HP Triplex Ceramic Plunger Pump LP450, Triplex Ceramic Plunger Pump LP400 manual 38A

Page 10

REPAIR INSTRUCTION - LP350, LP400, LP450

9)Remove seal case (37) from seal sleeve (35).

10)Check plunger surface (25 and 29B) for wear and pit- ting. If none is found, pro- ceed to step twelve.

11)If plunger (29B) is worn, re- move tension screw (29C) with a 17mm wrench. Clean tension screw with wire brush to remove any old locktite. Discard copper gas- ket (29D) and replace with new. Clean the front surface of plunger/ crosshead as- sembly (25). Install new plunger (29B) onto plunger/ crosshead assembly. Put some locktite on both sur- faces of copper gasket and tension screw threads. Se- cure plunger in place with tension screw and gasket and tighten to 33 ft.-lbs.

35

39

40 (2)

41

42

38

38A

37

38

(LP400 only)

12)Remove v-sleeves (40) and support ring (41) for seal case (37) and replace with new elastomers. Lubricate parts before reinstalling into seal sleeve. Replace seal sleeve/seal case assembly (35/37) into the valve casing (43).

14)Replace nuts and washers

(49A, B) and tighten to 59 ft.-lbs.

6

4

2

7

in the pattern as shown to the

right.

8

1

3

5

 

13)Place entire manifold assem- bly sleeve assembly over the studs (49) and push firmly until seated against the crank- case (1).

10

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Contents LP350, LP400, LP450 Installation Instructions Important Operating ConditionsModel LP350 SpecificationsLP350 Pulley Selection and Horsepower Requirements Pulley InformationLP400 Pulley Selection and Horsepower Requirements Model LP400LP450 Pulley Selection and Horsepower Requirements Model LP450LP350, LP400, LP450 Exploded View LP350, LP400 & LP450 Parts List Pump System Malfunction To Check Valves Repair Instruction LP350, LP400, LP45038A Reassembly Disassembly of CrankcaseRepair Instructions LP350, LP400, LP450 Giant Industries Limited Warranty