Fig.1
Railtop to underbody
height 1-1/8"
#
835
#
837
#
836
Railtop to underbody
height 1-5/16"
#
835
#
1835
#
1835
#
1837
#
1836
Centerset Coupler
#
836
#
1836
Medium Offset Coupler
Railtop to underbody
height 29/32"
#
837
#
1837
Large Offset Coupler
G-Scale Couplers shown
ASSEMBLY
IMPORTANT: Before assembling remove burrs or flash
(if any) from all parts. Burnish (polish) all friction bearing
surfaces with #231 Greas-em dry graphite lubricant.
To assemble the coupler follow the illustrations in these
instructions. The gear box lid is not secured with the screw
until it is mounted. Add a “puff” of our #231 Greas-em into
the draft gear box. Make sure the coupler flexes back and
forth freely.
MOUNTING
Use the #829 #1-Scale or #880 G-Scale coupler height
gauge to determine the coupler mounting height.
G-Scale
#835
A: Railtop to Coupler centerline = 1.125"
B: Railtop to car underbody = 1.310" (1 5/16")
C: Trip Pin clearance = .125" (1/8")
#836
A: Railtop to Coupler centerline = 1.125"
B: Railtop to car underbody = 1.125 (1 1/8")
C: Trip Pin clearance = .125" (1/8")
#837
A: Railtop to Coupler centerline = 1.125"
B: Railtop to car underbody = .900" (29/32")
C: Trip Pin clearance = .125" (1/8")
Lid
Coupler
centering
springs
Coupler
Draft gear box
Note: If couplers swing open too far when
uncoupling, lower magnet slightly to correct.
BODY MOUNTED COUPLER WITH SHORTENED
GEAR BOX ASSEMBLY INSTRUCTIONS
2 ea. Couplers, 2 ea. Draft Gear Boxes, 2 ea. Draft
Gear Box Lids, 5 ea. Centering Springs, 1 ea. Knuckle
Spring, 4 ea. 2-56 screws and 4 ea. 2-56 nuts.
Kadee
®
body mounted Couplers with shortened Draft
Gear Boxes are used in special applications where
there is not ample room for the Kadee
®
#830 or #820
body mounted Coupler with standard Draft Gear Box.
The G-scale & #1-scale couplers are available in three
variations as shown in Fig.1
Use the #837 or #1837 Coupler for installation when
the mounting surface is very low and requires using the
coupler having the greatest offset. If alterations to the
car are required, they should be done as carefully and
accurately as possible. For maximum performance, it
is important that the Coupler be mounted at the correct
height, & directly on the cars centerline. #835, #836
& #837 G-scale & #1835, #1836 & #1837 #1-scale
Couplers do not swing as far as the #830 or #820
body mounted Coupler, so they are most effectively
operated on a track with a larger radius.
Please read through instructions carefully and
completely before proceeding.
#1-
Sca
le
#18
35
A: R
ailt
op t
o Cou
ple
r cen
ter
lin
e = 1.0
62" (
1 1/1
6")
B: R
ailt
op t
o car u
nde
rbo
dy = 1
.31
0" (
1 5/1
6")
C: T
rip P
in c
lea
ran
ce = .
125
" (1/
8")
#18
36
A: R
ailt
op t
o Cou
ple
r cen
ter
lin
e = 1.0
62" (
1 1/1
6")
B: R
ailt
op t
o car u
nde
rbo
dy = 1
.12
5 (1 1
/8"
)
C: T
rip P
in c
lea
ran
ce = .
125
" (1/
8")
#18
37
A: R
ailt
op t
o Cou
ple
r cen
ter
lin
e = 1.0
62" (
1 1/1
6")
B: R
ailt
op t
o car u
nde
rbo
dy = .
900
" (29
/32
")
C: T
rip P
in c
lea
ran
ce = .
125
" (1/
8")
Hav
ing
sele
cte
d t
he K
ade
e
®
Cou
ple
r bes
t sui
ted f
or yo
ur
app
lic
atio
n, t
urn c
ar o
ver a
nd p
lac
e Cou
ple
r with D
raf
t
Gea
r Box i
n pos
itio
n, d
ire
ctly o
n the c
ar c
ent
erli
ne. L
ook
for o
bst
acl
es w
hic
h mig
ht p
rev
ent G
ear B
ox f
rom l
ayi
ng fl
at
in p
osi
tio
n. (
NO
TE
: The p
rot
rud
ing E
uro
pea
n sty
le b
um
per
cus
hio
n w
hic
h so
me
LG
B™
car
s ha
ve, m
ust
be
rem
ove
d
for p
rop
er c
lea
ran
ce. P
ulli
ng s
tra
igh
t out a
nd r
em
ovi
ng h
alf
may b
e eno
ugh o
r it s
hou
ld b
e cut o
ff a
s clo
se t
o the c
ar a
s
pos
sible
). I
t mig
ht b
e hel
pfu
l t
o h
old
the
Cou
ple
r A
ssem
bly
in p
lac
e & che
ck d
ist
anc
e fro
m cen
ter o
f Cou
ple
r to t
op o
f
rai
l usi
ng t
he a
ppr
opr
iat
e cou
ple
r hei
ght g
aug
e. O
nce yo
u
hav
e est
abl
ish
ed t
his m
eas
ure
men
t, yo
u can d
ete
rm
ine i
f
you m
ust s
him G
ear B
ox d
ow
n or c
ut t
he u
nde
rbo
dy t
o rai
se
the C
oup
ler D
raf
t Gea
r Box
.
If C
oup
ler m
oun
tin
g sur
fac
e is u
nev
en, o
r too h
igh f
rom t
he
tra
ck, m
ake o
ne o
r mor
e pla
stic s
him
s to s
upp
ort t
he C
oup
ler
Ass
em
bly
. In m
any c
ase
s, yo
u can p
lac
e shi
ms o
n, o
r
bet
wee
n, t
he c
ent
er s
ills a
nd e
nd s
ills o
f the c
ar u
nde
rfr
am
e
to p
rov
ide a s
olid b
ase f
or t
he G
ear B
ox. T
em
por
aril
y mou
nt
shi
ms, t
hen s
et D
raf
t Gea
r Box a
sse
mbl
y in p
lac
e and m
ark
loc
ation
of mo
unti
ng h
oles
on sh
ims
. R
emo
ve sh
ims
and
dril
l
and t
ap f
or 2
-56 s
cre
ws i
n the m
ark
ed l
oca
tio
ns. R
em
oun
t
shi
ms
in t
hei
r or
igi
nal p
osi
tio
n, t
his
tim
e usi
ng
scr
ew
s to h
old
them
solid
.
NOT
E:
Whe
n usin
g met
al s
cre
ws i
n pla
stic
, tap
pin
g of t
he h
ole i
s not
req
uire
d. A
fte
r dril
lin
g a 5/6
4" h
ole
, the s
cre
w will s
elf-
tap
.
If C
oup
ler m
oun
tin
g sur
fac
e is t
oo l
ow
, the u
nde
rfr
am
e mus
t
be c
ut t
o rai
se t
he C
oup
ler t
o the p
rop
er h
eig
ht. C
are
ful
ly
lay o
ut t
he a
rea t
o be c
ut s
o the G
ear B
ox w
ill b
e lev
el,
cen
ter
ed a
nd a
t the c
orr
ect h
eig
ht. I
t may b
e bes
t to r
em
ove
mos
t of t
he m
ate
ria
l with a c
his
el o
r sm
all s
aw. l
eav
ing fi
nis
h
mat
eria
l whi
ch c
an b
e car
efu
lly r
em
ove
d with a fi
ne fi
le u
ntil
des
ire
d fit a
nd d
ept
h is a
chi
eve
d. P
lac
ing s
him
s bet
wee
n
the
tru
ck
bol
ste
r an
d th
e ca
r bo
dy
bol
ste
r to
rai
se
the
car
is
an a
lte
rna
tiv
e to c
utti
ng t
he c
ar b
ody u
nde
rfr
am
e for s
om
e
cars
.
The C
oup
ler A
sse
mbl
y can n
ow b
e scr
ew
ed i
nto p
lac
e. A
n
alte
rna
tiv
e to t
app
ing
the m
oun
tin
g ho
les i
s to d
rill
3/3
2"
hol
es t
hro
ugh a
nd u
se 2
-56 s
cre
ws a
nd n
uts t
o sec
ure t
he
Dra
ft G
ear B
ox. T
he m
eta
l scr
ew
s can b
e cut t
o the r
equ
ire
d
len
gth w
ith a fi
ne s
aw. B
efo
re c
utti
ng, s
cre
w on a s
upp
lie
d
nut
, so t
hat b
y rem
ovi
ng i
t afte
r the c
utti
ng, t
he n
ut w
ill s
erv
e
to c
lea
n up t
he t
hre
ad e
nds
.
COU
PLE
R O
PE
RA
TIO
N
TO C
OU
PLE -
Sim
ply p
ush c
ars t
oge
the
r unt
il k
nuc
kle
s byp
ass e
ach o
the
r
and
loc
k in
to p
osi
tion
.
FO
R D
EL
AYE
D U
NCO
UP
LIN
G -
1) S
top w
ith t
he c
oup
ler
s ove
r an u
nco
upl
er a
nd b
ack u
p
slig
htly w
ith
the
cou
ple
rs
stil
l ov
er
the u
nco
upl
er, a
llo
win
g
sla
ck t
o occ
ur b
etw
een c
oup
ler
s. 2
) Pul
l for
war
d slig
htly
.
Cou
ple
rs a
re n
ow i
n the d
ela
yed p
osi
tio
n. 3
) Bac
k up,
pus
hin
g the c
ar(
s) t
o the d
esi
red l
oca
tio
n. D
o not p
erm
it
sla
ck t
o dev
elo
p bet
wee
n cou
ple
rs. 4
) Pul
l for
war
d, l
eav
ing
the c
ar(
s) w
her
e des
ire
d. C
oup
ler
s aut
om
atic
ally r
etu
rn t
o
nor
mal c
oupl
ing
pos
ition
.
Use K
ade
e
®
Gre
as-
em
, the d
ry l
ubr
ica
nt r
eco
mm
end
ed f
or
use w
ith a
ll K
ade
e
®
Magn
e-Ma
tic
®
cou
ple
rs.
Gre
ase
-em
will
not a
ttr
act t
he d
irt a
nd d
ust t
hat g
um
s up t
he i
nsi
de o
f cou
ple
rs
lik
e oil, g
rea
se o
r oth
er l
ubr
ica
nts w
ill. U
se o
ur #
829 #
1-S
cal
e
or #
880 G
-S
cal
e Hei
ght G
aug
e to c
hec
k for t
he c
orr
ect c
oup
ler
hei
ght a
nd t
rip p
in c
lea
ran
ce. T
he N
.M
.R
.A
. sta
nda
rd f
or
cou
ple
r hei
ght i
s the c
ent
erli
ne o
f cou
ple
r is 1 1
/16
” (1.
062
5”)
for #
1-S
cal
e & 1 1/8
” (1.
125
”) G
-S
cal
e.
Not
e: W
e inc
lud
e ext
ra k
nuc
kle s
prin
gs. T
he R
epl
ace
men
t
Knu
ckl
e Spr
ing u
sed o
n Kad
ee
®
#1-
Sca
le c
oup
ler
s are s
old a
s
the
#87
5 (#
819
-82
8 co
upl
ers
) or
#18
75
(17
00
& 18
00
ser
ies
cou
ple
rs) K
nuc
kle S
prin
g. T
he K
nuc
kle S
prin
g use
d on K
ade
e
®
G-S
cal
e cou
ple
rs a
re s
old a
s the #
860 K
nuc
kle S
prin
g.
For
Del
aye
dA
ctio
nU
nco
upl
ing
use
our
#8
42
Unc
oup
ler
,
#84
4 Por
tab
le U
nco
upl
er, o
r our #
840 U
nco
upl
er m
oun
ted
in L
GB t
rac
k.
Kad
ee
®
cou
ple
r conv
ers
ion l
ist & c
oup
ler c
onv
ers
ion
s are
on t
he K
ade
e
®
web s
ite f
or yo
ur c
onn
iva
nce
.
ww
w.k
ade
e.c
om/c
onv/
con
vpl
.ht
m
673 Aven
ue C,
White City, OR 97503
-1078
©2009, Kadee
®
Quality Products Co.
012909
Made & Assembled Entirely
in the U.S.A.
Quality Products Co.
WARNING:
CHOKING HAZARD - Small Par
ts
Not for c
hildren under 14 year
s.
C
B
A
