REPAIR INSTRUCTIONS - P46HT
1.To Check Suction and Discharge Valves
Loosen valve plugs (41 and 43) using a socket wrench. Note the arrangement for reassembly and check the discharge valves underneath and suction valves (in suction valve adapter 39).
2.To Check V-Sleeves
Separate valve casing (29) from the crankcase (1) and pull off over the plungers. If the seals have to be replaced, remove all parts from the valve casing (29) in the suction valve direction. Grease new
3.To Check Plungers and Crankcase
If oil leaks at plunger outlet (22), and or the radial shaft seal (26), the worn plungers and crosshead (plunger assembly) must be placed. Drain oil and remove crank- case cover (3) and valve casing (29). Take off bearing cover (12) and shaft protec- tor (17) on one side before removing the crankshaft (18). Then remove crankshaft axially by means of a press or a rubber hammer. Do not force the cranks on the shaft when pulling through the connecting rod (20). Do not bend connecting rod. Dismantle crosshead and connecting rod and replace worn parts.
Reinstall the crankshaft first being particularly careful with the cranks. Then press on the bearing on both sides and finally install radial shaft seal and bearing cover.
4.To Replace Plunger Pipes
Screw out tension screw (24B), pull off plunger pipes (24A) and clean plunger surface. Install new plunger pipe. Fix tension screw with
5.Drip-Return
After the valve casing has been removed, the weep seals (50) in the intermediate casing (46) can be examined and replaced as necessary. Should lime deposits occur in the valve casing, care must be taken in keeping the two holes in the valve casing (29) free to ensure
NOTE: Contact Giant Industries for Service School Information. Phone: (419)-531-4600
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