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309942

General Repair Information

Pressure Relief Procedure

WARNING

INJECTION HAZARD

System pressure must be manually
relieved to prevent system from starting
or spraying accidentally. Fluid under high

pressure can be injected through skin and cause
serious injury. To reduce risk of injury from injec-
tion, splashing fluid, or moving parts, follow 

Pres-

sure Relief Procedure

 whenever you:

D

are instructed to relieve pressure,

D

stop spraying,

D

check or service any system equipment,

D

or install or clean spray tip.

1.  Turn pressure to zero.

2.  Turn ON/OFF switch to OFF.

3.  Unplug power supply cord.

4.

Hold metal part of gun firmly to grounded metal
pail. Trigger gun to relieve pressure.

5.  Lock gun safety latch.

6.  Open prime valve. Leave prime valve open until

ready to spray again.

If suspected that spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following steps above

, VERY SLOWLY loosen tip

guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Now clear
tip or hose obstruction.

CAUTION

To reduce risk of pressure control malfunction:

D

Use needle nose pliers to disconnect wire. Never
pull on wire, pull on connector.

D

Mate wire connectors properly. Center flat blade of
insulated male connector in female connector.

D

Route wires carefully to avoid interference with
other connections of pressure control. Do not pinch
wires between cover and control box.

1.

Keep all screws, nuts, washers, gaskets, and
electrical fittings

 removed during repair proce-

dures. These parts are not normally provided with
replacement assemblies.

WARNING

ELECTRIC SHOCK HAZARD
MOVING PARTS HAZARD
HOT SURFACE HAZARD

To reduce risk of serious injury, including
electric shock, do not touch moving or
electrical parts with fingers or tools while
testing repair. Shut off and unplug spray-
er when inspection is complete. Install all
covers, guards, gaskets, screws, wash-
ers  and shroud before operating
sprayer.

2.

Test repair 

after problem is corrected.

3.

If sprayer does not operate properly

, review

repair procedure to verify procedure was done
correctly. If necessary, see Troubleshooting, pages
6 – 9, for other possible solutions.

Grounding

WARNING

Improper installation or alteration of grounding plug
results in risk of electric shock, fire or explosion
that could cause serious injury or death.

1.

Ultimate Mx II 695, 795 and 1095 100–120 Vac
models require a 50/60 Hz, 15A circuit with a
grounding receptacle. Ultimate Mx II 1595 120 Vac
models require a 50/60 Hz 20A circuit with a
grounding receptacle; 220–240 Vac models require
a 50/60 Hz, 10A circuit with a grounding recep-
tacle. See Fig. 2.

2.

Do not alter ground prong or use adapter.

Fig. 2

Grounding Plug

Grounded
Outlets

3.

120 Vac: A 12 AWG, 3 wires with grounding prong,
300 ft (90 m) extension cord may be used.
220–240 Vac: You may use a 3-wire, 1.0 mm (12
AWG) (minimum) extension cord up to 90 m long.
Long lengths reduce sprayer performance.

Summary of Contents for Ultimate Mx II 1095

Page 1: ...826049 North America Premium 826042 1095 Standard 826050 Premium 826044 1595 Standard 826054 826051 Premium 826053 826045 Not ETL Approved ti4281a Repair GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 ECOPYRIGHT 2004 GRACO INC Graco Inc is registered to I S EN ISO 9001 Ultimater Mx II 695 795 1095 1595t Airless Sprayers 309942 Rev F 826042 R ...

Page 2: ...ir Information 5 Grounding 5 Troubleshooting 6 Mechanical Fluid Flow 6 Electrical 7 Pressure Control Repair 10 Drive and Bearing Housing Replacement 12 Motor Replacement 14 Displacement Pump Replacement 16 3 D Wiring Diagram 17 Technical Data 18 Dimensions 18 Graco Phone Number 18 ...

Page 3: ...tip D Do not stop or deflect leaks with your hand body glove or rag D Do not spray without tip guard and trigger guard installed D Engage trigger lock when not spraying D Follow the Pressure Relief Procedure on page 5 if the spray tip clogs and before cleaning checking or servicing the equipment ELECTRIC SHOCK HARZARD Improper grounding setup or usage of the system can cause electric shock D Turn ...

Page 4: ...d outlet pressure at displacement pump outlet Works with pressure adjusting knob K ON OFF Switch Power switch that controls main power to sprayer M 50 ft 15 m Main Hose 1 4 in ID grounded nylon hose with spring guards on both ends N Spray Gun High pressure spray gun with gun safety latch P Spray Tip Uses high pressure fluid to clear tip clogs without removing tip from spray gun R HandTitet Tip Gua...

Page 5: ...s of pressure control Do not pinch wires between cover and control box 1 Keep all screws nuts washers gaskets and electrical fittings removed during repair proce dures These parts are not normally provided with replacement assemblies WARNING ELECTRIC SHOCK HAZARD MOVING PARTS HAZARD HOT SURFACE HAZARD To reduce risk of serious injury including electric shock do not touch moving or electrical parts...

Page 6: ... 8 Prime valve leaking 8 Relieve pressure Repair prime valve 9 Verify pump does not continue to stroke when gun trigger is released Prime valve not leak ing 9 Service pump See page 16 10 Leaking around throat packing nut which may indicate worn or damaged packings See page 16 10 Replace packings page 16 Also check piston valve seat for hardened paint or nicks and replace if necessary Tighten packi...

Page 7: ...required voltage is present 2 Check wiring connections to control board 3 Perform continuity check on power cord and switch Replace power cord or switch as needed 4 If steps 1 3 are ok replace control board psi Blinks once and stops No RUN command to control board Potentiometer or transducer problem 1 Make sure prime valve is open and there is no pres sure in the system 2 Turn pressure control kno...

Page 8: ...ay be clogged 1 Check fluid path for clogs such as a clogged filter 2 Open prime valve and gun if running AutoClean 3 Use airless paint spray hose with no metal braid 1 4 in x 50 ft minimum Smaller hose or metal braid hose may result in high pressure spikes 4 Replace transducer if fluid path is not clogged and proper hose is used E 03 Blinks 3 x repeat edly Transducer or transducer connec tion err...

Page 9: ... E 09 Blinks 9 x repeat edly Motor sensor failure Make sure motor sensor resolver is connected to the control board and check wiring for damage E 10 Blinks 10 x repeat edly High control board temperature 1 Make sure the motor air intake is not blocked 2 Make sure control board is properly connected to the back plate and that conductive thermal paste is used on the power components Fig 3 E 11 Blink...

Page 10: ...nents 2 Install motor control board 95 with five screws 27 Torque to 10 12 in lb 1 13 1 35 N m Install and torque three screws 102 to values shown in Fig 3 3 Connect motor connectors F G and H to motor control board 4 Install control box 61 with top two screws 39 5 Connect transducer connector E to motor control board 6 Connect 15 20A switch 178 1595 7 Connect motor control board power lead s D to...

Page 11: ...ove grommet 40 from transducer and save for reuse Installation 1 Install o ring 20 and transducer 86 in filter base 67 Torque to 35 45 ft lb 47 61 N m 2 Install grommet 40 onto transducer 86 3 Connect transducer connector E to motor control board 4 Install control box 61 and control panel 68 with four screws 39 5 Connect potentiometer connector C to motor control board 6 Install cover 96 with four...

Page 12: ... and washers 12 to remove bearing housing 83 and connecting rod 85 7 Remove five screws 6 and pull drive housing 90 off motor 84 Assembly Fig 5 Make sure gear 89 and thrust washers 28 30 90a 36 are in place Brush grease onto gear teeth 1 Fig 4 Push drive housing 90 onto motor 84 and install with five screws 6 Torque to 190 210 in lb 21 23 N m 2 Install bearing housing 83 with four screws 14 and wa...

Page 13: ...13 309942 Fig 4 85 44 43 12 14 55 31 56 24 31 51 6 84 72 31 90 108 ti4253a 83 ...

Page 14: ...or wires and power bar plate 69 9 Remove two screws 23 and nuts 19 on side opposite control 10 Loosen two nuts 19 on side near control and remove motor 84 from cart frame 62 Installation 1 Slide new motor 84 under two screws 23 in cart frame 62 near control 2 Install two screws 23 and nuts 19 on motor side opposite control 3 Tighten all four screws 23 and nuts 19 Torque nuts to 115 135 in lb 13 15...

Page 15: ...15 309942 Fig 5 39 38 96 68 89 28 30 36 84 23 23 29 27 61 19 19 ti4254a 6 31 51 31 58 31 14 12 90A 90 69 95 LED Status Light ...

Page 16: ...ts could project through the air and result in serious injury or prop erty damage CAUTION If the pump jam nut loosens during operation the threads of the drive housing will be damaged 1 Fig 8 Extend pump piston rod 1 5 in Apply grease to top of pump rod at A or inside connect ing rod Fig 8 1 5 in A ti4258a 44 43 2 Install pump pin 44 Verify retaining spring 43 is in groove of connecting rod 85 3 P...

Page 17: ...17 309942 3 D Wiring Diagram Fig 11 See Parts manual for wiring schematic 39 38 96 68 61 29 ti4251a ...

Page 18: ...Hi boy Lo Boy Hi Boy in cm in cm 695 94 43 94 43 26 5 67 3 Handle down 38 8 98 6 Handle up 28 5 72 4 Handle down 38 75 98 4 Handle up 25 75 65 4 20 5 52 1 795 98 45 98 45 26 5 67 3 Handle down 38 8 98 6 Handle up 28 5 72 4 Handle down 38 75 98 4 Handle up 25 63 5 20 5 52 1 1095 N A 120 55 N A 29 5 74 9 Handle down 38 5 97 8 Handle up 26 66 22 5 57 2 1595 N A 125 57 N A 29 5 74 9 Handle down 38 5 9...

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