Repair manual

CRT Repair Gearbox and Spider
wc_tx000095gb.fm 37
6.3 Spider Removal and Installation
See Graphic: wc_gr001583, wc_gr001580
Removal:
6.3.1 Remove gearbox. See Section Gearbox Removal and Installation.
6.3.2 Loosen blade arms.
For 36" models:
• Remove grease fittings (aa) from spider.
For 48" models:
• Remove stabilizer ring shoulder bolts (v) from arm ends and lift
ring (y) off.
6.3.3 Remove blades by removing mounting bolts (x) from arms.
CAUTION: Blades may have sharp edges.
6.3.4 Remove shoulder bolts (w) from lift ring assembly. Take care not to
move lifting links (qq) unless readjustment is being done.
6.3.5 Remove cotter pin (ff) and pivot pin (gg) from blade yoke (hh), and
remove blade yoke.
6.3.6 Remove plug (dd) from spider. Using a 17mm socket, remove bolt (bb)
and washer (cc). Remove spider from shaft.
6.3.7 Remove key (m) and spacer (o) from gearbox output shaft.
6.3.8 Remove lift ring assembly (ii) from spider (ee).
6.3.9 Repeat for opposite gearbox.
Installation:
6.3.10 Install lift ring assembly (ii) onto spider (ee).
6.3.11 Install spacer (o) and key (m) to output shaft. Apply anti-seize
compound to gearbox output shaft.
6.3.12 Place spider onto output shaft. Take care to align the keyways.
Replace washer (cc) and apply Loctite 243 or equivalent to bolt (bb),
and torque to 102 Nm (75 ft.lbs.). Install plug (dd).
6.3.13 Place blade yoke (hh) under tubes (ll) on lift ring assembly. Install pivot
pin (gg) and install cotter pins (ff).
6.3.14 Replace blade arms.
For 36" models:
• Place arms into spider and install grease fittings (aa).
For 48" models:
• Place stabilizer ring (y) on spider before installing blade arms.
Replace arms into spider. Apply Loctite 243 or equivalent to
shoulder bolt (v) and install into arm. Tighten bolts only enough to
remove play in ring.