Graco SaniForce 515, Instructions For Use Manual

Page: 17 / 28

Service
3A1973L 17
Reassembly
1. Install the diaphragm assembly on one end of the
shaft (105) as follows:
a. Install the o-ring (15) on the shaft bolt (14).
b. Install the fluid side diaphragm plate (23) on the
bolt so the rounded side faces the diaphragm
(20).
c. Install the diaphragm (20). Make certain the
side marked AIR SIDE faces the center hous-
ing.
d. On PTFE models only, install the backer on the
bolt. Make certain the side marked AIR SIDE
faces the center housing.
e. Install the air side diaphragm plate (25) so the
rounded side faces the diaphragm (20).
f. Screw the bolt into the shaft (105) hand tight.
2. Grease the length and ends of the diaphragm shaft
(105), and slide it through the housing.
3. Assemble the other diaphragm assembly to the
shaft as explained in step 1.
4. Hold one shaft bolt (14) with a wrench and torque
the other bolt to 80-90 in-lb (9-10 N
•
m) at 100 rpm
maximum .
NOTE: When you install the clamps in Step 5, orient the
center housing so the air inlet is approximately 45°
above horizontal and the muffler is approximately hori-
zontal.
5. Position the fluid covers (1) and the center housing
so the arrows (A) on the covers face the same direc-
tion. See F
IG
. 7. Apply appropriate, waterproof sani-
tary lubricant and install the clamps around the fluid
and air covers. Install the grounding strip on the
clamps, and torque the t-handle nuts to 80-90 in-lb
(9-10 N•m). Do not use rotary power tools.
6. Reassemble the ball check valves and manifolds as
explained on page 16.
F
IG
. 7: Standard Diaphragm
14
15
23
20
25
105
1
6
A
ti17650a
4
Torque to 80-90 in-lb (9-10 N•m) at 100 rpm maximum.
4
Air side markings on diaphragm must face housing.
3
3
Apply appropriate waterproof sanitary lubricant to the
threads and inside of clamp.
1
Torque to 80-90 in-lb (9-10 N•m). Do not use rotary power
tools..
2
1 2
Flat side must face toward shaft.
5
5
1