Maintenance. Graco 313997P - HFR

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Maintenance. Graco 313997P - HFR | Manualzz




Change break-in oil in a new unit

Inspect hydraulic and fluid lines for leaks

Inspect fluid inlet strainer

screens, page 56

Inspect IsoGuard Select fluid level and condition, refill or

replace as needed, page 57

Check hydraulic fluid level

Grease circulation valves with

Fusion grease (117773)

Verify operation of air drying system to prevent isocyanate crystallization

Verify vent holes on bottom of electrical cabinet are clear and unobstructed

Inspect air filter (part 24H018), clean or replace as necessary,

Use compressed air to remove dust buildup on control boards, fan, motor (under shield), and hydraulic oil coolers

Clean up all hydraulic leaks; identify and repair cause of leak

Clean dispense valve mix chamber ports regularly, see dispense valve manual

Clean dispense valve check valve screens, see dispense valve manual


After first 250 hours of operation or within 3 months, whichever comes first










As needed

See dispense valve manual

See dispense valve manual

Change Break-in Oil

After initial break-in, see Table 5 for recommended frequency of oil changes.

Table 2: Frequency of Oil Changes





0 to 90°F

(-17 to 32°C)

1000 hours or 12 months, whichever comes first

90°F and above

(32°C and above)

500 hours or 6 months, whichever comes first

Grease Circulation Valves With Fusion

Grease (117773)

DS ti9879a1

Check Hydraulic Fluid Level

Check hydraulic fluid level on dipstick (DS). Fluid level must be between indent marks (IM) on dipstick. Refill as required with approved hydraulic fluid; see


Data on page 108. If fluid is dark in color, change fluid

and filter.



IM ti7861a1

313997P 53


ADM - Battery Replacement and

Screen Cleaning

MCM and TCM - Clean Heat Sink


Battery Replacement

A lithium battery maintains the ADM clock when power is not connected.

To replace the battery:


Disconnect power to the ADM.

NOTE: This can be done by removing the CAN cable from the bottom of the ADM.


Remove rear access panel.

Keep heat sink fins clean at all times. Clean them using compressed air.

NOTE: Do not use conductive cleaning solvents on the module.


Sink Fins r_257396_3b9905_02b ti12364a1


Remove the old battery and replace with a new

CR2032 battery.


Properly dispose the old lithium battery according to local codes.


Replace rear access panel.


Connect the power to the ADM and reset the clock through Advanced Screen 1

. Refer to Appendix B

- ADM Setup Screens Overview

for more detail.


Use any alcohol-based household cleaner, such as glass cleaner, to clean the ADM. Spray on the rag then wipe ADM. Do not directly spray the ADM.

Heat Sink Fins ti12357a1

F IG . 14: Clean Heat Sink Fins ti12353a1

54 313997P


Install Upgrade Tokens

NOTE: The Motor Control Module, Fluid Control Module, and Temperature Control Module connection to the system is temporarily disabled during the installation of upgrade tokens.

To install software upgrades:


Use correct software token stated in the table. See

Graco Control Architecture

Module Programming manual for instructions.

NOTE: Upgrade all modules in the system to the software version on the token, even if you are replacing only one or two modules. Different software versions may not be compatible.

All data in the module (System Settings, USB Logs,

Recipes, Maintenance Counters) may be reset to factory default settings. Download all settings and user preferences to a USB before the upgrade, for ease of restoring them following the upgrade.

See manuals for locations of specific GCA components.

The software version history for each system can be viewed in the technical support section at

r_257396_3b9905_04b ti12358a1 ti12334a1



. 15: Remove Access Cover

Token Application

16H821 HFR :

- Advanced Display Module

- Motor Control Module

- High Power Temperature Control Module

- Fluid Control Module (AC Power Pack)

- Discrete Gateway Module

- Communication Gateway Module

16G584 Tank Stand:

- Fluid Control Module

- Low Power Temperature Control Module

16G407 Ratio Monitoring (Flow Meters) :

- Fluid Control Module ti12354a1

313997P 55


Fluid Inlet Strainer Screen


Open the fluid inlet valve, ensure that there are no leaks, and wipe the equipment clean. Proceed with operation.


The inlet strainers filter out particles that can plug the pump inlet check valves. Inspect the screens daily as part of the startup routine, and clean as required. The standard strainer is 20 mesh.

Use clean chemicals and follow proper storage, transfer, and operating procedures, to minimize contamination of the A-side screen.


Clean the A-side screen only during daily startup. This minimizes moisture contamination by immediately flushing out any isocyanate residue at the start of dispensing operations.



Pressure Relief Procedure on page 51.


Close the fluid inlet valve at the pump inlet and shut off the appropriate feed pump. This prevents material from being pumped while cleaning the screen.


Place a container under the strainer manifold (59d) to catch fluid. Remove the strainer plug (59j).


Remove the screen (59g) from the strainer manifold.

Thoroughly flush the screen with compatible solvent and shake it dry. Inspect the screen. If more than

25% of the mesh is blocked, replace the screen.

Inspect the gasket (59h) and replace as required.


Ensure the pipe plug (59k) is screwed into the strainer plug (59j). Install the strainer plug with the screen (59g) and gasket (59h) in place and tighten.

Do not overtighten. Let the gasket make the seal.

F IG . 16. Fluid Inlet Strainer




59k ti9886a1

56 313997P


IsoGuard Select



Check the condition of the A (Red) pump IsoGuard

Select fluid daily. Change the fluid if it becomes a gel, its color darkens, or it becomes diluted with isocyanate.

Gel formation is due to moisture absorption by the pump

IsoGuard Select fluid (24F516). The interval between changes depends on the environment in which the equipment is operating. The pump lubrication system minimizes exposure to moisture, but some contamination is still possible.

Fluid discoloration is due to continual seepage of small amounts of isocyanate past the pump packings during operation. If the packings are operating properly, Iso-

Guard Select fluid (24F516) replacement due to discoloration should not be necessary more often than every 3 or 4 weeks.

To change pump IsoGuard Select fluid (24F516):


Perform Pressure Relief Procedure on page 51.


Remove fittings from IsoGuard Select fluid cylinder inlet and outlet ports. Keep supply tube (ST), return tube (RT), and leak management tube (LT) connected to the fittings.


Carefully place ends of tubes with fittings still connected into an empty pail to drain IsoGuard Select fluid.


Lift the IsoGuard Select fluid reservoir (LR) out of the bracket (RB) and remove the container from the cap. Holding the cap over a suitable container, remove the inlet check valve and allow the IsoGuard

Select fluid to drain. Reattach the check valve to the

inlet hose. See F IG . 17.


Drain the reservoir and flush it with clean IsoGuard

Select fluid (24F516).


When the reservoir is flushed clean, fill with fresh

IsoGuard Select fluid (24F516).


Thread the reservoir onto the cap assembly and place it in the bracket (RB).


Push the supply tube (ST) approximately 1/3 of the way into the reservoir.


Push the return tube (RT) into the reservoir until it reaches the bottom.


The return tube must reach the bottom of the reservoir, to ensure that isocyanate crystals will settle to the bottom and not be siphoned into the supply tube and returned to the pump.


F IG . 17: IsoGuard Select Fluid System

Prime IsoGuard Select Fluid Cylinder

Ensure that the IsoGuard Select fluid cylinder outlet faces upward for air to exhaust.


Install IsoGuard Select fluid cylinder inlet fitting and inlet tube into bottom of cylinder. The inlet tube is the tube with a check valve installed in it which points in the direction of flow towards the IsoGuard

Select fluid cylinder.


Install IsoGuard Select fluid cylinder outlet fitting and outlet tube into top of cylinder. The outlet tube is the tube with a check valve installed in it which points in the direction of flow away from the Iso-

Guard Select fluid cylinder.


Remove check valve from end of outlet tube.


Use funnel to pour IsoGuard Select fluid (24F516) into tube to fill cylinder.


With check valve arrow pointing away from the Iso-

Guard Select fluid cylinder, install check valve in end of outlet tube.


Install tubes into reservoir and install reservoir into holder.

313997P 57


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