Graco LineLazer IV 250SPS Installation And Operation Manual page 13

LL250 Pressurized Bead System Kit 16R962
Assemble Compressor Mounting
and Drive Components
NOTE: Glass bead system and paint guns can be
mounted on either side of sprayer.
1. Turn off unit. Relieve pressure in paint striper and
remove hopper.
2. Locate belt shroud. Loosen four screws (A) and
remove shroud (B).
A
Some units may require that the pulley be replaced. The
older pulley and correct pulley is shown in the figures.
PREVIOUS PULLEY AND COUPLER
332230G
B
ti20518a
ti26671a
LL250 Pressurized Bead System Kit 16R962
NEW PULLEY AND COUPLER
If your unit has the correct pulley installed with the proper
spacing as noted in the following steps you can skip the
pulley installation procedure.
a. Remove old pulley from unit by loosening the
set screws.
b. File any rough spots that are on the pump shaft
key.
c. Slide new pulley on to the pump shaft. Pump
shaft should extend 0.125–0.225 beyond the
face of the pulley. The pump shaft is the pilot for
the coupler adapter.
d. Install belt on pulley. Maintain belt alignment to
inner grove of the clutch pulley.
e. Torque pulley set screws to 58 to 62 in-lb (6.6 to
7 N•m).
3. With belt guard off, install mounting plate coupler
(C) onto pulley (D) with two shoulder screws (E) and
serrated nuts. 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. Torque shoulder bolt to 16 to 18 ft-lb (21 to 24
N•m) to secure mounting plate coupler.
ti26671b
13