03524014_ed9
9
6.
For all Models except 1801N or 1841N
, if the Gear
Head Planet Gear Bearing or Bushings (24) must be
replaced, press them from the Planet Gears.
7.
For all Models except 1801N or 1841N
, using internal
snap ring pliers, remove the Spindle Bearing Retainer
(27) from the inside of the Gear Case.
8. Holding the Gear Case, push the output end of the
Spindle (32) to move the Spindle Assembly out the motor
end of the Gear Case.
9. Using a bearing puller, pull the Spindle Rear Bearing (33)
off the rear hub of the Spindle.
10. Using a bearing puller, pull the Spindle Front Bearing (37)
off the front hub of the Spindle.
11. Support the short hub end of the Spindle on the table of
an arbor press and press the Spindle Planet Gear Shaft
(36) from the Spindle. Make certain the Shafts are
pressed out toward the short hub because the holes in
the gear frame of the Spindle are tapered smaller towards
the output end of the spindle shaft.
12. Remove the Spindle Planet Gears (34) from the Spindle.
13. If the Spindle Planet Gear Bearings (35) must be
replaced, press them from the Planet Gears.
Assembly
General Instructions
1. Always press on the
inner
ring of a ball-type bearing
when installing the bearing on a shaft.
2. Always press on the
outer
ring of a ball-type bearing
when pressing the bearing into a bearing recess.
3. Whenever grasping a tool or part in a vise, always use
leather-covered or copper-covered vise jaws.
Take extra care not to damage threads or distort
housings.
4. Except for bearings, clean every part and wipe every part
with a thin film of oil before installation.
5. Check every bearing for roughness. If an open bearing
must be cleaned, wash it thoroughly using suitable
solution and dry with a clean cloth. Sealed or shielded
bearings should not be cleaned. Work grease into every
bearing before installation.
6. Apply a film of O-ring lubricant to every O-ring before
installation.
7. When installing the Planet Gear Shafts (25 or 36),
support the spindle end of the assembly and press the
Shafts in toward the spindle end. The shaft holes through
the web are slightly tapered so that the Shafts have a
tighter fit in the front web.
8. Unless otherwise noted, always press on the stamped
end of a needle bearing when installing a needle bearing
into a recess. Use a bearing inserting tool similar to the
one shown in Dwg. TPD786.
(Dwg. TPD786)
Assembly of the Gearing
1. If the Spindle Planet Gear Bearings (35) were removed
from the Spindle Planet Gears (34), press new Bearings
into the Gears using a needle bearing inserting tool. If
any Gears are damaged, install a complete new set of
Gears. Do not mix old Gears with new Gears in the same
motor.
2. Support the web at the output end of the Spindle (32) on
the table of an arbor press and position a Spindle Planet
Gear with a Bearing in the web. The holes in the webs of
the Spindle are tapered and smaller toward the output
end of the Spindle. Press a Spindle Planet Gear Shaft
(36) through the rear web and Bearing into the front web
until the Shaft is flush with the face of the rear web.
3. Repeat Step 2 with the remaining Spindle Planet Gears
and Bearings.
4. Stand the Spindle, output end upward, on the table of an
arbor press and using a piece of tubing that will clear the
Spindle, press the Spindle Front Bearing (37) onto the
Spindle.
5. Invert the Spindle and without applying pressure to the
Spindle Front Bearing, press the Spindle Rear Bearing
(33) onto the short hub of the Spindle.
6. Apply lubricant to the gearing and shaft and insert the
assembled Spindle, output end leading, into the end of
the Gear Case (28) with the largest opening. Push the
assembly into the Gear Case until the Spindle Front
Bearing seats in the gear case bearing recess.
7.
For all Models except 1801N or 1841N
, use snap ring
pliers to install the Spindle Bearing Retainer (27) in the
groove inside the Gear Case.
8.
For all Models except 1801N, 1801P, 1841N or 1841P
,
if the Gear Head Planet Gear Bearings (24) were
removed from the Gear Head Planet Gears (23), press
new Bearings into the Gears using a needle bearing
inserting tool. If any Gears are damaged, install a
complete new set of Gears. Do not mix old Gears with
new Gears in the same motor.
For Models 1801P or 1841P
, if the Gear Head Planet
Gear Bushings (24) were removed from the Gear Head
Planet Gears (23), press new Bushings into the Gears. If
any Gears are damaged, install a complete new set of
Gears. Do not mix old Gears with new Gears in the same
motor.
9.
For all Models except 1801N, 1801P, 1841N or 1841P
,
support the web at the spline shaft end of the Gear Head
(20) on the table of an arbor press and position a Gear
Head Planet Gear with a Bearing in the web. The holes in
the webs of the Gear Head are tapered and smaller
toward the spline shaft end of the Gear Head. Press a
Gear Head Planet Gear Shaft (25) through the rear web
and Bearing into the front web until the Shaft is flush with
the face of the rear web.
For Models 1801P or 1841P
, support the web at the
spline shaft end of the Gear Head (20) on the table of an
arbor press and position a Gear Head Planet Gear with a
Bushing in the web. The holes in the webs of the Gear
Head are tapered and smaller toward the spline shaft end
of the Gear Head. Press a Gear Head Planet Gear Shaft
(25) through the rear web and Bushing into the front web
until the Shaft is flush with the face of the rear web.
10.
For Models 1801P or 1841P
, insert the Rotor Pinion (21)
into the center of the Gear Head. This must be done
before installing the second Gear in the Gear Head. It
cannot be installed after a second Gear is secured in
position.
11.
For all Models Except 1801N or 1841N
, repeat step 9
with the remaining Gear Head Planet Gear and Bearing
or Bushing.
SHOULDER TO
REGULATE DEPTH
PILOT TO FIT I.D. OF BEARING.
LENGTH OF PILOT TO BE
APPROXIMATELY 1/8” LESS
THAN LENGTH OF BEARING
