Repair
™
GH
Korean patent: 10-0647761
4000 psi (27.6 MPa, 275.8 bar) Maximum Working Pressure
Model: 249318, 249617, 253471, 253472
833 Sprayers
- Use with Architectural Coatings, Paints, Roof Coatings
and Below Grade Coatings -
Important Safety Instructions. Read all
warnings and instructions in this manual. Save
these instructions.
311283D
ENG
Related Manuals
311279
311484
311485
311254
ti7107b
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001
Warning
Warning
The following are general warning related to the safe setup, use, grounding, maintenance and repair of this equipment.
Additional, more specific warnings may be found throughout the body of this manual where applicable. Symbols appearing in the body of the manual refer to these general warnings. When these symbols appear throughout the manual, refer back to these pages for a description of the specific hazard.
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.
• Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable
and can ignite or explode if spilled on hot surface.
• 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.
SKIN INJECTION HAZARD
High-pressure fluid from gun, 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 gun at anyone or at any part of the body.
• Do not put your hand over the spray tip.
• Do not stop or deflect leaks with your hand, body, glove, or rag.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
PRESSURIZED EQUIPMENT HAZARD
Fluid from the gun/dispense valve, leaks, or ruptured components can splash in the eyes or on skin and
cause serious injury.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.
• Tighten all fluid connections before operating the equipment.
• Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.
RECOIL HAZARD
Brace yourself; gun may recoil when triggered and cause you to fall, which could cause serious injury.
2 311283D
Warning
WARNING
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 forms from distributor or retailer.
• 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 distributor 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.
MOVING PARTS HAZARD
Moving parts can pinch 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 in this manual. Disconnect power or air supply.
PRESSURIZED ALUMINUM PARTS HAZARD
Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids
containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical
reaction and equipment rupture, and result in death, serious injury, and property damage.
SUCTION HAZARD
Never place hands near the pump fluid inlet when pump is operating or pressurized. Powerful suction
could cause serious injury.
CARBON MONOXIDE HAZARD
Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon
monoxide can cause death. Do not operate in an enclosed area.
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 MSDS’s 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.
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. Wait until equipment/fluid has cooled completely.
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, inhalation of toxic
fumes, burns, and hearing loss. This equipment includes but is not limited to:
• Protective eyewear
• Clothing and respirator as recommended by the fluid and solvent manufacturer
•Gloves
• Hearing protection
311283D 3
Component Identification
,
2
3
9
1
Component Identification
8
11
4
6
5
Ref Description
1 Hydraulic pump valve
2 Pressure control
3 Lock ring
4 Drain valve
5 Engine ON/OFF switch
6 Engine controls
7 Trigger lock
8 Serial number ID label
9 Lift locations
7
ti7107b
ti7133
10
ti7133b
10 Suction holder
11 Hydraulic oil fill
4 311283D
Operation
Operation
Pressure Relief Procedure
System pressure must be manually relieved to prevent
it from starting or spraying accidentally. Fluid under
high pressure can be injected into the skin and cause
serious injury. To reduce risk of injury from injection,
follow this procedure whenever you are instructed to
relieve pressure, stop spraying, service equipment or
install or clean spray tip. Read warnings, page 4.
1 Set pump valve OFF. Turn engine OFF.
TIA
2 Turn pressure to lowest setting. Trigger gun into pail to
relieve pressure.
General Repair Information
• Hydraulic system and engine may become very
hot during operation and could burn skin if
touched. Flammable materials spilled on hot, bare
motor could cause fire or explosion. Have belt
guard in place during operation to reduce risk of
pinching or loss of fingers.
• Install belt guard before operation of sprayer and
replace if damaged. Belt guard reduces risk of
pinching and loss of fingers.
To reduce risk of serious injury,:
• Keep all screws, nuts, washers, etc. removed during
repair procedures. These parts usually are not provided with replacement kits.
• Test repairs after problems are corrected.
• If sprayer does not operate properly, review repair
procedure to verify you did it correctly. See Trouble-
shooting, page 7.
• Do not touch moving parts with fingers or tools while
testing repair.
3 Open prime valve (vertical).
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved after
following the steps above, VERY SLOWLY, loosen tip
guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Then clean tip
and hose.
311283D 5
Grounding
Ground sprayer with grounding clamp to earth ground
for safe sprayer operation.
Maintenance
Maintenance
Spark Plug:
• Use BPR6ES (NGK) or W20EPR-U (NIPPONDENSO) plug, only.
For detailed engine maintenance and
specifications, refer to separate Honda
Engines Owner’s Manual, supplied.
Frequency Procedure
Daily Check engine oil level and fill as necessary.
Daily Check hydraulic oil level and fill as necessary.
Daily Check hose for wear and damage.
Daily Check gun safety for proper operation.
Daily Check pressure drain valve for proper operation.
Daily Check and fill gas tank.
Daily Check that displacement pump is tight.
Daily Check level of TSL in displacement pump packing nut. Fill nut, if neces-
sary. Keep TSL in nut to help prevent fluid build up on piston rod and
premature wear of packings and pump corrosion.
After first 20 hours
of operation
Weekly Remove engine air filter cover and clean element. Replace element, if
Drain engine oil and refill with clean oil. Reference Honda Engines
Owner’s Manual for correct oil viscosity.
necessary. If operating in an unusually dusty environment; check filter
daily and replace, if necessary.
• Gap plug to 0.028 to 0.031 in. (0.7 to 0.8 mm).
• Use spark plug wrench when installing and removing plug.
Replacement elements can be purchased from your local Honda dealer.
Weekly/Daily Remove and debris or media from hydraulic rod.
After each 100
hours of operation
Semi-annually Check belt wear; replace if necessary.
Yearly or 2000
hours
6 311283D
Change engine oil. Reference Honda Engines Owner’s Manual for cor-
rect oil viscosity.
Replace hydraulic oil and filter element with Graco ISO 46 Hydraulic Oil
169236; 5 gallon/20 liter or 207428; 1 gallon/3.8 liter) and filter element
287871.
Troubleshooting
Troubleshooting
PROBLEM CAUSE SOLUTION
Gas engine pulls hard (won't start) Hydraulic pressure is too high Turn hydraulic pressure knob coun-
terclockwise to lowest setting
Gas engine does not start Switch OFF, low oil, no gasoline Consult engine manual, supplied
Gas engine doesn't work properly Faulty engine Consult engine manual, supplied
Gas engine operates, but displace-
ment pump doesn't operate
Displacement pump operates, but
output is low on upstroke
Displacement pump operates but
output is low on downstroke and/or
on both strokes
Paint leaks and runs over side of wetcup
Excessive leakage around hydraulic
motor piston rod wiper
Fluid delivery is low Pressure setting too low Increase pressure
Pump valve is OFF Set pump valve ON
Pressure setting too low Increase pressure
Displacement pump outlet filter (if
used) is dirty or clogged
Tip or tip filter (if used) is clogged Remove tip and/or filter and clean
Hydraulic fluid too low Shut off sprayer. Add fluid*.
Belt worn, broken or off Replace belt.
Hydraulic pump worn or damaged Bring sprayer to Graco distributor for
Dried paint seized paint pump rod Service pump. See manual 311485
Hydraulic motor not shifting Set pump valve OFF. Turn pressure
Piston ball check not seating properly Service piston ball check. See man-
Piston packings worn or damaged Replace packings. See manual
Piston packings worn or damaged Tighten packing nut or replace pack-
Intake valve ball check not seating
properly
Suction tube air leak
Loose wet-cup Tighten wet-cup enough to stop leak-
Throat packings worn or damaged Replace packings. See manual
Piston rod seal worn or damaged Replace these parts.
Displacement pump outlet filter (if
used) is dirty or clogged
Intake line to pump inlet is not tight Tighten
Hydraulic motor is worn or damaged Bring sprayer to Graco distributor for
Large pressure drop in fluid hose Use larger diameter or shorter hose
Clean the filter
repair
down. Turn engine OFF. Pry rod up or
down until hydraulic motor shifts.
ual 311485
311485
ings. See manual 311485
Service intake valve ball check. See
manual 311485
age
311485
Clean filter
repair
311283D 7
Troubleshooting
PROBLEM CAUSE SOLUTION
The sprayer overheats Paint buildup on hydraulic compo-
Clean
nents
Oil level is low Fill with oil.
Spitting from gun Air in fluid pump or hose Check for loose connections on
siphon assembly, tighten, then rep-
rime pump.
Loose intake suction Tighten.
Fluid supply is low or empty Refill supply container.
Excessive hydraulic pump noise Low hydraulic fluid level Turn sprayer OFF. Add fluid*.
*Check hydraulic fluid level often. Do not allow it to become too low. Use only Graco approved hydraulic fluid, page 6.
8 311283D
Displacement Pump Replacement
Displacement Pump Replacement
See manual 311485 for pump repair instructions.
Removal
1. Flush pump (36). Stop pump on down stroke if
possible.
2. Relieve pressure, page 5.
3. Remove suction set (147) from pump (36).
36
5. Remove clip (121).
121
ti7789
6. Slide cover up (124).
4. Remove filter housing (110), page 15.
110
147
ti7119
124
ti7816
7. Separate coupling (125) and remove.
125
ti7814
311283D 9
Displacement Pump Replacement
8. Loosen jam nut (122) with a hammer. Unscrew
pump (36) from power head.
122
36
ti7782
9. Remove pump (36).
3. Hand tighten jam nut (122). Then tighten securely
1/8 to 1/4 turn with hammer or torque to 330 ft-lb
(447.4 N•m).
122
ti7817
4. Slide cover (124) up over pump rod. With engine in
OFF position, pull recoil starter to move rod until it
contacts pump rod.
5. Install coupling (125) around pump rod.
36
ti7804
Installation
1. Screw jam nut (122) to bottom of pump threads (36).
2. Slide cover (124) up over pump rod. Screw pump
completely up into power head.
122
125
ti7771
6. Slide cover (124) over coupling (125).
124
ti7815
36
ti7779
10 311283D
125
Displacement Pump Replacement
7. Install clip pin (121) to secure. 8. Install filter housing (110), page 15.
110
121
125
ti7809
ti7772
9. Connect suction hose (147) to pump outlet (36).
36
147
311283D 11
Pump Power Head Replacement
Pump Power Head Replacement
Removal
1. Relieve pressure, page 5.
2. Remove hydraulic lines (100, 101) from head (75).
100 101
75
4. Remove power head from unit.
ti7847
Installation
1. Install power head on unit.
ti7803
3. Loosen (4) mounting bolts (7) on the adapter
enough to lift and remove assembly.
7
ti7841
ti7851
12 311283D
2. Tighten power head bolts (7). Torque bolts to 400 +
10 in-lb (45 +
1 N•m).
ti7853
Pump Power Head Replacement
3. Attach hoses (100, 101) to head (75). Torque to 450
+
10 in-lb (50.84 N•m).
101
100
75
ti7777
4. To purge air from hydraulic lines, increase pressure
enough to start hydraulic motor stroking and allow
fluid to circulate for 15 seconds.Turn pressure
down. Turn prime valve horizontal (closed).
311283D 13
Hydraulic Motor
1
450 in-lb (51 N.m)
2
600 in-lb (68 N.m)
3
60 in-lb (7 N.m)
4
930 in-lb (105 N.m)
Torqued in 3 steps
Hydraulic Motor
2
4
3
1
ti7868
14 311283D
Filter Housing Replacement
Removal
1. Relieve pressure, page 5.
2. Remove paint and drain lines from filter housing.
Filter Housing Replacement
Installation
1. Install filter housing (110) in pump opening.
110
ti7772
ti7845
3. Loosen filter housing fitting (110) until housing and
remove housing from pump.
ti7119
110
2. Tighten fitting.
3. Attach paint and drain lines.
ti7850
Torque to 225 + 10 in-lb. (25.4+ 1.1 N.m)
311283D 15
Hydraulic Pump Replacement
Hydraulic Pump Replacement
Changing Hydraulic Oil
Draining Oil
a. Place drain pan under oil tank and drain plug.
b. Unscrew reservoir (64) drain plug and drain oil
from reservoir.
drain
plug
3. Remove screw (197) and pump handle cover (196).
Remove four cover bolts (79) and cover (140). (It is
not necessary to remove the hydraulic lines before
removing cover. The cover is designed to provide
ample room for the cover to fit over the hose.)
196
197
79
140
ti7805b
4. Unscrew suction line connections to hydraulic
pump. Place a container under hoses to catch any
dripping oil.
ti7784
Refilling Oil
a. Replace drain plug.
b. Fill tank with Graco Hydraulic Oil, ISO 46. Tank
holds approximately 4 gallons.
Removal
1. Relieve pressure, page 5. Allow hydraulic system
to cool before beginning the service procedure.
2. Drain oil, Changing Hydraulic Oil procedure,
page 16.
ti7790
ti7801
16 311283D
Hydraulic Pump Replacement
5. Remove (4) belt cover screws (79), washers (78)
and grommets (80) (2 each side).
80
78
79
67
ti7796
6. Remove belt cover (67).
67
7. Remove belt (19), page 20.
8. Loosen set-screws (87) on front of large pulley (4).
4
87
ti7783
9. Remove pulley (4) from hydraulic pump shaft.
ti7795
4
ti7807
10. Remove nuts (10) and screws (9) holding pump to
frame.
9
10
ti7788
311283D 17
Hydraulic Pump Replacement
11. Remove hydraulic pump (3).
3
ti7800
12. Remove fittings (30, 34, 35) from pump (3) and set
aside to use on the new pump.
34
(
3
35
2. Install new pump (3) in frame.
3. Install screws (9) and nuts (10). Torque to 225 +
in-lb (25.42 N.m).
9
10
ti7778
4. Replace large pulley (4) on hydraulic pump shaft.
10
3
30
ti7816
Installation
1. Install fittings (30, 34, 35) from old pump on new
pump. Torque fitting 30 and 35 to 600 +
(67.8 N.m). Torque fitting 34 to 450 in-lb (50.8 N.m).
34
10 in-lb
3
35
4
ti7813
5. Align pulley (4) on shaft. When properly positioned
approximately 1/8 inch of shaft (139) will protrude.
1/8 inch
30
ti7816
139
4
NOTE: Fill pump casing with hyraulic oil before installing
fitting (34).
ti7835
18 311283D
Hydraulic Pump Replacement
6. Replace set-screws (87). Tighten and torque to 60 +
2 in-lb (6.8 +
0.2 N•m).
NOTE: Tighten set-screw on shaft before tightening
set-screw on pump shaft.
7. Position belt (19) over pulleys (4, 6); Installing Belt,
page 20.
8. Replace belt cover (67) and grommets (80), washers (78) and screws (79), (2 each side). Torque
screws to 25-30 in-lb (2.8 -3.4 N•m).
67
80
9. Install suction lines. Tighten fittings. Torque fitting A
to 225 +
+
10 in-lb (50.1 + 1.1. N.m). Fitting C to 225 in-lb
10 in-lb (25.4 + 1.1 N.m). Fitting B to 450
(25.4 N.m).
A
B
ti7767
C
ti7889
10. Install cover (140) and with four screws (79). Torque
to 25-30 in-lb (2.8 - 3.4 N•m). Install pump handle
cover (196) with screw (197).
ti7810
ti7812
79
78
197 196
79
140
ti7111b
11. Fill oil tank following Refilling Oil procedure on
page 16.
311283D 19
Hydraulic Pump Replacement
Belt Removal and Replacement
(recommended method)
Removing Belt
a. Place a ziptie around belt (19).
19
ziptie
ti7843
Moving parts can pinch or amputate fingers and other
body parts. To avoid serious injury be sure engine is in
OFF position before pulling engine recoil.
b. Slowly pull ziptie toward you while at the same
time slowly pulling engine recoil to rotate pulleys. It may be necessary to reposition zip tie
and repeat this procedure a few times to completely remove belt from pulley.
Installing Belt
a. Put belt over lower pulley (6) and align correctly.
b. Line up belt over top left side of large pulley (4).
ti7869
c. With the palm of your hand, hold the belt snug
to large pulley while at the same time slowly pull
engine recoil to rotate pulleys.
d. Check belt (19) alignment on both large (4) and
small pulley (6). When properly positioned over
pulleys, belt is centered on pulleys and completely over all grooves.
ti7842
ti7834
Properly Aligned
Not Aligned Properly
NOTE: If belt is not aligned properly, to adjust belt, slowly
ti7837
pull engine recoil while at the same time pushing or pulling belt to reposition over pulley.
20 311283D
Hydraulic Pump Replacement
Alternate Belt Removal and Installation
Removing Belt
a. Loosen engine bolts (21) to relieve tension on
belt.
b. Slide belt off pulleys.
Installing Belt
a. Install belt (19) over small (6) and large (4)
pulleys.
b. Tighten engine bolts (21). Torque to 225 +
in-lb (25.4 +
1.1 N.m).
10
c. Check belt (19) alignment on both large (4) and
small pulley (6). When properly positioned over
pulleys, belt should be centered on pulleys and
completely over all grooves.
ti7834
Properly Aligned
Not Aligned Properly
ti7837
21
NOTE: If belt is not aligned properly, to adjust belt, slowly
pull engine recoil while at the same time pushing or pulling belt to reposition over pulley.
4
19
6
ti7870
311283D 21
Replacing Oil Reservoir
Removal
1. Relieve pressure, page 5.
Hydraulic Pump Replacement
4. Loosen and remove suction hose (153).
2. Drain oil from reservoir (64) following Draining Oil
procedure, page 16. Keep plug for use on new reservoir.
Drain Plug
ti 7784
3. Remove fill cap (27) and filter assembly (111). Keep
for use on new reservoir.
32
153
ti7785
5. Remove and keep suction fitting (32) for use on new
reservoir.
6. Loosen and remove return lines (100, 101).
100
101
111
27
ti7785
ti7803
7. Remove cooler line from reservoir (64).
22 311283D
ti7791
8. Remove (2) top bolts (86) and 2 bottom nuts (84)
securing reservoir (64) to frame.
Hydraulic Pump Replacement
9. Lift reservoir (64) out of frame.
64
ti7806
ti7786
Installation
1. Install plug (102), return elbow (31), suction fitting
(32), inlet screen (89) and filter assembly (111) in
new reservoir (64).
ti7846
111
27
31
89
102
32
311283D 23
Hydraulic Pump Replacement
2. Install new reservoir (64) in frame.
64
ti7781
3. Replace bolts (86) and nuts (84). Tighten bolts.
Torque to 125 +
10 in-lb 14 + 1.1 N•m).
4. Connect coolant line to reservoir (64). Torque to 225
in-lb (14.1 N.m).
5. Reattach return lines (100, 101). Torque to 450 +
in-lb (51 +
6. Reattach suction hose (153). Toque to 600 +
in-lb (68 +
1.1 N•m).
100
1.1 N•m).
101
ti7777
10
10
ti7766
153
ti7785
24 311283D
7. Verify drain plug has been replaced. Fill oil reservoir
with oil to high mark on dip stick (approximately 3.5
gallons).
ti7784
Drain Plug
Hydraulic Pump Replacement
8. Replace cap (27).
27
ti7785
311283D 25
Changing Hydraulic Fluid Filter
Changing Hydraulic Fluid Filter
Removal
1. Relieve pressure, page 5.
2. Loosen and remove hose (101) from fitting (103).
3. Remove filter housing (111) from reservoir (64).
4. Remove bottom filer cap (155) from housing (111).
5. Pull filter (108) off cap (155).
103
Installation
1. Install new o-ring (113) from kit.
2. Install new filter (108) over cap (155).
3. Install cap (155) and filter (108) in filter housing
(111). Hand tighten cap till snug. Then torque to 375
+
10 in-lb (42 + 1.1 N•m).
4. Install filter housing (111) into reservoir.
5. Install fitting (103) in filter housing (111). Torque to
600 +
10 in-lb (67.8 + 1.1 N.m).
6. Reattach hose (101) to fitting (103). Torque to 450 +
10 in-lbs (51 +
1.1 N•m).
101
111
108
113
155
ti7763
26 311283D
Cooler Replacement
Cooler Replacement
4. Remove screws (79), washers (78) and support bar
(77) from cooling coil (72).
Removal
1. Relieve pressure, page 5.
2. Loosen ground screw and remove ground clamp
(95) from sprayer.
95
ti7799
3. Loosen and remove return line to oil tank and
hydraulic line to cooler.
72
77
79
78
ti7794
5. Remove coil (72) from sprayer frame.
72
ti7792
ti7802
311283D 27
Cooler Replacement
Installation
1. Install new coil (72). Replace support bar (77),
washers (78) and screws (79). Tighten screws.
72
ti776 8
2. Reconnect return line to oil tank and hydraulic line
to cooler. Torque to 225 in-lb (25.4 N.m).
3. Replace ground wire (95) and tighten screw. Torque
to 25-30 in-lbs (2.8 - 3.4 N.m).
95
ti7774
4. Replace bar and screws. Torque to 25-30 in-lb
(2.8-3.4 N.m).
ti7776
77
79
78
28 311283D
Motor Replacement
Removal
1. Relieve pressure, page 5.
2. Remove screws (79) and washers (78) and belt
cover (67).
3. Remove belt (19), page 20.
Motor Replacement
Removing Pulley (6)
NOTE: This procedure is only necessary if you
are replacing the motor. When you install a new
motor you reuse the existing pulley.
Removal
a. Loosen set screw (87) located on the side of the
pulley (6).
b. Remove large bolt (24) in the center of pulley
(6).
4. Remove screws (21), washers (70) and nuts (10)
securing motor (5) to frame.
5. Remove motor (5) from frame.
Replacing Motor Fan
Removal
a. Loosen and remove bolts (86) on front of fan
(14).
b. Pull fan (14) off small pulley (6).
Installation
a. Position new fan (14) over small pulley (6).
b. Replace bolts (86) and tighten securely.Torque
to 125 +
10 in-lb (14.1 + 1.1 N.m).
c. Pull pulley (6) off motor (5).
Installation
a. Position new pulley (6) on motor (5).
b. Install large bolt (24) and washer (65) in center
of pulley (6). Torque to 125 +
N.m).
c. Tighten set screw (87). Torque to 60 +
(25.4 N.m).
10 in-lb (14.1 + 1.1
2 in-lb
Installation
1. Install motor (5) in frame.
2. Replace all screws (21), washers (70) and nuts (10).
Tighten securely.
3. Install belt (19) over pulleys (4, 6), page 20.
4. Replace belt cover (67) and screws (79) and washers (78) (2 each side). Using a wrench tighten bolts.
Torque to 25-30 in-lb (2.8-3.4 N.m).
311283D 29
79
Motor Replacement
67
4
78
19
87
86
14
5
6
21
80
24
65
10
ti7797
70
30 311283D
Removing Handle
Removing Handle
Fixed Mounting (optional)
To prevent damaging the unit when transporting it in
a truck or on a trailer, Graco recommends fixed
mounting to the vehicle.
Repositioning Handle
Before you can secure the unit to a truck or trailer bed,
you must reposition the handle.
1. Remove the 4 handle sleeve screws (143).
143
3. Remove frame tube plugs (120) located behind the
wheels.
120
4. Insert plugs (120) in upper frame handle tubes (a).
(a)
120
2. Remove handle assembly (25) by pulling it out of
upper frame tubes (1).
25
1
5. Insert handle assembly (25) into lower frame tubes
(b). The hose bracket should face down. Adjust to
appropriate in/out location.
(b)
25
25
(b)
6. Install sleeve screws (143) in lower frame tubes.
143
311283D 31
Securing Unit to Vehicle Bed
Removing Handle
For fixed mounting, fasten U-bolts over sprayer frame as
indicated in the following illustration.
1. Reposition handle, steps 1-5, page 31.
2. Place U-bolts over sprayer frame and through holes
in vehicle bed. Place a washer and nut over bolt
end. Using a wrench, tighten nut securely.
Reposition Handle
U-bolts
U-bolts
32 311283D
Technical Data
Sprayer GH833 Gas
Hydraulic Pressure psi (bar) 2750 (19.0)
Hydraulic Reservoir Capacity Gallon (liters) 4.0 (15.1)
Motor HP (kW) Honda 13 (9.7)
Maximum Delivery gpm (lpm) 4.0 (15.1)
Maximum Tip Size
• 1 gun .065
• 2 guns .046
• 3 guns .037
• 4 guns .032
• 5 guns .028
• 6 guns .026
Fluid Inlet inches 1-1/2 to 11-1/2 NPT (m)
Fluid Outlet inches 1 to 11-1/2 NPT (f)
Dimensions
Weight lb (kg) 360 (163)
Height inch (cm) 40 (101.6)
Width inch (cm) 27 (68.6)
Length inch (cm) 47 (119.3)
Sound Levels*
Sound Pressure 91 dB(A)
Sound Power 106 dB(A)
*measured at maximum normal load conditions
Technical Data
Graco-Approved Hydraulic Oil
169236 - 5 gallons (19 liters)
207428 - 1 gallon (3.8 liters)
311283D 33
Warranty
Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material
and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published
by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be
defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
ADDITIONAL WARRANTY COVERAGE
Graco does provide extended warranty and wear warranty for products described in the “Graco Contractor Equipment Warranty Program”.
mm 311283
This manual contains English
TO PLACE AN ORDER, contact your Graco distributor, or call 1-800-690-2894 to identify the nearest distributor.
All written and visual data contained in this document reflects the latest product information available at the time of publication.
34 311283D
Graco reserves the right to make changes at any time without notice.
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Korea, Japan
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440-1441
3/2006, Rev 2/2007
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