402
P35.3107
5x P35.2022 
5x P35.3108 
5x P35.2022 
P35.3138
N3.1174
P35.3109
N2.2403
P32.1023
N2.2101
P35.2043
N2.1613
N2.5176
P35.2045
N6.6121
N6.6211
P35.2046 
N6.6211
N6.6211
P35.2045
N6.6121
N6.6121
P35.3139
N2.1613
P35.3140
N2.2114
P35.3157
N6.6117
P35.3144
N6.6117
N2.5292
N6.6185
P35.3155
P35.3156
N6.6291
N6.6291
P35.3158
N6.6211
P35.3154
N6.6211
N6.6117
P35.2055
N6.6211
N6.6117
P35.3153
P35.3152
N6.6147
P35.3151
N6.6211
N6.6117
N2.5281
P35.3150
N6.6211
N6.6117
P35.3149
N6.6298

20 49037401.z
A25
B
C D
26 27 28 29 30
 Mobil Velocite No. 6  Mobilux EP2  Molykote BR2 plus  Klüber Isoflex Alltime SL2  Klüber Isoflex NBU 15  Loctite 603  Loctite 222  Orientation
P35.3137
P35.0142
P35.3141
P35.3147
P35.3159
P35.3145
P35.3146
N2.5280
N6.6117
P35.3144
N6.6117
N6.6291
P35.3143
N6.6117
N6.6291
P35.3142
P35.3158
P35.2062
N6.6269
N6.6269
P35.2057
N6.6157
P35.2058 
N2.5224
N6.6269
P35.2059
N6.6283
P35.2060
N2.1301 P35.2061
N3.1702
P35.3148
N1.6506
N11.1191
N1.1106
(N6.6501)
N6.5137
N5.2702