Repair manual

Gearbox and Spider CRT Repair
wc_tx000095gb.fm 40
6.4 Lift Ring Disassembly and Assembly
See Graphic: wc_gr001583, wc_gr002447
Disassembly:
6.4.1 Remove gearbox. See Section Gearbox Removal and Installation.
6.4.2 Remove spider. See Section Spider Removal and Installation.
6.4.3 Lift ring assembly (ii) from spider.
6.4.4 Clamp assembly securely in vise and remove the lift cap (mm) by
unthreading.
6.4.5 Remove seal ring (nn) and bearing holder (oo). Press bearing (pp)
from bearing holder.
Assembly:
6.4.6 Press bearing (pp) into bearing holder (oo).
6.4.7 Apply anti-seize to threads and bearing area of lift ring (ii).
6.4.8 Slide bearing holder and bearing onto lift ring.
6.4.9 Thread lift cap (mm) onto ring (ii) and tighten.
6.4.10 Slide tubes (kk) onto bolts (ll). Apply Loctite 243 or equivalent to
threads and thread into bearing holder (oo). Do not overtighten as
tubes should rotate freely.
6.4.11 Install lift assembly onto spider.
6.4.12 Replace spider. See Section Spider Removal and Installation.
6.4.13 Replace gearbox. See Section Gearbox Removal and Installation.
Lift Link Adjustment (blade arm):
6.4.14 Set trowel on a flat surface. Install new blades for adjustment.
6.4.15 Turn blade pitch controls until blades are one-half pitch.
6.4.16 Wacker recommends using an angle gauge to check and adjust blade
angle (1).
6.4.17 Check the angle of each blade by placing the gauge along the front
edge of the blade.
6.4.18 If adjustment is needed, remove shoulder bolt (w) and turn link (qq) in
to increase or out to decrease blade angle.
Note: All blades must be set at the same angle for correct operation.
6.4.19 Once all blade angles have been set, apply Loctite 243 or equivalent
to shoulder bolt threads and tighten bolts.
Alternate Lift Link Adjustment method:
6.4.20 Set trowel on a flat surface. Install new blades for adjustment.
6.4.21 Turn blade pitch controls until blades are at one-half pitch.