Hitachi 288466 important safety instructions Grease top inch or two of piston rod

7.Soak all leather packings in SAE 30W oil for 1 hour minimum prior to assembly.

Note: For steps 8-10 refer to Fig. 12.

Repair

12.(Fig. 14) Install o-rings (14) inside cylinder (2) and on sleeve (4). Slide sleeve (4) into bottom of cylinder

(2). Replace o-ring (15) if desired.

8.Place male gland (20) in cylinder.

9.Alternately stack UHMWPE (21) and leather pack- ings (22). Note orientation.

10.Place female gland (23) in top of cylinder. Seat packings.

Place inside cylinder (2) and push to shoulder with sleeve (4).

2

21

20

23

22

OR

288467/ 288466 288468 288819

14

FIG. 14

4

15

ti8859a

FIG. 12

ti8857a

Note: O-ring (15) is not required for safe pump opera- tion.

13. (Fig. 15) Grease top inch or two of piston rod (5)

that goes through the sleeve/cylinder assembly

11.(Fig. 13) Install packing nut (3) into cylinder and hand tighten.

3

ti8858a

FIG. 13

CAUTION

Never slide piston assembly (5) into top of sleeve (4) as this may damage piston packings.

throat packings. Grease piston packings at bottom

of piston pump.

Carefully slide piston assembly (5) into bottom of

sleeve/cylinder assembly (2) until pump rod pro-

trudes out the top and piston packings are totally

inside the sleeve (4).

2

15

4

5

ti8860a

ti8860a

FIG. 15

311845C 7