11
Gear End Disassembly
14. Remove the crankcase cover bolts (9). Inspect the crankcase cover O-ring (4) for wear. Replace if neces-
sary.
15. Inspect the dip stick (5) vent hole for signs of clogging. Clean if necessary.
16. To remove the crankshaft (18), first remove the bearing cover plates (12) Remove the key (19).
17. Hold the pump rear assembly with a wooden fixture, or other suitable device, in order to secure it while
removing the crankshaft (18). Using a plastic mallet, tap the crankshaft (18) from one side while turning it
from the other side. The turning insures that during this sequence the crankshaft does not become wedged
against the connecting rods (20). The far side bearing (15) will remain in the crankcase (1). When free, the
crankshaft (18) can be removed by hand.
18. The crankshaft bearing (15) remains on the crankshaft (18) as it is removed. The near side crankshaft seal
(14) will be removed by this procedure.
19. If necessary, use a bearing puller to remove crankshaft bearing (15).
20. Remove the connecting rod (20) and plunger rod/crosshead assembly (22) from the rear of the pump by
pulling straight out of the crosshead guides.
21. To remove the crankcase oil seal (26), tap oil seal out from the rear of the crankcase using a dowel and
rubber mallet. The area onto which the oil seal rests should be clean and dry. Put a small drop of loc-tite on
the oil seals and place into crankcase with clips facing the rear of the pump.
22. To remove the crosshead pin (23) from the crosshead (22), the assembly should be positioned on a
wooden fixture to avoid damage to crosshead. Drive out pin (23) on opposite side of mark on the cross-
head. On those pumps without mark on crosshead, drive out pin by tapping on tapered side of pin.
23. To remove the bearing remaining in the crankcase, insert small end of Giant Bearing tool and tap with a
rubber mallet untill bearing and seal are completely removed. The bearing can only be removed from the
inside by inserting the Giant Bearing Tool through the opposite side of the crankcase (1) and should be
inspected for possible damage.
Gear End Reassembly
24. To reassemble, place the far bearing in the crankcase bearing housing and with the Giant Bearing tool as a
driver, tap into the crankcase (1) using a rubber mallet.
25. Insert the far side crankshaft oil seal (14) with the Giant Bearing Tool making sure it is firmly seated and
well oiled. Always make sure that the crankshaft seal (14) lip does not show signs of wear. Replace the
bearing cover (12) and tighten securely.
26. Replace the connecting rod (20) and plunger rod/crosshead assembly (22) by press-fitting the crosshead
pin (23). Make sure to insert the beveled edge of the crosshead pin into crosshead. If the crosshead has a
mark, install pin from marked side. The crosshead pin (23) should not extend beyond either side of the
crosshead in order to prevent damage to the crosshead bore of the crankcase.
27. Place each crosshead/plunger assembly (22) into the pump making sure that all of the parts are well oiled
before insertion into the crankcase.
28. Replace near side bearing on crankshaft (18) and use mallet to tap into place.
29. Take the crankshaft (18) end with the bearing and insert the other end through the bearing housing carefully
threading the lobes of the crankshaft through the well lubricated connecting rods (20). Turning the crank-
shaft while tapping it through the connecting rods will help prevent binding and possible damage to the
connecting rods. Continue tapping the crankshaft through the connecting rods (20) until it is firmly seated
into far side bearing.
30. Insert the near side crankshaft oil seal (14), making sure it is firmly seated and well oiled. Replace the
bearing cover (12) and tighten securely.
31. See instructions (13 above) for re-installing fluid end onto gear end.
REPAIR INSTRUCTIONS - P46W, P46W-HK, & P46HT
Содержание P46HT
Страница 6: ...6 Exploded View P46W P46W HK P46HT...
