Oerlikon Torque-Hub CW18 Series, Service Manual

Page: 47 / 72

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1. Place Hub-Spindle Subassembly, spindle flange end down.
2.
Preheat bearing heating oven to 250°F.
3.
Install Thrust Spacer (2) into counter bore of Spindle (1A).
4. Once oven has reached 250°F, place Planet Gear Sets (3A) into oven and leave in for 15 to
20 minutes. Do not leave gears in oven for more than 20 minutes, as metallurgical damage
can occur if gears reach 250°F. Damage can occur before gears discolor.
5. Place Hub-Spindle Subassembly on bench.
6. Remove Planet Gears (3A) from oven and immediately push one Planet Gear (3A), starting
with large radius on bore of Cylindrical Roller Bearing (3B), onto each planet post of Spindle
(1A) until bearing hits shoulder of planet post on Spindle (1A). If Planet Gear gets stuck on
post before bearing hits shoulder of planet post, immediately press bearing the rest of the
way on using T174699 pressing tool. Keep Planet Gears Sets (3A) together during
assembly. One set per each Spindle (1A).
NOTE: Do not beat planet gears onto spindle posts with bar stock or hammer.
CAUTION: Safety glasses must be worn during these next steps.
7. Install Retaining Ring (3C) on each planet post of Spindle (1A).
8.
Install the O-ring (5) from between the Housing (1G) and the Ring Gear (4/6).
9.
Place Ring Gear (4/6) into Housing Spindle Subassembly with spline end of Ring Gear (4/6)
towards Cover (6) ends of Housing (1G).
10.
Install Input Carrier Subassembly into Ring Gear (4/6) with Intermediate Sun Gear (12)
facing down.
11.
If applicable, install Sun Gear (7) into input carrier planet gear mesh.
12.
Align pipe plugs (1U) to proper location per print and install Cover Subassembly (6A) onto
Housing (1G).
13.
Apply Loctite 243 to bolts (27) and install them into Housing (1G) through Ring gear (4/6)
and Cover Subassembly (6A).
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