Graco 312497G important safety instructions Contamination Blockage, Separation Blockage

Page 16

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 cer- tain piston slides smoothly but snugly in cylinder 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 prob- lems. The source of the contamination must be elimi- nated 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 alter- nate lubricants and your local Graco/Trabon distributor to verify compatibility with centralized lubricating sys- tems.

If all indictor port plugs are removed, master will not cycle. Blockage is in this divider valve.(FIG. 11).

16

312497G

Page 15 Page 17
Image 16
Page 15 Page 17
Contents Maximum Pressure Lube Points Pressure kPSIDivider Type SectionsPressure Relief Procedure Setup Component IdentificationTypical Divider Valve Combinations Divider ValvesPrefilling Lubricant Distributor Lines Filling Secondary-to-Lube Point 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 Bleed Hose Here Lube Point Secondary Master Performance Indicators Reset Indicator with MemoryRupture Indicator Automatic Relief Indicator4a. Master Divider Valve Equipped With Performance Indicator Torque Values *see , Assembly Torque ft-lbs MSP/MH MXP MGOContamination Blockage Separation BlockageTechnical Data DimensionsMD Series PartsMJ Series Lbs oz 1.55 kgParts MSP Series Crossport Plate Optional Parts MSP Series 312497G MHH Series Lube Outlet Inlet Typical Part No. Description MXP Series Ti11477 Parts MGO Series 54,%43 $#!4/2 0/243 Parts MX Series v /54,%4 Parts MX Series Accessories Rupture Indicator MH Divider Valves Only Rupture-to-Atmosphere Indicator Rupture-to-Atmosphere Indicator with Spud AssemblyCycle Indicators Rupture DiscsSingling and Crossporting Bar Assemblies 1175Cycle Counters Part No Cycle SwitchesPart Numbers Proximity Cycle Switches Description Type Part Number Pins SealProximity Switch Connection Cables Connection Cables forGraco Standard Warranty Graco Information
Top Page Image Contents