ASTEC KPI-JCI User Manual

Vertical Shaft Impactor
78
Wear Parts
Feed Disc
On a rotor, the center bolt
accomplishes this.
However, casting tolerances
prevent a close tolerance
t, and serious accelerator
vibration can occur if the feed
disc is not centered.
Feed Disc - Rotor Assembly
Feeddisc-upto107lbs.
Feed Disc - Table Assembly
Feeddisc-upto150lbs.
The feed disc should never be
allowed to wear completely
through as serious damage
can be caused to crusher
components.
Feed disc wear is evident by a
rounding off of its outer edge
immediately in front of the
impeller shoe. While wear is
normal, rotating the feed disc
approximately 30 degrees
clockwise will present a fresh
corner. Properly maintained,
the feed disc allows for optimum
feed distribution and optimum
material trajectory to the anvils.
Improperly maintained, a worn
feed desk can result in:
• “Slotting” of the impeller
shoes or carbides.
• Accelerated wear on at
table liners.
• A poor wear pattern
• Overall reduced crushing
efciency.
When replacing a feed disc
make sure it is centered on the
accelerator.
On a table, the bevel on
the impeller shoes helps
accomplish this.
NOTICE
Feedring-upto110lbs.
When the feed disc is replaced,
torque the center bolt to 199
ft.lbs. (1500 models) or 480
ft.lbs. (2500 and 4500 models).

ASTEC KPI-JCI Specifications

General

Brand	ASTEC
Model	KPI-JCI
Category	Construction Equipment
Language	English