Graco RTX-650 Repair Manual page 9

™
RotoFlex II Pump
Reassembly
1. Bend hose (23) so colored dots on hose fittings face
each other and slide hose fittings through hose
bracket (27).
CAUTION
Make sure protective fabric faces outside of hose.
Roller will touch exposed area of pump hose when
pump is in place.
2. Squeeze hose ends together to keep hose (23) and
bracket (27) together and feed pump hose fittings
through holes on front of base.
23
3. Use 3/8 in. socket to tighten screw (36) on hose
bracket (27).
4. Install hopper and tighten hopper fitting on hopper
(1) by hand until snug.
311771D
5. To set pressure, apply petroleum jelly to threads
(41), tighten knob (41) until back of bracket (25) is
approximately 1/2 in. from front of tensioning
bracket (16).
ti3084a
Tighten front spacer (56) until flush to front of ten-
sioning bracket (16). Tighten back spacer (56) 3/8
in. from tensioning bracket.
27
ti8780a
25
To break in new pump, run sprayer dry for no longer
than two minutes.
Replace hose when mud seeps through slots in the
base and leaves material on the floor.
25
16
ti9710a
16
ti9656a
41
ti8787a
9