NOTICE
The rotation speed of the head can be fine tuned
with three different viscous fluid choices to
optimize performance for specific applications;
Slow: BJ 048-S, Medium: BJ 048-M,
Fast: BJ 048-F
Medium viscosity fluid is recommended by
StoneAge for maximized performance and
minimized maintenance. Please contact your
Dealer or StoneAge Customer Service to select
the right fluid for your application.
Figure 19: For Steps 14-15
WGR 101
Shaft
WGR 003
Body
WGR 003
Body
WGR 010
Shaft Seal
WGR 011
Seal Spacer
WGR 009
Front
Bearing
WGR 182
Install Tube
BJ 026
Port Plug
Lip Spring
Side
GREASE
GREASE
GREASE
14. Fill with Fluid (BJ 048-M). Fill the Body with
fluid to the bottom of the chamfer of the
shoulder on the Shaft.
This fluid level height is critical.
15. Spin the Shaft to bleed the Fluid. Attach the
Hex Tool (WGR 183) to a 3/8” drive ratchet
with a 3” extension and insert it into the
internal hex in the end of the Shaft. Rotate
the Shaft slowly in a Counterclockwise
direction to work out all the air bubbles from
the system.
FILL LINE
TECH TIP:
The viscosity of
the fluid is very
thick. Be sure to
take time to allow
all the air bubbles
to come out.
TECH TIP:
Before proceeding; The use of an Arbor Press
and Install Tube (WGR 182) is recommended for
the next three steps.
3/8 Drive
Ratchet and
Extension
WGR 183
Hex Tool
Figure 20: For Steps 16-20
16. Remove the Port Plug furthest from the
Front Nut.
17. Lightly coat the Shaft Seal with grease.
Install the Shaft Seal with the lip spring
facing the center of the Body. It is normal for
the visc fluid to ooze out of the open port.
18. Clean off the excess fluid on the Body and
install the Port Plug.
19. Install the Seal Spacer on top of the Shaft
Seal.
20. Pack and coat every surface of the Rear
Bearing with grease. Install the Rear Bearing
and into the Body on top of the Seal Spacer.
ASSEMBLY
ASSEMBLY
18
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