ABM Katana User manual

High Quality German Guitar Parts
ABM
Fine-Tuning Tremolo

ABM
SAFETY INSTRUCTIONS
Quick Guide
5400
5400
2
!
!
SAFETY INSTRUCTIONS:
- Please take care about your fingerps. String ends are really sharp.
- A so cover between strings and guitar body protects the varnish while maintenance.
- A pair of nippers belong to each guitar case. Do not use scissors for cung strings.
- Please protect your eyes with safety glasses, especially while changing strings.
- Do not use the guitar machine heads once the locking screws of the locking nut are
ghtened. Otherwise the strings may snap suddenly.
- Please ghten all locking screws soly for a long use. Aer first resistance while
screwing a „10 minutes turn“ clockwise is normally enough.
- If woodwork is required to install the hardware, we assume that the work has been
carried out professionally and that there is knowledge of the tools required.
- If you suffer from a nickel allergy, please ask us before purchasing an item how we can
help you in this regard.
- Spare Parts: All parts of the ABM 5400 tremolo are exchangable, like the knife edge or
the tremolo arm socket. Please ask us for the course of acon before you remove parts.
Maybe special tools are required (knife edge).
This symbol, wherever it appears, alerts you to important operaon and
maintenance instrucons in the accompanying literature. Please read the
manual and the safety instrucons before mounng and operang the
tremolo!
It is always a pleasure to install new hardware. Please take a lile me for
the safety instrucons and the ABM 5400 Guide before you start with the
installaon. If you do not have the necessary assembly and woodwork
skills, please hire an experienced guitar technician or luthier to do the job.

5400
3
Series 5400 - Katana
Guide
ABM
INTRODUCTION
ABM 5400 ADVANTAGES
Welcome to the new ABM 5400 Guide!
Learn more about this outstanding product.
If you have further quesons or suggesons please
contact us by email: [email protected]
We wish you a pleasant me reading!
TABLE OF CONTENTS
100%
- A tonal experience with lot of punch, but clarity, singing
harmonics and sustain due to the "One Block Design"
and "Saddle Locking".
- No more string break based on "Flat string Locking"
- Individual saddle height & intonaon adjustment
- Large palm rest area due to the low profile design
- "Plug In and Play" tremolo arm
- All components are milled from solid brass and steel
- A real sustainable product as all parts are exchangable.
Page 2 Safety Instrucons
Page 3 Introducon
Page 4 Overview ABM 5400
Page 5 Overview ABM 7050-R2
Page 6 Overview ABM 7050-R2
Page 7 Playing/Tuning
Page 8 String Replacement
Page 9 Saddle Sengs
Page 10-13 Mounng/FAQ
Page 14 Exploaded Drawing
Page 15 Parts List
Page 16 Technical Drawing
Page 17 The 5400 Katana Story

Type: Fine-Tuning-Tremolo, compable to „Floyd Rose Original“ dimensions*/**
Any kind of neck radius can be used by independent saddle height adjustment!
String-Spacing: 10,7mm / overall 53,50mm
Stud-Spacing: 74mm to 74,5mm
Studs: Fine threaded metric M7x0,75m Stud with 25,50mm length
Bushings M7x 0,75mm Thread, outline diameter 10mm, length 20,75mm
Finishes:
Tremolo-Block: ABM5400 comes with a 37mm steel block to arrange a wide compability.
Packing Unit:
Accessories:
Fine-Tuning-Tremolo „KATANA“
TREMOLUTION
5400
4
ABM
T remolo, pair of posts & anchors, tremolo arm, 5 high tension tremolo springs,
one spring claw with mounng screws, 2 allen keys. Please note that the
locking nut is not included. Please choose model 7050-R2 or 7050-R3.
c= Chrome, b= Black-Chrome, g= Gold
**Important Note:
5400
The ABM 5400 Tremolo is directly compable to the „Floyd Rose Original“
roung diagram which represents the needed cut outs of the guitar body
including the spring cavity for a standard guitar body depth of 44,45mm.
Beside the standard guitar body depth you may need a different block height
(32 or 42mm). The standard block height of ABM 5400 is
Blocks: 32mm height: TBblock5400-32 St (Steel), TBblock5400-32 (Brass),
42mm heigth: TBblock5400-32 St (Steel), TBblock5400-32 (Brass).
Nuts: 7050-R2 locking nut, (Brass), 41,3mm, 10" Radius
7050-R3 locking nut, (Brass), 42,8mm wide, 12" Radius
67
9,6
14,4
74
10
10
6
34,5
32,5
4
68,5
50
11,5
*
We hereby declare that ABM Guitar Parts has got no relaonships with Floyd D.Rose, or the companies and trademarks
like Floyd Rose, Schaller or Fender.

Type/Radius: Locking-Nut, compable to SCHALLER* R2 ouline dimensions
Radius: 9,5" = 241,30mm
Width: 1,58" = 41,30mm
Finishes: Chrome, Black-Chrome, Gold
Packing Unit:
Accessories: SRB1 , String Retainer Bar, for guitars with a low headstock angle,
ABM 7050-R2
Locking-Nuts
5400
5
ABM
Two M4 threaded mounng screws, two mounng woodscrews,
S3 and S2,5 Allen keys.
Hints:
ABM Lock-Nuts are milled from Bell Brass, not from weak diecast!
Advantages: Great tone and long lasng acon without rust.
Truss Rod Cavity: Yes, compable to „FENDER Bullet“ truss rod nuts too.
5,55
14,3
28,2
6,44
15,6
9
9,2
41,30
Length 1-7/8" = 47,67mm, Screw-Spacing 1-1/8" = 28,58mm
We recommend to gthten the string lock screws soly for a long life.
Please imagine a clock face. A „10 minutes turn“ clockwise is enough.
You may also damage the strings with too much torque.
Mounng: We recommend to use the metric screws for clamping the
nut to the neck perfectly. If you just use the woodscrews from above
we recommend to glue the nut body in place addionally.
NEW
7050-R2
DURABLE & SONIC EXPERIENCE
*
We hereby declare that ABM Guitar Parts has got no relaonships with Floyd D.Rose, or the companies and trademarks
like Floyd Rose, Schaller or Fender.

Type/Radius: Locking-Nut, compable to SCHALLER* R3 ouline dimensions
Radius: 12,0" = 304,80mm
Width: 1-11/16" = 42,80mm
Finishes: Chrome, Black-Chrome, Gold
Packing Unit:
Accessories: SRB1 , String Retainer Bar, for guitars with a low headstock angle,
ABM 7050-R3
Locking-Nuts
DURABLE & SONIC EXPERIENCE
7050-R3
ABM
Two M4 threaded Mounng Screws, two Mounng-Woodscrews,
S3 and S2,5 Allen Keys.
Hints:
ABM Lock-Nuts are milled from Bell Brass, not from weak diecast!
Advantages: Great tone and long lasng acon without rust.
Truss Rod Cavity: Yes, compable to „FENDER Bullet“ truss rod nut too.
Length 1-7/8" = 47,67mm, Screw-Spacing 1-1/8" = 28,58mm
We recommend to gthten the string lock screws soly for a long life!
Please imagine a clock face. A „10 minutes turn“ clockwise is enough.
Mounng: We recommend to use the metric screws for clamping the
nut to the neck perfectly. If you just use the woodscrews from above
we recommend to glue the nut body in place addionally.
NEW
15,01
29,05
5,55
42,8
9,9
7,24
8,5 15,4
5400
6
*
We hereby declare that ABM Guitar Parts has got no relaonships with Floyd D.Rose, or the companies and trademarks
like Floyd Rose, Schaller or Fender.

ABM
PLAYING & TUNING
Quick Guide
PLAYING/TUNING
Plug In the tremolo arm 14 .
You can adjust its mobility
by the adjustment screw 15 .
For guitar tuning please use
the tuner knobs 1 .
If the tuner knob`s tuning
range is used up, please
unghten the string locking
screw of the locking nut 20 .
Please turn the tuner knob 1
upwards to an upper posion
to get enough adjustment
range again.
Then tune the guitar by the
machine heads based on the
guitar`s head stock. Finally
fix the strings with the string
locking screws 20 of the
locking nut again.
To prevent sudden string
break do not ghten the
machine heads of the headstock
without loosening the locking
screws of the locking nut!
Please ghten all string lock
screws soly for a long life.
Aer the first resistance
while screwing a
„10 minutes turn“
clockwise is enough!
Worthwhile hints
5400
For a beer understanding we assigned the single components
to funconal groups like a traffic light.
Green: Parts could be used while playing or tuning
Yellow: Parts are used for string replacement
Red:
Please read the safety
instrucons of page 11 before you handle your tremolo!
Parts are used for saddle sengs
5400
7
!
!
20
String Locking Screw
Knife
Edge
Tremolo
Block Knife Edge
Screw
String Saddle
Saddle
Insert
Height
Adjustment
Screw Insert
Locking
Screw
String Locking
Screws
Tuner Knobs
Tuning Lever
Tremolo Arm
Saddle Spring
Bridge
Body
1
2
8
9
10
11
12
13
14
Side Locking
Screws
3
Side Locking
Screws
3
6
8
5
7
13
14
15
16
17
18
16
Tremolo Arm
Intonaon
Screw
Spring Steel
Sheet
Tremolo Arm
Bushing
Tremolo Block
Tremolo Arm
Adjustment
Screw
Tuning
Lever
13

ABM
STRING REPLACEMENT
Quick Guide
5400
STRING REPLACEMENT
Please declamp the string
locking screw of the locking
nut to set the string free.
Then remove the string
from the machine head
which is located on the
guitar head plate.
Please release the string
locking screw of the tremolo
unit to set the string free.
Pull or push the string out
of the tuning lever. It works
much beer with a string
that is cued to a plain end.
Set the new string to the
tuning lever again and
forward it over the tremolo
saddle & locking nut to the
machine head and wind
and tune the string with it
again.
Please bring the tuner
knob to a high posion to
assure enough tuning range.
Tighten the locking screw
of the locking nut again.
Tighten the locking screw of
the tremolo and tune the
guitar by the tuner knob .
A
B
C
D
E
F
G
H
7
20
2
5400
8
For a beer understanding we assigned the single components
to funconal groups like a traffic light.
Green: Parts could be used while playing or tuning
Yellow: Parts are used for string replacement
Please read the safety
instrucons of page 11 before you handle your tremolo!
Red: Parts are used for saddle sengs !
D
AB
C
20
String Locking Screw
2
String Locking Screw
E
H
F
2
7
G
E
20

ABM
SADDLE SETTINGS
Quick Guide
5400
For a beer understanding we assigned the single components
to funconal groups like a traffic light.
Green: Parts could be used while playing or tuning
Yellow: Parts are used for string replacement
Red: Parts are used for saddle sengs
Please read the safety
instrucons of page 4 before you handle your tremolo!
SADDLE SETTINGS
5400
9
3
5
7
7
8
The 5400 saddle contains
the string saddle with ist
saddle insert .
Before any changes for
intonaon, height or string
spread are made, please
loosen both side locking screws .
Please unghten the insert
locking screw for height
or string spread adjustments.
Then you can move the
saddle Insert up to +/-
0.35mm lateral for string
spread or you use the
Height Adjustment screws
to follow the neck radius
properly. Aer this work you
lock the insert locking screw
again.
Intonaon Seng
Please loosen the side Locking
screw before you use the
intonaon screw for
moving the saddle back or
forward to find the right
posion.
Aer changes are made
please ghten the side locking
screw again for best
tremolo acon.
If all work is done, lock it
again. So your changes are
„stored“.
16
3
3
6
6
!
String
Saddle
Saddle
Insert
Height Adjustment Screw
Insert Locking Screw Side Locking Screw
Side Locking Screw
3
5
7
8
6
3
16
Intonaon Screw
!

ABM
MOUNTING TIPS & FAQ
Quick Guide
5400
MOUNTING TIPS & FAQ
5400
10
!
If you are not familiar with a tremolo
installaon please consult a guitar tech or
luthier for assembly. The installaon
requires knowledge and tools.
A tremolo spring installer assure a secure
tremolo spring exchange. An underlay
between tremolo plate and guitar body
holds the tremolo in a floang posion with
loaded tremolo springs (for quick string or
spring exchange, intonaon sengs, etc.).
The ABM 5400 is compable to the „Floyd
Rose Original“ roung template. In other
words: If your guitar has got a „Floyd Rose
Original“ tremolo mounted, the ABM 5400 is
a perfect retrofit.
We deliver the tremolo with a 37mm high
steel block. This standard is suitable for
guitars with a body depth of 44,45mm with
floang mount operaon and tremolo
pocket. If your instrument shows a „Floyd
Rose Classic“ roung template without a
tremolo undercut you may need the block
with a height of 42mm. Guitars with a
thinner body may need a block height of
33mm.
You can sll order ABM 5400 with a 32 or
42mm block. In this case please leave a
message while the ordering process.
All parts of the ABM 5400 tremolo are
exchangable, like the knife edge or the
tremolo arm socket.
Tremolo arm: The play of the arm can be
adjusted as desired. The adjustment screw
is located on the rear area of the tremolo
plate next to the intonaon screws. This
lock screw adjusts the play between the
arm and the DELRIN sleeve built into the
tremolo block. This can also be replaced
aer wear.
Saddle lock screws: You find them le and
right beneath the saddles in both
sidewalls of the tremolo. As soon all
saddles adjustments are made, please
ghen both lock screws parallel to lock
the saddles equal from both sides.

ABM
MOUNTING TIPS & FAQ
Quick Guide
5400
MOUNTING TIPS & FAQ
5400
11
!
We use a very sharp knife edge which
adapts to the profile of the mounng bolt
in the first few weeks. Please do not be
surprised if semicircular notches appear on
the bolt support area of the knife edge.
That is the way to achieve a perfect joint.
The knife edge itself is posioned and
secured in the slot by two grub screws
which are located on the underside of the
tremolo plate.
For this purpose, the screws have a conical
p which lateral surface presses the knife
edge into the slot when the screw is
screwed in.
Aer the first resistance when ghtening,
connue turning for a max. of 5-10 minutes
(compared with a clock face).
It is not about screwing the screws in over
the enre height of the base plate. This is
not even possible due to the mechanism.
When adjusng the intonaon, it is best to
use a long-bladed screwdriver so that we
do not damage the varnish of the guitar.
During this maintenance work, we
recommend covering the area below the
intonaon screws with a cover for
protecon. Please always losen both saddle
locking screws prior to intonaon sengs.
For saddle height adjustments please
always loosen the frontsided saddle insert
locking screw before, so that the saddle
insert can be freely adjusted in height.

ABM
MOUNTING TIPS & FAQ
Quick Guide
5400
MOUNTING TIPS & FAQ
5400
12
!
My guitar goes out of tune while using the
tremolo:
1.Please check first whether the string lock
screw is ghtened, as with dive bombs the
string moves in the tuning finger and may
not return to their original posion again.
2. Then please review whether the two
saddle lock screws aached to the side of
the tremolo base plate are ght. These
prevent movement of the saddles.
3. Please check that all saddle insert screws
are ghtened too.
4. Other reasons that can affect tuning
stability significant:
The tuning stability of a guitar requires the
combinaon of quality components and
their professional adjustment.
Please always use the original ABM
accesories like posts, sleeves, tremolo
springs, spring claw and mounng screws.
They are carefully matched for a perfect
common funcon.
Are the locking screws of the Lock nut
ght? Regarding standard nuts: Are the
strings fixed at the machine heads well?
Are the string notches of the nut ok? Or
does the string stuck there?
In connecon with a locking tremolo, either
a locking nut should be used or a well
notched quality nut in combinaon with
high quality lock tuners.
Unfortunately, machine heads oen
contradict the goal of ensuring tuning
stability, since the strings can loosen on the
tuner axis during dive bombs or do not
snap back into the exact former posion.
You also find so many guitar tuners on
electric guitars that have too much play in
their axis, gear or knob, so that detuning is
unavoidable, if you do not use a locking
nut. It is always worth invesng in good
guitar machine heads.

ABM
MOUNTING TIPS & FAQ
Quick Guide
5400
MOUNTING TIPS & FAQ
5400
13
!
Maybe, there are neck problems to be
solved: Mounng screws have come loose
on a bolt neck, so that the neck moves a bit
while using the tremolo and do not come
back to ist original posion again.
Some instruments with screwed neck show
a too large neck pocket, so the neck can
move out of the string axis sidewards. This
is a typical issue on 3 point neck assembly.
It has also happened that a standard non
dual truss rod was not ghtened, but with
a loose nut and thus did not give the neck
the necessary stability while dive bombs.
It is just as important that the sleeves for
mounng bolt assembly are firmly seated
in the guitar body. These holes in the guitar
body normally have an undersize of approx.
0.2 to 0.3 mm regarding the outside
diameter of the sleeve. It can also happen,
that the original holes in instruments have
widened due to the string tension. Then it
helps to close and glue the hole with a
wooden dowel and to drill it again with the
correct size.
Electrical and magnec issues:
Please always ground the tremolo system.
This is done by soldering the ground wire to
the ABM tremolo spring claw, which is
nned to accept the solder easily.
The distance between the string and the
pickup should not be too small. But why?
The magnec field of the pickup is then too
strong and the strings cannot vibrate freely.
The tone with ist harmonics and the
intonaon either suffer as a result.
Valuable notes on changing strings:
Aer winding up they like to be stretched
before they are ready to play. This is a
standard procedure, especially important
for tremolo guitars. You can do this by
stretching the string between your thumb
and your index and middle fingers. You do
this mulple mes, connuing the process
down the length of the whole string. A
praccal tool can help you: The „String
Stretcha“ from StewMac* does this job.
In between please tune the strings again
and repeat the procedure above 3 to 4
mes unl the strings reliably hold the
tension of the tremolo springs.
Please always make sure that the tremolo
base plate is set parallel to the guitar body
top. If necessary, you increase or decrease
the tremolo spring tension, using the
adjusng screws of the spring claw, so that
the plate "floats" in a parallel posion to
the guitar top. So you get the best up and
down bending acon.
If you always play the same string gauge,
the tremolo springs will adjust to the string
tension and changing strings with the same
gauge again will be much faster.
*
We hereby declare that ABM Guitar Parts has got no relaonship with StewMac.

ABM
Exploded view with spare part numbers
Quick Guide
5400
5400
14
K5400 (Bridge Plate)
GSTI3x12A2 (Saddle
Locking Screw)
GSTI3x12A2
(Saddle Locking Screw)
Mk1n (Knife Edge)
TBarm1
(Tremolo Arm)
RE6 (Saddle Insert, please
refer to parts list)
SH5400 (Tuner Lever)
F4,3x10/15/20 (Saddle Intonaon
Springs)
FB5400 (Spring Steel Sheet)
GLK2,5x30n
(Intonaon Screw)
GLSK3x8A2 (Block Screw)
5400Achse n (Tuner Lever Axis)
TBblock5400-37 St
(Tremolo Block)
Tbbush1 (Tremolo Arm Bushing)
GSTI3x6A2 (Saddle insert Screws)
GSTI3x3A2
(Insert Locking Screws)
GSTIS3x3A2
(Knife Edge Screw)
RS5400
(Fine
Tuner
Screw)

ABM
Parts List
Quick Guide
5400
5400
15
PARTS LIST ABM 5400
Tremolo Bridge Plate: K5400
Tremolo Block: TBblock5400-37 /
Fine Tuner Screw: RS5400
Saddle: GR19
Saddle Insert: RE6mdb - Insert for discant string, middle
RE6mbb - Insert for bass string, middle
Spring Steel Sheet: FB 5400
Tremolo Arm Bushing: Tbbush1
Tremolo Spring: 7845h
Spring Claw: 7841
Knife Edge: Mk1n
Tuner Lever: SH5400
Tuner Lever Axis: 5400Achse n
Intonaon Screw: GLK2,5x30n
High Adjustment Screws: GSTI3x6 (for low & med. Saddle Inserts)
GSTI3x8 (for high Saddle Inserts)
Knife Edge Screw: GSTIS3x3
Insert Locking Screw: GSTI3x6
Side Locking Screw: GSTI3x12
Spring Claw Screw: HLSK4,2x45z
Tremolo Arm Adj. Screw: GST3x6
String Locking Screws: GSTI3x3
Tremolo Plate/Block Screw: GLSK3x8
Saddle Intonaon Springs: F4,3x10 (2), F4,3x15 (2) F4,3x20 (4)
Allen Key (all M3 screws): 790015ST (SW 1,5 Swiss Tools)
Allen Key (Mounng Bolts): 790030 (SW 3mm)
String Locking Screw: GZI4x8b (Hexagon Cylinder Head Screw)
Mounng Screw: GLI4x18A2 (Hexagon Lens Head Screw
Allen Key (Lock Screws): 790030 (SW 3mm)
All items that are plated carry the following short cuts aer the product
code, like: b = black chrome, c= chrome or g = gold. An example: P7050b.
TBblock5400-32
Tremolo Arm: TBArm1
Stud Set for Mounng: TSB (2 pieces including bushing)
RE6ldb - Insert for discant string, low
RE6lbb - Insert for bass string, low
RE6hdb - Insert for discant string, high
RE6hbb - Insert for bass string, high
PARTS LIST ABM 7050:
Locking Nut Corpus: K7050-R3 or -R2
String Locking Plate: P7050
7841 Spring Claw 790015ST Allen Key
F4,3x10 Saddle
Springs
HLSK4,2x45Z
Spring Claw
Screws
790030 Allen Key
7845H Tremolo Springs
TSB2

ABM
DIMENSIONS
Quick Guide
5400
5400
16
10
6
34,5
32,5
4
68,5
50
11,5
67
9,6
14,4
74
10

ABM
THE 5400 KATANA STORY
Quick Guide
5400
17
* We hereby declare that ABM High Quality German Guitar Parts GmbH has got no relaonship
companies FLOYD ROSE or SCHALLER. „Floyd Rose“ and „Schaller“ are with Floyd D. Rose, the
trademarks of other companies.
One day in 2010 we brainstormed about how to evolve the classic locking tremolo. Certainly, the Floyd
Rose design is almost perfect and has remained almost unchanged since the late 1970s. But one thing
we have learned at ABM over the last 74 years: Beer is the enemy of good.
First we searched for a more musical material. It should combine a strong basic tone with a lively
overtone structure and long-lasng sustain. We achieved this by milling the complex bridge body from
a single piece of Bell Brass. The assumpons came true and the sustain even increased directly when
playing the tremolo. It was a pleasure to hear how vividly the overtone behavior acted, with strong
fundamental turning into harmonic overtones.
Many guitarists don't like the tremolo arm cap nut loosens so easily. So we designed a tremolo arm
mount that reliably holds the arm with an adjustable DELRIN sleeve. Simply "plug in and play".
The string locking on the classic fine tuner tremolo is not ideal either. The strings tear, since they are
bent almost to 90 degrees in the clamping device. That's why we developed a system which locks the
string flat from above. The strings last much longer this way.
Furthermore, we integrated a height-adjustable saddle design into the ABM 5400. So we can emulate
any desired neck radius easily. In addion, each saddle can be conveniently adjusted in intonaon with
a screwdriver.
It is a well-known issue that the adjustment screws of any tremolo tend to shi during play due to self-
oscillaon. The results are detuning and intonaon problems. That's why we added two addional
sideward mounted "Saddle Locking Screws" that lock the saddles firmly in place during play.
It is always important for us to produce sustainable products. Every single component of the ABM
5400 is exchangeable and available as spare part.
Spring 2023: The ABM 5400 Katana received a major update. An extended palm rest for even more
playing comfort as low profile version. In addion, the new version includes a steel block, which offers
more clarity for high-gain sounds. The brass blocks are sll available as accessories too.
Of course, the current 5400 fits any guitar that has a Floyd Rose Original Roung.
All improvements show aenon to detail and feature a high-end product at a very interesng price.
We hope you enjoy the new ABM 5400 Katana!
5400