Graco 313874EN-E User Manual
Repair - Parts
™
313874E
VRM
Hydraulic, Plural-component, Variable-Ratio Proportioner. For pouring and dispensing
sealants and adhesives. For professional use only.
Not approved for use in European explosive atmosphere locations.
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
See page 4 for model information, including maximum
working pressure and approvals.
EN
ti17663a
Contents
Related Manuals ...........................3
Models ...................................4
Warnings .................................5
Important Two-Component Material Information . 8
Isocyanate Conditions ..................... 8
Material Self-ignition ...................... 8
Keep Components A (Red) and B (Blue) Separate 8
Moisture Sensitivity of Isocyanates ...........8
Changing Materials ....................... 9
A (Red) and B (Blue) Components .............9
Repair ...................................10
Linear Position Sensor Replacement ........10
Hydraulic Driver Removal ................. 11
Dura-Flo Lower Removal ................. 12
Hydraulic Power Pack Repair ..............14
Parts .................................... 22
Systems, 24F391, 24F872, 24F873 .........22
Machine Base, 24C168 ...................23
Power Pack Module .....................27
Power Pack Module Sub-Assemblies ........28
Vertical Driver Pumps ....................32
Hydraulic Vertical Actuator ................34
Electrical Panels ........................ 35
Power Panel ........................... 36
Fluid Control Panel ......................37
Applicator Assembly ..................... 38
Mixer Manifold, 24F668 ................... 40
Mixer Assembly, 24H027 .................42
Floor Mounted Support ................... 43
Hoses ................................44
Logic Drawings ...........................45
230V 3 Phase Power Distribution Box ....... 45
400V 3 Phase Power Distribution Box ....... 46
B (Blue) Hydraulic Power Pack ............47
A (Red) Hydraulic Power Pack .............48
Main Enclosure ........................49
B (Blue) Hydraulic Power Pack and Dispense Head
Pneumatics ......................... 50
Technical Data ............................ 51
Dimensions ............................51
Graco Standard Warranty ...................52
Graco Information .........................52
2 313874E
Related Manuals
Manuals are available at www.graco.com.
Component manuals in U.S. English:
System Manuals
313873 VRM Setup - Operation
Power Distribution Box Manual
3A0239 Power Distribution Boxes Instruc-
tions-Parts
Pumpline Manuals
Related Manuals
3A0022
3A0021 Vertical Hydraulic Driver
Feed System Manuals
3A1159 VRM Feed Systems
Valve Manuals
310550 1/2 in. NPT Fluid Port Ball Seat
310551 3/4 in. NPT Fluid Port Ball Seat
3A1792 DV Series Dispense Valves
U-Cup Dura-Flo™Lowers
Repair-Parts
Applicator
Applicator
313874E 3
Models
Models
Approximate
Output per
Cycle (A+B)**
gal. (liter)
System approved
Full Load
PeakAmps
Per Phase*
Voltage
(phase)
System
Watts†
Max Flow
Rate◆**
lb/min (kg/min)
24F872 60 A 230 (3)
24F391
24F873
✔
55 A 400 (3)
55 A 400 (3)
24,000 66 (30) 1.0 (3.8) 1.63 2000 (14, 138)
* Full load amps with all devices operating at maximum capabilities. Fuse requirements at various flow rates and
mix chamber sizes may be less.
** Values are dependent on installed pump size. Values shown are for largest available pump size.
◆ Flow rate is independent of frequency 50/60 Hz.
‡ If a motor control module is replaced, see Adjust Motor Control Module Selector Switch on page 16 to set the
machine to the proper maximum fluid working pressure.
Hydraulic
Pressure
Ratio**
Maximum Fluid
Working Pressure ‡
psi (MPa, bar)
4 313874E
Warnings
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back
to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where
applicable.
WARNING
ELECTRIC SHOCK HAZARD
This equipment must be grounded. Improper grounding, setup, or usage of the system can cause electric shock.
• Turn off and disconnect power at main switch before disconnecting any cables and before servicing
equipment.
• Connect only to grounded power source.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and regulations.
TOXIC FLUID OR FUMES HAZARD
Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or
swallowed.
• Read MSDSs to know the specific hazards of the fluids you are using.
• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.
• Always wear chemically impermeable gloves when spraying, dispensing, or cleaning equipment.
PERSONAL PROTECTIVE EQUIPMENT
You must wear appropriate protective equipment when operating, servicing, or when in the operating
area of the equipment to help protect you from serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited to:
• Protective eyewear, and hearing protection.
• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.
SKIN INJECTION HAZARD
High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This
may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical
treatment.
• Do not point dispensing device at anyone or at any part of the body.
• Do not put your hand over the fluid outlet.
+
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking,
or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses and couplings daily. Replace worn or damaged parts immediately.
313874E 5
Warnings
WARNING
FIRE AND EXPLOSION HAZARD
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic
drop cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes
are present.
• Ground all equipment in the work area. See Grounding instructions.
• Use only grounded hoses.
• Hold gun firmly to side of grounded pail when triggering into pail.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
• Keep a working fire extinguisher in the work area.
EQUIPMENT MISUSE HAZARD
Misuse can cause death or serious injury.
• Do not operate the unit when fatigued or under the influence of drugs or alcohol.
• Do not exceed the maximum working pressure or temperature rating of the lowest rated system
component. See Technical Data in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information
about your material, request MSDS from distributor or retailer.
• Do not leave the work area while equipment is energized or under pressure. Turn off all equipment
and follow the Pressure Relief Procedure when equipment is not in use.
• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine manufacturer’s replacement parts only.
• Do not alter or modify equipment.
• Use equipment only for its intended purpose. Call your distr ibutor for information.
• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.
• Do not kink or over bend hoses or use hoses to pull equipment.
• Keep children and animals away from work area.
• Comply with all applicable safety regulations.
6 313874E
Warnings
WARNING
MOVING PARTS HAZARD
Moving parts can pinch, cut or amputate fingers and other body parts.
• Keep clear of moving parts.
• Do not operate equipment with protective guards or covers removed.
• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.
BURN HAZARD
Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe
burns:
• Do not touch hot fluid or equipment.
313874E 7
Important Two-Component Material Information
Important Two-Component Material Information
Isocyanate Conditions
Spraying or dispensing materials containing isocyanates creates potentially harmful mists, vapors, and
atomized particulates.
Read material manufacturer’s warnings and material
MSDS to know specific hazards and precautions
related to isocyanates.
Prevent inhalation of isocyanate mists, vapors, and
atomized particulates by providing sufficient ventilation in the work area. If sufficient ventilation is not
available, a supplied-air respirator is required for
everyone in the work area.
To prevent contact with isocyanates, appropriate personal protective equipment, including chemically
impermeable gloves, boots, aprons, and goggles, is
also required for everyone in the work area.
Material Self-ignition
Some materials may become self-igniting if applied
too thickly. Read material manufacturer’s warnings
and material MSDS.
Moisture Sensitivity of Isocyanates
Isocyanates (ISO) are catalysts used in two component
foam and polyurea coatings. ISO will react with moisture
(such as humidity) to form small, hard, abrasive crystals,
which become suspended in the fluid. Eventually a film
will form on the surface and the ISO will begin to gel,
increasing in viscosity. If used, this partially cured ISO
will reduce performance and the life of all wetted parts.
NOTE: The amount of film formation and rate of crystallization varies depending on the blend of ISO, the
humidity, and the temperature.
To prevent exposing ISO to moisture:
• Always use a sealed container with a desiccant
dryer in the vent, or a nitrogen atmosphere. Never
store ISO in an open container.
• Keep the pump wet cups filled with IsoGuard
Select®, part 24F516. The lubricant creates a bar-
rier between the ISO and the atmosphere.
• Use moisture-proof hoses specifically designed for
ISO, such as those supplied with your system.
• Never use reclaimed solvents, which may contain
moisture. Always keep solvent containers closed
when not in use.
• Never use solvent on one side if it has been contaminated from the other side.
• Always lubricate threaded parts with ISO pump oil
or grease when reassembling.
Keep Components A (Red) and B (Blue) Separate
Cross-contamination can result in cured material in
fluid lines which could cause serious injury or damage equipment. To prevent cross-contamination of
the equipment’s wetted parts, never interchange
component A (Red) and component B (Blue) parts.
8 313874E
Changing Materials
• When changing materials, flush the equipment multiple times to ensure it is thoroughly clean.
• Always clean the fluid inlet strainers after flushing.
• Check with your material manufacturer for chemical
compatibility.
• Most materials use ISO on the A (Red) side, but
some use ISO on the B (Blue) side. See the following section.
A (Red) and B (Blue) Components
IMPORTANT!
Material suppliers can vary in how they refer to plural
component materials.
A (Red) and B (Blue) Components
Be aware that when standing in front of the manifold on
proportioner:
• Component A (Red) is on the left side.
• Component B (Blue) is on the right side.
For all machines:
• The A (Red) side is intended for ISO, hardeners,
and catalysts.
• The B (Blue) side is intended for polyols, resins, and
bases.
NOTE: For machines with material volume ratios other
than 1:1, the higher volume side is typically the B (Blue)
side.
313874E 9
Repair
Repair
Linear Position Sensor Replacement
713
718
706
711
4
722, 723
2
704
9
710
708
707
3
701
9
702
1
714
715
6
712
5
716
4
4
3
708
705
ti17670a
1
Torque to 100 ft-lb (135 N•m).
2
Torque to 350 in-lb (39.5 N•m).
3
Apply a light coating of lubricant to seals and
surfaces specified.
4
Torque to 50-60 ft-lb (68-81 N•m).
5
Apply adhesive to surfaces specified.
6
Torque to 10-12 in-lb (1.1-1.4 N•m).
7
Apply thread sealant to threads.
8
Torque to 30-36 ft-lb (41-49 N•m).
9
Orient ref 701 with date code on casting
opposite of 0.25 diameter hole as shown. Ref
704 to be on opposite side of 0.25 diameter
hole as shown.
FIG.1
NOTE: See FIG. 1 for part references.
5. Use a 1-1/4 in. wrench to loosen the linear position
sensor. Remove the linear position sensor.
1. Perform Shutdown procedure. See operation manual for procedure.
6. Carefully insert the new linear position sensor
through the hole in the plate (713) and into the verti-
2. Remove pumpline shield.
cal hydraulic driver. Use a 1-1/4 in. wrench to gently
tighten.
3. Insert a large allen wrench through the center of the
lift ring (717) then twist to loosen. Remove lift ring.
4. Disconnect linear position sensor cable. Route the
cable through the hole in the plate (713) directly
above the linear position sensor (718).
10 313874E
Hydraulic Driver Removal
NOTE: This procedure details how to remove the
hydraulic driver. Hydraulic driver rebuild information is in
the hydraulic driver manual.
623
Repair
604
621618619620622
_1c
3
ti17669a
601
Isometric View
1
Torque 50-60 ft-lb (68-81 N•m).
2
Torque 145-155 ft-lb (196-210 N•m).
FIG.2
NOTE: See FIG. 1 and FIG. 2 for part references.
1. Perform Shutdown and Pressure Relief Procedure procedures. See operation manual for proce-
dures.
2. Remove the pump shield.
3. Remove three screws (716). Remove top
plate (713).
4. Remove three tie rods (712). Remove plate (711)
with linear position sensor (718).
5. Remove three tie rods (710).
6. Loosen the coupling nut (603) to disconnect the
actuator and pump rods.
604
3
2
606
605
1
603
4
3
4
2
3
608
607
Apply thread lubricant.
Apply thread sealant.
1
7. Remove the drip fittings connected to the base of
the vertical hydraulic actuator.
8. Remove four screws (705) connecting hydraulic
driver to vertical actuator housing (704).
9. Remove three screws (706) that connect the bottom
plate (702) to the rest of the hydraulic driver.
10. Remove the hydraulic driver (701).
11. See hydraulic driver manual for rebuild information.
NOTE: Install hydraulic driver in reverse order. See
notes in the applicable parts illustrations for torque and
other specifications.
602
613
313874E 11
Repair
Dura-Flo Lower Removal
NOTE: This procedure details how to remove the
Dura-Flo Lower. Rebuild information is in the Dura-Flo
Lower manual.
623
604
621618619620622
_1c
3
ti17669a
601
Isometric View
1
Torque 50-60 ft-lb (68-81 N•m).
2
Torque 145-155 ft-lb (196-210 N•m).
FIG.3
See FIG. 3 for part references.
1. Perform Shutdown and Pressure Relief Proce-
dure procedures. See operation manual for procedures.
2. Loosen the coupling nut (603) to disconnect the
hydraulic vertical actuator and pump rods.
3. Use a large adjustable wrench to remove the large
inlet feed fittings at the base of the Dura-Flo Lowers.
604
3
2
606
605
1
603
4
3
4
2
3
608
607
Apply thread lubricant.
Apply thread sealant.
1
NOTE: Install Dura-Flow Lower in reverse order. See
notes in the applicable parts illustrations for torque and
other specifications.
602
613
4. Remove three screws (608).
5. Remove Dura-Flo Lower.
6. See Dura-Flo Lower manual for rebuild information.
12 313874E
Repair
313874E 13
Repair
Hydraulic Power Pack Repair
415
416
404
414
409
412
413
408
424
435
11 26
8
2
12
434
403
421, 422
5
446
6
7
14
11
11
11
6
11
428
430433432431445
11
15
429
418
2
10
3
11
10
2
12
2
12
10
11
3
9
13
417
419
406
405
410
411
423
425
12
5
421,
427
4
444
437
11
2
12
426
401
438
11
8
9
12
10
407
402
_1j
406
420
1
Assemble coupler to specified dimensions
prior to mounting assembly to housing.
2
Torque to 40 ft-lb (54 N•m).
3
Torque to 35 ft-lb (47 N•m).
4
Torque to 20 ft-lb (27 N•m).
5
Torque to 15 ft-lb (20 N•m).
6
Torque to 10 ft-lb (14 N•m).
7
Torque to 58 in-lb (6.5 N•m).
448, 449
436
402
8
Torque to 34 in-lb (3.8 N•m).
9
Torque 1/4 turn past hand-tight.
10
Apply PTFE tape on installation end only.
11
Apply sealant to threads.
12
Apply light coating of lubricant to seals.
13
Fill reservoir with hydraulic fluid.
14
Orient with airflow arrow pointing toward
mounting bracket.
.45
+.00
-.02
1
+.01
.30
-.00
1
15
Prior to installing Ref. 428 into Ref. 426,
install Ref. 429 into Ref. 428 and adjust
head 1/8 in. from surface.
24
Align fan plug as shown.
26
Apply thermal lubricant to contact side.
431
24
FIG. 4: Hydraulic DC Power Pack
14 313874E
Repair
Remove Hydraulic Power Pack Shroud
1. Remove four screws from base of shroud.
2. Lift shroud off of Hydraulic Power Pack.
Install Hydraulic Power Pack Shroud
NOTICE
Do not over-torque any item that threads into the
hydraulic tank. This will strip the threads and
require tank replacement.
1. Place shroud on top of Hydraulic Power Pack.
2. Install four screws securing shroud to hydraulic tank.
Replace Hydraulic Filter
Filter is located at right rear of hydraulic power pack.
See FIG. 4 on page 14.
NOTICE
If any debris falls into the hydraulic tank, the debris
must be removed or machine damage will result.
Replace Fan
See FIG. 4 on page 14.
1. Perform Shutdown procedure. See operation manual for procedure.
2. Remove Hydraulic Power Pack Shroud, see procedure on this page.
3. Remove four screws (432) connecting fan to mounting plate.
4. Remove fan and install new fan.
5. Install four screws (432) connecting fan to Motor
and Motor Control Module.
6. Install Hydraulic Power Pack Shroud, see proce-
dure on this page.
Remove Motor Control Module
1. Perform Shutdown procedure. See operation manual for procedure.
2. Use compressed air to remove any loose debris
around the hydraulic filter.
3. Remove new filter from wrapping.
4. Apply a light coat of hydraulic fluid to the o-ring on
the face of the hydraulic filter.
5. Being careful not to allow any debris into the
hydraulic tank remove old filter from tank then
quickly install new filter.
See FIG. 4 on page 14.
1. Perform Shutdown procedure. See operation manual for procedure.
2. Remove Hydraulic Power Pack Shroud, see procedure on this page.
3. Remove four screws (432) connecting fan to Motor
and Motor Control Module. Remove fan and mounting plate.
4. Note the location of each Motor Control Module
cable then remove all electrical cables on the left
and right sides of the Motor Control Module.
5. Remove six screws (429) securing Motor Control
Module in place.
6. Slowly and carefully slide the Motor Control Module
up until the cable on the bottom of the Motor Control
Module can be accessed and removed. Disconnect
the cable.
7. Slide the Motor Control Module up and remove.
313874E 15
Repair
Adjust Motor Control Module Selector
Switch
NOTICE
If the Motor Control Module is replaced, the selector switch must be set prior to initial startup of the
Motor Control Module or damage may occur.
The Motor Control Module uses an 8-position selector
switch (S) to set system maximum working pressure.
See FIG.5.
The system must be configured to have a maximum
working pressure of 2000 psi (13.8 MPa, 138 bar). Set
the selector switch according to the following table.
MCM Switch Position
B (Blue) 1
A (Red) 2
The selector switch position will be properly set at the
factory for new systems. When a motor control module
is replaced, the selector switch must be set to the correct setting by the user prior to initial startup.
4. Install access cover (D).
D
S
257396_3b9905_04b
FIG.5
Install Motor Control Module
This procedure starts assuming that the old Motor Control Module is removed from the machine. See Remove
Motor Control Module procedure, see page 15.
See FIG. 4 on page 14.
1. Perform Adjust Motor Control Module Selector
Switch procedure on page 16.
• Do not install components rated to less than the
maximum working pressure. Doing so may lead to
overpressurization and ruptured components.
• High-pressure fluid from ruptured components will
pierce skin. This may look like just a cut, but it is a
serious injury that can result in amputation. Get
immediate surgical treatment.
To set the Motor Control Module selector switch:
1. Turn machine power off.
2. Remove the access cover (D). See FIG.5.
3. Set the selector switch (S).
NOTICE
Motor Control Module selector switch position must
be set prior to startup of Motor Control Module or
damage may occur.
2. Slide the Motor Control Module into the slot.
3. Attach the cable on the bottom of the Motor Control
Module.
4. Install the six screws (429) securing Motor Control
Module in place.
5. Install electrical cables on left and r ight sides of the
Motor Control Module.
6. Install four screws (432) connecting fan to Motor
and Motor Control Module. Install fan and mounting
plate.
7. Install Hydraulic Power Pack Shroud, see proce-
dure on page 15.
16 313874E
Loading...