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LL250 Compressor Installation
18
332230T
7. Remove hopper. Locate belt shroud. Loosen screw
(A) and lift belt shroud (B).
8. Using a 1/4 in. Allen wrench, remove shoulder bolts
and serrated nuts securing existing coupler plate.
NOTE:
Do
not
use ball end Allen wrenches, as they
may break and become stuck in the set screws.
9. Assure pump shaft extends 0.125-0.225 in.
(3.175-5.73 mm) beyond the face of the pulley. The
pump shaft is the pilot for the coupler adapter. If
necessary loosen set screws on pulley and slide
pulley along pump shaft, torque set screws to
58-62 in-lb (6.6-7 N•m).
NOTE:
Before performing step 14, secure nuts to back
of pulley with piece of duct tape to assist with
installation.
10. Install coupler mounting plate (5) onto pulley with
two shoulder screws (18) and serrated nuts (19).
Position slot on back of pulley up and move
serrated nut with finger to accept shoulder bolt
threads. Tighten shoulder bolt by hand until the
teeth on the serrated nut catch the aluminum on the
fan. Using a 1/4 in. Allen wrench, torque to 16-18
ft-lb (21-24 N•m). Put belt shroud down.
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