Spider CT Repair
wc_tx000553gb.fm 82
7.4 Replacing the Arms
See Graphic: wc_gr003356
The blades can become extremely sharp. Use great care when
replacing the blades.
Disconnect or remove the spark plug to avoid accidentally starting the
engine when turning the trowel blades.
Removal:
7.4.1 Remove the blades. See section Replacing the Blades.
7.4.2 Remove the arm retaining screw (a) and the eccentric adjuster (b) (or
just the shoulder bolt (c)) from the spider (d).
7.4.3 Rotate the arm assembly 180° and slide the arm assembly (e) from the
spider.
7.4.4 Inspect the condition of the grease fitting (f) and the setscrew (g) of the
spider. Replace these components as necessary. When replacing the
setscrew, leave one thread extending outside of the spider.
7.4.5 Inspect the arm for straightness.
• Use the flattest and smoothest surface available and two spacers
(h) of equal size. Place the spacers on the surface. Set the arm
on the spacers so that the two machined surfaces of the arm ride
on the spacers. Measure the distance between the surface and
the pin of the arm in several locations. The measurements (x)
should all be equal.
• If the difference between any of the measurements is more than
1.5 mm (0.062 in.), the arm is not straight; replace it.
Installation:
7.4.6 Coat the arm assembly (e) with a thin film of grease and slide it into the
spider. Slide the flat (i) of the arm past the setscrew (g) of the spider
and then rotate the arm 180°.
7.4.7 Install the arm retaining screw (a) and the eccentric adjuster (b) to the
spider (d). Torque the retaining screw to 41 Nm (30 ft.lbs.).
7.4.8 Install the blades. See section Replacing the Blades.
WARNING
WARNING
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