Vollrath 219-02 User Manual

Page 18

3.7

ASSEMBLY OF MIX PUMP

CAUTION

DO NOT FORCE PARTS, THEY FIT TOGETHER

EASILY WHEN PROPERLY INSTALLED.

Haynes sanitary lubricant or liquid equivalent must be

used to lubricate all “O”-rings, piston shaft and bore of

cylinder body.

A. Place manifold “O”-ring (9) onto manifold (5) and

lubricate lightly. Place manifolds connector “O”-ring

(8) onto manifold (5) and lubricate. Place manifold

(5) into pressure switch. Position locking plate washer

(7) and secure with two wing nuts (6) finger tight.

Connect tubing (11) to quick connect (4) and tighten

hose clamp (10) finger tight. Connect quick connect

(4) to manifold (5). (See Fig. 6)

B. Install air inlet check valve (30) into cylinder top (31).

Do not lubricate. Install air inlet retainer (29) into air

inlet valve. Push into place. Check quad ring (33) for

excessive wear and replace if necessary . Spray a

thin film of lubricant in bottom of cylinder top (31).

NOTE

Quad ring must not be twisted.

Install quad ring (33) and rotate one full turn to improve

sealing. Place “O”-ring (35) onto piston shaft (34) and

“O”-ring (32) onto cylinder top (31). Spray a thin film

of lubricant onto the two “O”-rings, piston shaft and

cylinder walls. Position cylinder top (31) over piston

shaft (34). Place “O”-ring (37) onto mix inlet valve (36)

and insert inlet valve (36) into cylinder (28). Assemble

cylinder top (31) and piston (34) into cylinder (28)

and push piston fully down.

C. Place “O”-ring (26) onto mix transfer tube bottom (25)

and lubricate. Place mix transfer tube bottom (25)

into air transfer tube top (24). (See Fig. 9)

On hopper models: place mix transfer tube “O”-ring

(23) onto bottom of mix transfer tube (25) and lubricate

lightly. Position small end of two air/mix outlet springs

(22) onto two air/mix outlet valves (21) and insert

into mix transfer tube. Place valve retainer “O”-ring

(18) onto valve retainer (17). Insert safety valve (20),

spring (19) and valve retainer (17) into top hole of

mix transfer tube. (See Fig. 9)

D. Holding valve retainer firmly in place with thumb and

forefingers, join mix transfer tube (15) to pump cylinder

(16) as shown. (See Fig. 8)

Figure 11. Mix Pump Assembly

GOOD

REPLACE