Graco 312497P important safety instructions Contamination Blockage, Separation Blockage

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Repair

d.Clean sections and pistons in suitable clean sol- vent until all lubricant has been removed.

e.Use compressed air to dry and blow out all ports thoroughly.

A small metal probe should be used to make sure all passages are clean and open.

Inspect cylinder bore and piston carefully for scratches, score marks or other damage.

NOTE: If either piston or cylinder bore is damaged, a new section must be installed. All pistons are selectively fitted to the bore for proper clearance. Be sure to rein- stall piston only into the valve section from which it was removed.

f.If divider valve section and piston both appear in good condition, reassemble section making certain piston slides smoothly but snugly in cyl- inder bore.

g.Repeat cleaning and inspection of each section. After all sections have been cleaned, blown out, inspected and found to be in good condition, reassemble divider valve using notes and sketches (Step 7) as a reference.

NOTE:

•Always use new gaskets.

•Test operation of divider valve using manual pump.

Contamination Blockage

If dirt, foreign material or any other form of contamina- tion is found in a divider valve, cleaning that divider valve will only temporarily solve contamination blockage problems. The source of the contamination must be eliminated for satisfactory service.

The system filtering method must be investigated, filter elements should be inspected and cleaned if necessary.

The reservoir filling method should be reviewed to elimi- nate any chance of foreign material entering the reser- voir during filling.

Separation Blockage

If a hard wax or soap-like material is found in the Valve Section, grease separation is occurring. This means that the oil is being squeezed from the grease at normal sys- tem operating pressure and the grease thickener is being deposited in the divider valve. Cleaning the divider valve will only temporarily solve the problem. Consult your lubricant supplier for recommendations on alternate lubricants and your local Graco/Trabon distrib- utor to verify compatibility with centralized lubricating systems.

If all indictor port plugs are removed, master will not cycle. Blockage is in this divider valve.(FIG. 12).

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312497P

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Contents Maximum Pressure Lube Points Pressure kPSIDivider Type SectionsEquipment Misuse Hazard Setup Pressure Relief ProcedureComponent Identification Typical Divider Valve CombinationsDivider Valves KeyFilling Secondary-to-Lube Point Lines Prefilling Lubricant Distributor LinesFilling Master-to-Secondary Lube Lines Filling Master Divider Valve Repair Section Air purging afterTI11098 TI11113 Purging Air from Pump to Master Divider Valve Lines Lube Point Secondary Master Disconnect Hand Pump Lube Point Secondary Master Remove Indicator Or Port Plug Performance Indicators Reset Indicator with MemoryRupture Indicator Automatic Relief Indicator4a. Master Divider Valve Equipped With Performance Indicator Assembly Torque ft-lbs N.m Torque Values *see ,Contamination Blockage Separation BlockageTechnical Data Dimensions MD SeriesParts Part No. DescriptionTechnical Data MJ SeriesRef Part No. Description MSP Series Crossport Plate Optional Parts MSP Series 312497P MHH Series Lube Outlet Inlet Typical Parts MXP Series /04 Ti11477 #2/33/0/24 0,!4% /04 Ref Part No. Description MGO Series 54,%43 $#!4/2 0/243 Parts MX Series v /54,%4 MX Series 312497P Accessories Rupture Indicator MH Divider Valves Only Rupture-to-Atmosphere Indicator Rupture-to-Atmosphere Indicator with Spud AssemblyRupture Discs Cycle IndicatorsSingling and Crossporting Bar Assemblies Cycle Counters Part No Cycle SwitchesPart Numbers Proximity Cycle Switches Description Type Part Number Pins SealBase Section Sub Assemblies Proximity Switch Connection CablesConnection Cables for 312497P Graco Standard Warranty Graco Information
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