Doc No: OMM50000903
Rev: B Page 9 of 65
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property of FMC Technologies, and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by FMC.
Drain the oil from the pump power end. Remove the rear cover to expose the drive
components. Spray all internal parts with a rust preservative that is soluble in
lubricating oil while rotating the driveshaft several turns by hand to insure complete
coverage. Replace the rear cover and add ½ to 1 cup of internal rust inhibitor described
in Table 2.
Spray a rust preventative onto all exterior machined surfaces paying attention to any
unpainted areas like the crankshaft extension. Remove the oil fill cap and store with the
piston cup seals. Cap the breather opening with a plug or other suitable means in order
to keep the preservative atmosphere sealed inside the power end.
Never store the pump on the floor or ground. Always place it on a shelf or pallet that is
several inches above ground level. Cover the entire pump with a canvas or plastic tarp.
Every two months inspect the unit. Rotate the crankshaft by hand at least 4 turns
during each inspection. Drain and replace the rust inhibitor after every six (6) months of
storage.
3.4 Returning a Stored Pump to Operation
Before operating a pump that has been prepared for storage, drain the preservative and
lubricating oil mixture from the power end (crankcase). If the pump has a pinion
bearing, remove the rear cover and apply recommended crankcase lubricant (Refer to
Table 2 in Section 6.0) to the pinion bearings. Reinstall the rear cover, drain plug,
breather/filler cap, piston cup seals, and any other components that were removed for
storage. Once these steps have been completed, follow the normal pump start up
procedures outlined in this manual. NOTE: FMC can factory prepare units for long term
storage for a nominal fee if specified at the time of order.
3.5 Precautions during Freezing Weather
Freezing weather can cause problems for equipment when pumping water-based fluids
that expand in volume when changing from a liquid to a frozen solid state. When water
is left in a pump fluid end and exposed to freezing temperatures, the expansion of the
water as it freezes can rupture the fluid cylinder of the pump and cause equipment
damage. Injury may result when starting equipment that has been damaged.
Whenever the pump is stored or idle in conditions that are near or below freezing, any
water based fluids should be removed from the pump. The best way to do this is to run
the pump for a few seconds with the suction and discharge lines disconnected or open
to atmosphere. This will clear the majority of the fluid from the pumping chamber as
well as the suction and discharge manifolds. After the run, blow compressed air
through the fluid end to remove all traces of fluid. If possible, remove plugs from the
bottom of the fluid cylinder and lift up the suction valve seats to insure that all fluid is
drained from the pumping chamber between the suction and discharge valves.
As an alternative to the previous procedure, a compatible antifreeze solution can be
circulated through the fluid end. RV antifreeze, propylene glycol, is recommended for
this purpose. Remember that any fluid that poses an environmental hazard or is toxic
must be handled and disposed of properly.
