Graco 3A0733H Instrukcja Użytkownika Pobierz pdf (Strona 13)

Priming Piston S

ervice

7. Remove the retaining pin (118), o-ring (119), and

ball (110). Pull the connecting rod (109) from the

displacement rod (117). Remove the seal (120).

ti15641a

117

120

110

109

118

119

Figure 5 Disassemble piston valve.

8. Remove the packing housing (103) from the top

of the cylinder (101). Remove the bearing (106),

packing (105), and o-ring (104).

9. Clean and inspect all parts. Refer to

Cleaning, page 10. Replace the parts as

necessary.

106

104

105

103

101

117

ti15640a

Figure 6 Remove packing housing.

Reassemble After Cleaning

Note

: Any damaged parts must be replaced.

Note: Lubricate the o-rings, throat packings, and

piston seals with waterproof appropriate sanitary

lubricant.

1. Install the v-

block packing (105*) and bearing

(106*) in the p

acking housing (103). The lips of

the packing mu

st face down into the housing,

and the lip of

the bearing must face up. Install

theo-ring(1

04*) on the outside of the housing.

2. Install the s

eal (120*) on the piston valve housing

at the top of t

he connecting rod (109). Place

the ball (11

0) on the seat of the housing. Install

the displac

ement rod (117) over the top of the

connecting

rod so the holes in both parts align.

Secure with

the retaining pin (118) and o-ring

(119*).

3. Lubricate

and place the packing housing (103) in

the top of t

he cylinder.

4. Lubricat

e and slide the displacement rod (117)

up throug

h the cylinder so it protrudes from the

packing h

ousing (103). Model 24G746 only:

Make sure

the drip shield (121) is in place on the

cylinder

(101).

5. Lubrica

te and install the packings (115*) into the

center o

f the poppet (114).

6. Lubrica

te and install the bearing (112*) into the

center o

f the valve stop (111).

7. Slide t

he valve stop (111), spring (113*), and

poppet

(114) onto the connecting rod (109).

8. Instal

l the gasket (102*) and the intake valve

housin

g (107). Secure the housing (107) to the

cylin

der (101) with the clamp (123).

9. Insta

ll the priming piston (108) and retaining pin

(116)

on the connecting rod (109).

10. Slide

the displacement rod (117) into the coupler.

Then

, attach the clamp (123) to hold the pump

to th

e motor base.

3A0733H 13

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