HARBEN CENTURY, Service Manual

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Flowplant Century Pump Manual
c. If unit contains an 8-cylinder pump with split delivery manifold, carry out the procedure
detailed in 4.3.5 I to vi.
xi. Unscrew and remove Nuts (105).
xii. Pull Inlet Manifold (16) off of Studs (101).
Note: Depending on the nature of the repair or investigation, either complete the
appropriate operation for the pump detailed in 4.3.3, .4 or .5, or continue this procedure
from 4.3.7 xiii.
xiii. Unscrew and remove the Bleed Screws (93) and pull the Bleed Ring (44) off the
Barrel.
xiv. Unscrew Barrel retaining Capscrew (95) one complete turn only.
Notes: (1) Only Capscrews adjacent to Barrels need be undone
(2) If a 4-cylinder pump, do not unscrew Capscrew (95).
xv. Unscrew and remove eight Nuts (111, 121) and Washers (103) from Bolt (99).
xvi. At the delivery side of the pump, unscrew Bolts (99) until end of Bolt is flush with the
Inlet Crankcase (2).
xvii. Using a nylon mallet, tap the heads of Bolts (99), gently making the Inlet Crankcase
(2) separate from the Delivery Crankcase (3). Ensure the Crankcase halves separate
evenly. When the halves have almost separated, it may be necessary to unscrew
Bolts (99) a couple more turns and tap them again to completely disengage the
halves.
CAUTION
DO NOT UNSCREW BOLTS (99) MORE THAN IS NECESSARY. IF TOO FEW THREADS
ARE BEING USED IN THE INLET CRANKCASE, THREADS MAY BE STRIPPED WHEN
THE BOLTS ARE TAPPED.
xviii. When halves are apart, unscrew and remove Bolts (99).
xix. Lift Inlet Crankcase Remove Spacer Tube Assemblies (112).
xx. Remove spacer tube assemblies (112).
xxi. The pump is now prepared for Crankcase component repair or replacement.
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