1-800-255-5387 • www.premier-mfg.com
premier manufacturing company
Page 1
THE FIRST NAME IN QUALITY COUPLINGS
BEFORE GETTING STARTED
:
► This procedure should only be performed by a
qualified mechanic.
► Tools required: Snap ring pliers, flat-bladed screw
driver, 1/8” allen wrench, 1 1/4” socket, small
hammer.
►
CAUTION
: When removing and replacing snap rings
the appropriate snap ring plier tools are necessary.
Do not attempt removal or replacement without the
correct snap ring plier tools. In addition, use caution
when removing and replacing snap rings – Do not
over-expand them as damage could result. Also,
when assembling a snap ring into position - Make
certain that the snap ring is fully seated into the
groove.
► Safety glasses are required for all of the following
procedures.
► Prior to disassembly, familiarize yourself with the
location of all the various parts in the coupling. This
will assist in the assembly process.
► See the attached Image Reference Section to
identify the various product parts as well as the noted
positions (i.e. TOP, BOTTOM, FRONT & BASE) of
the coupling body. This will assist in the assembly
process.
DISASSEMBLY
1) As stated above, take a few moments to view the
coupling’s components and their respective positions,
prior to proceeding with disassembly.
2) Place the coupling on a flat work surface, with
mounting base down, pintle hook pointing away from
you with the handles on the right side. Remove the
891P Pin from the 891 Handle.
3) Place the coupling’s latch system in the opened
position by rotating the 896 Handle counterclockwise
until it stops. While holding the 896 Handle in the
maximum rotation position, grasp and rotate the 891
handle counterclockwise to full rotation, then release
896 Handle. The 896 Handle should hold the 891
Handle from rotating back to its previous position.
4) Remove one of the 894Z-1 Snap Rings that secure
the 894 Pin. While holding the 892 Hook, push the
894 Pin out. This will allow for removal of the 892
Hook from the bottom access hole in the coupling.
If the 894 Pin is stuck, use a brass pin or other soft
material to tap it out. Do not strike any components
with steel pins or hammers.
5) Measure the wear area on the pintle horn of the
892 Hook. If the wear is at or exceeds 20% of the
cross section, the coupling is to be considered Out of
Service.
6) Keep clear of the 891 Handle’s rotational space (as
it will release quickly) and rotate the 896 Handle
counterclockwise until the 891 Handle assembly is
released.
7) Prior to further disassembly, position the coupling
(see Image #2, Fig. 2) with the topside facing down
onto work surface and view the latch & spring
components in particular, noting their respective
positions. This will be helpful for proper reassembly.
8) Reposition the coupling with mounting base down
pintle hook if in place would be pointing away from
you, and the handles are on the right side, as
previously described. Remove the 387 Locknut
which secures 891 Handle.
9) Using a brass or other soft material as a punch, tap
on the center of the threaded end of the 891 Handle,
to free it from the tapered seats in the 893 Pawl and
remove it from the coupling body. Note: When the
handle is removed; the 893 Pawl, 893A Spring, and
891C Bushing are also free to be removed.
10) Remove the 275-50 Snap Ring from the end of the
896 Handle.
11) Position coupling body with the topside facing down
onto work surface (see Image #2, Fig.2 bottom view).
Remove the 895C set screw that secures the 895
Latch to the 896 Handle. Grasp 896 Handle and
890R
Coupling
890R & 890CR
SERVICE GUIDELINES
