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REPAIR INSTRUCTIONS - SP100HT/SP200HT PUMP
24E
13.
Replace copper ring (24E)
onto plunger bolt (24B). Slide
plunger bolt assembly (24) into
ceramic plunger (24A). Apply
a light film of loc-tite to plunger
bolt threads and place plunger
assembly onto stainless steel
plunger base (22) and tighten to
247 in.-lbs. (28 Nm).
Gear End Disassembly
16. Remove the crankcase cover screws (9). Inspect the crankcase cover o-ring (4) for wear. Replace if necessary.
17. Inspect the dipstick (5) vent hole for signs of clogging. Clean if necessary.
18. To remove the crankshaft (18), first remove the bearing cover plates (12). Remove the key (19).
19. With a 5 mm allen wrench remove the connecting rod screws (21) and rear portion of connecting rod assemblies
(20). Push the connecting rod (20) and plunger rod (22) down as far as possible into the crankcase housing.
20. 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 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 front portion
of the connecting rods (20). The far side bearing (15) will remain in the crankcase (1). When free, the crankshaft
can be removed by hand. The opposite side crankshaft seal (14) will be removed by this procedure. It is impor-
tant that you turn the crankshaft (18) constantly while tapping from the opposite end to avoid any binding.
The crankshaft bearing (15) remains on the crankshaft as it is removed. If necessary, use a bearing puller to
remove the crankshaft bearing (15).
21. Remove the front portion of the connecting rods (20) and plunger base assembly (22) from the rear of the pump by
pulling straight out of the crankcase crosshead guides. Notice that the connecting rod (20) halves are num-
bered or colored. Connecting rods must be positioned with their numbers or colors on the upper left-hand
side, in the same numerical sequence as when they were removed.
22. Using a dowel and a rubber mallet, tap the oil seals (26) out from the rear of crankcase (1). 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 lips facing the rear of the pump.
23. 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 the pin on opposite side of mark located on the crosshead. On those
pumps without mark on crosshead, drive out pin by tapping on tapered side of pin.
14.
To replace plunger oil seals (26),
proceed to "Gear End Disassembly"
section below. Otherwise, continue
as described below.
15.
Before replacing pump manifold
(29), first rotate crankshaft (18) until
two outside plungers (24A) extend
evenly forward. Next lubricate
v-sleeves (50) in the rear v-sleeve
housing (48) and slide housing over
plungers.
Important! Do not use grease on the
seals. Lubricate ceramic plungers
with a light film of oil. Carefully and
evenly slide manifold over plungers
and press manifold firmly against
crankcase (1). Replace manifold stud
bolts (45), washers (47) and nut (46)
and tighten to 59 ft.-lbs. (80 Nm).
10
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