Solution

PROBLEM	CAUSE
Low pressure.	Worn nozzle.
	Belt slippage.
	Air leak in inlet plumbing.
	Relief valve stuck, partially
	plugged or improperly adjusted
	valve seat worn.
	Inlet suction strainer clogged o
	improper size.
	Worn packing. Abrasives in
	pumped fluid or severe cavita-
	tion. Inadequate water supply.
	Fouled or dim/ inlet or discharge
	valves.
	Worn inlet or discharge valves.
	Leaky discharge hose.

Pump runs extremely rough, Restricted inlet or air entering

uressure low.	the inlet plumbing.
	Inlet restrictions and/or air
	leaks. Stuck inlet or discharge
	valve.

Replace with nozzle of proper size.

Tighten or replace; use correct belts and replac both at same time.

Disassemble, reseal, andreassemble.

Clean. and adjust relief valve; check for worn and dirty valve seats. Kit available.

Clean. Use adequate size. Check more frequently.

Install proper filter. Check flow available to pump.

Clean inlet and discharge valve assemblies.

Replace worn valves, valve seats and/or discharge hose.

Proper size inlet plumbing; check for airtight seal.

Clean out foreign material, replace wornvalve:

Waterleakage from under the manifold.

Water in pump crankcase.

Frequent or premature failure of the packing.

Strong surging at the inlet 3nd low pressure on the jischarge side.

Leaking H.P. seals.

Worn packing.

M a y be caused by humid air condensing into water inside the crankcase.

Scored plungers.

Over pressure to inlet manifold

Damaged or worn plungers.

Abrasive material in the fluid beingpumped.

Excessive pressure and/or tern perature of fluid being pumped.

Over pressure of pumps.

Running pump dry.

Foreign particles in the inlet or discharge valve, or worn inlet and/or discharge valves.

Replace seals.

Install new packing.

Change oil at 3 month or 500 hour interval using Graco CrankcaseOil (other approved o every month or 200 hours) P.N. 801-144.

?eplace plungers.

?educe inlet pressure.

3eplace plungers.

nstall proper filtration on pump inlet plumbing

:heck pressures and fluid inlettemperature; bc jure they are within specified range.

?educe pressure.

10 not run pump without water.

:heck for smooth lap surfaces on inlet and iischarge valve seats. Discharge valve seats m d inlet valve seats may be lapped on a very ine oil stone.

800-048, 801-457, 2104ES specifications

Graco Inc, a renowned manufacturer in the field of fluid handling systems, offers an impressive range of products tailored for various industrial needs. Among its notable offerings is the Graco 2104ES, known for its innovative design and exceptional performance. This versatile unit is specifically engineered to meet the demands of various industries, including automotive, construction, and manufacturing.

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In summary, Graco Inc offers a powerful trio of fluid handling solutions in the 2104ES, 801-457, and 800-048 models. With innovative technologies, user-friendly features, and a strong focus on safety and durability, these products are essential for any industrial operation seeking reliability and efficiency.

PROBLEM

CAUSE

SOLUTION

800-048, 801-457, 2104ES specifications