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ST-D TYPE STRAP TENSIONER
Part No. 257080
TOOL SPECIFICATIONS
STRAP TYPE WIDTH THICKNESS
Dymax, Contrax, Tenax 1/2" (12.7mm) .015"(0.38mm) to .030"(0.76mm)
Refer to Signode Operation, Parts & Safety Manual part number 186006
for additional part removal & replacement details and information.
IMPORTANT - DO NOT DESTROY THIS MANUAL. It is the customer's responsibility to have all operators
and service personnel read and understand this manual. Contact your local Signode representative for
additional copies of this manual.
© Copyright 2003, Signode 286195 Rev. 5/2003
PLEASE NOTE:
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GENERAL SAFETY INSTRUCTIONS - READ THESE INSTRUCTIONS CAREFULLY.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN SEVERE PERSONAL INJURY.
GENERAL CONSIDERATIONS
1. 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 or EN 166.
2. STRAP BREAKAGE HAZARD.
Improper operation of the tool or sharp
corners on the load can result 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.
Failure to place the strap properly around the load or on
an unstable or shifted load could result in a sudden loss
of strap tension during tensioning. This could result in a
sudden loss of balance causing you to fall.
Read the tools operating instructions. 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.
7. WORK AREA
Keep work areas uncluttered and well lit.
8. CUTTING TENSIONED STRAP
Using claw hammers, crowbars, chisels, axes or similar
tools will cause tensioned strap to fly apart with
hazardous force. Use only cutters designed for cutting
strap. Read the instructions in the cutters manual for
proper procedure in cutting strap. Before using any
Signode product read its operation and safety manual.
Several combinations of strap, seals and tools can be used
with this tensioner. Use the correct Signode products for your
application. If you need help contact your Signode
Representative.
SAFETY PROCEDURES FOR TOOL OPERATION
1. Before using this tensioner, read all the instructions in
this Operation, Parts and Safety Manual.
2. NEVER HANDLE OR SHIP ANY LOAD WITH IMPROPERLY
FORMED SEALS. Misformed seals may not secure the
load and could cause serious injury. Inspect the tool for
worn and/or damaged parts. Replace tool parts as
needed.
If seals are not being properly formed:
A. Ensure that the tool's operating instructions are
being followed before applying another strap.
B. Cut the strap off and apply another.
! Using strap not recommended for this tensioner can
result in strap breakage during tensioning. Use the
correct Signode products for your application.
3. FALL HAZARD.
Maintaining improper footing and/or balance when
operating the tool can cause you to fall. Do not use the
tool when you are in an awkward position.
4. CUT HAZARD
Always wear protective gloves when
handling strap or sharp parts.
5. TRAINING.
This tool must not be used by persons not
properly trained in its use. Be certain that you receive
proper training from your employer. If you have any
questions contact your Signode Representative.
6. TOOL CARE.
Take good care of the tool. Inspect and clean it daily,
lubricate it weekly. Replace any worn or broken parts.
3. Tuck strap end back into the dispenser when not in use.
MAINTENANCE/CLEANING
Debris accumulated in the teeth of either the feedwheel or the
clutch plug must be removed with a small wire brush. A need
to clean the teeth will become apparent when either the
feedwheel skids on the strap or the lower strap slips on the
clutch plug during tensioning. Apply light machine oil to all
moving parts.
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OPERATING INSTRUCTIONS
Wear safety glasses which conform to ANSI Standard
Z87.1 or EN 166.
Always position yourself to one side of the strap
while tensioning and sealing. Make sure all
bystanders are clear before proceeding. Maintain
proper footing and balance.
1. Drape strap around package. Take-up slack, keeping
straps squarely in line. Hold hand tensioned strap in
position with left hand, grasp the tool in right hand,
squeeze handle to base, thus lifting feedwheel. Fully
insert both straps between feedwheel and gripper plug,
allowing lower strap to extend approximately 1" beyond
gripper plug, as shown. Position rear foot of tool on top
of straps.
2. Stand to one side of the strap line. Tension is obtained
through a continuous up and down motion with the
tensioning handle. At the same time, maintain a constant
upward pressure on the reaction handle, lifting the back
of the base slightly off the package. On initial downward
strokes, do not allow handle to press against base as this
will raise feedwheel and release tensioned strap. Snap
seal on strap directly in front of tool.
3. Hold sealing tool at right angles to strap, resting it
squarely over seal. Seal the tensioned strap by bringing
sealer handles together as far as they will go.
4. Return tensioning handle to rest on the tool by pressing
the handle pawl with thumb. Squeeze handle to base and
remove tool from strap by swinging rear foot out, as
illustrated.
5. With left hand, pull top strap back and at an angle to the
left, holding taut. Place base of tool just ahead of seal,
cutter blade on the strap. Grasp knob of tensioning
handle and slide tool forward to cut the strap. Inspect the
joint to make sure it had been properly formed. Refer to
the sealing tool manual for details regarding the joint.
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ST-D TENSIONER PARTS LIST
KEY QTY. PART # DESCRIPTION
1 1 003489 Handle pawl spring
2 1 003492 Handle pawl
3 1 003493 Handle
5 1 003488 Ratchet gear
6 1 003494 Handle pawl pin
7 1 023964 Feedwheel support pin
8 1 003490 Feedwheel support
9 1 023954 Feedwheel
10 1 003485 Short retaining pawl
11 2 003483 Retaining pawl spring
12 1 003484 Long retaining pawl
13 1 003486 Retaining pawl pin
14 1 004502 SHCS, #10-32 x ¾
15 1 023953 Reaction handle
16 1 003868 Flexloc thin nut, d-24
17 1 003487 Feedwheel shaft
18 1 003478 Bearing
19 1 003479 Feedwheel spring
20 1 023957 Set screw, #10-32 x e (Flat point)
21 1 023965 Set screw, #10-32 x e
22 1 020711 Truarc, #5101-37
23 1 023912 Gripper plug
24 1 023966 Cutter blade
25* 1 023967 FHSS, #10-32 x 5/16
26 1 023952 Base
27 1 183024 Nameplate
28 1 182997 Caution plate
29 1 098228 Protective cover
30 1 003133 Caution plate
31 1 003493 Handle
32 1 306927 Knob
33 1 010057 Roll pin, ¼D x 1-¾LG
34 1 424250 Bushing
35 1 424251 BHCS, 1/4-28 x 1/4
-- 1 023963 Brush
When ordering parts, please show tool model, part number,
and description. All recommended spare parts are underlined
and should be stocked.
* Apply one drop of Loctite #271 (Red) or equivalent, available as Signode Part No. 422796.
NOTE: Keys numbers 8, 34 and 35 can be ordered together as Gear Housing Kit, Signode part No. 424436.
All parts must be periodically inspected and replaced if worn or broken. Failure to do this can affect a
product's operation and can result in personal injury.
CLUTCH PLUG ADJUSTMENT
1. Maintain a clearance of .001 to .005 between the feed
wheel (9) and the gripper plug (23) by adjusting the set
screw (21) as needed. See page 9 for the set screw
location on the tool.
2. Depress the handle (3) to raise the feed wheel support
assembly (8).
3. While the support assembly is raised, turn in the set
screw (21) clockwise, until it bottoms out.
4. Back out the set screw (21) 1 3/4 turns for a general
factory setting. If needed, continue to back out or turn in
the set screw according to the following chart of strap
variations. General factory setting is 1 3/4 turns.
STRAP NO. OF TURNS
502, 504 1 1/2
506 1 3/4
508 2 1/2
1816 1 3/4
1822 2 1/2
814 1 1/2
816, 818 1 3/4
NOTE: As the tool wears, it may be necessary to turn the set
screw (21) in 1/4 to 1/2 turn. This will become apparent if strap
begins to slip in the tool while under tension.
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