Graco 3A1494D Bedienungsanleitung PDF herunterladen (Seite 9)

Instructions

3A1494D 9

Repair Kits

All Repairs:

• Unless otherwise stated, entirely disassemble pump

as described in the pump disassembly instruction

section of this manual.

• Properly discard all replaced parts according to

local and state regulations for disposal of discarded

components.

• Always use all new parts included in the kit to

replace the identical part on the pump.

• Grease all parts prior to reassembly with a thin coat

of lightweight grease.

• Reassemble pump as described in the reassembly

instructions, page 6.

Throat and Piston Seal Replacement Kit -

24H853 (Fig. 19)

NOTE: When servicing the throat and piston seals, it is

recommended to also replace seals in the pump lower.

Order repair kit: 24K293 for 3:1 pumps or 24H855 for

5:1 pumps.

Replacement parts for o-ring (5) installed on air piston

(21), o-rings and u-cup seal (6, 7, 9, and 17) installed in

bottom cover (26), o-ring (8) installed on flange (29) and

gasket (25) used later in reassembly of the air valve

(38).

O-ring (55) is installed between the air piston (21) and

displacement rod (30).

1. Use a pick to remove the o-ring (5) installed around

the circumference of the air piston (21) (Fig. 20).

Grease the new o-ring included in the kit and install

it around the air piston.

2. Use a pick to remove o-rings (6, 7), bearing (22) and

u-cup seal (9) from the bottom cover. (Fig. 21).

Grease and replace the o-rings and u-cup seal with

the new parts included in the kit and install them in

the order shown in Fig. 21.

Ref. Description

Qty

5 O-RING, air piston 1

6O-RING 1

7O-RING 1

8 O-RING, wiper 1

9 SEAL, u-cup 1

10 PIN, spring 1

17 O-RING 3

25 GASKET, cover, small 2

55 O-RING 1

Fig. 19

Fig. 20

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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