Instruction/ maintenance manual of the product M12xxx Graco
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Instructions/ Parts NXT ® Air Motor 312796R EN For use with high performance finis hi ng and coating pumps in ha zardous or non-hazardous locati ons. For professional use only . Models M02xxx, M04xxx, M07xxx, M12xxx, M18xx x, and M34xxx 100 ps i (0. 7 MPA, 7.
Relate d Manual s 2 312796R Contents Related Manua ls . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warn ings 312796R 3 Warnings The foll owing warni ngs are for the setup , use, ground ing, main tenance, a nd repair of this equ ipment. T he exclama - tion p oint symbo l alerts y ou to a g eneral warning and the hazar d symb ol refers to proced ure-specifi c risk.
Warnings 4 312796R PRESSURIZED EQUIPMENT HAZARD Fluid from the gun/ dispens e valve, leaks, o r ruptured c omponents can spla sh in the ey es or on s kin and cause seri ous injury. •F o l l o w Pressure Relief Procedure in this manual, when you s top spray ing and befor e cleaning, check ing, or serv icing eq uipment.
Models 312796R 5 Model s Check yo ur motor’s id entification plate (ID) fo r the 6-digi t part numb er of your motor. Us e the foll owing matrix to define the cons truction of your mot or. For example , motor part number M04LT0 repr esent s an a ir mo tor (M) , with 400 cc dis placemen t, a 3.
Component Id entifica tion 6 312796R Comp onen t Identi ficati on Key: AA i r v a l v e B Air in let, 1/4 in . npt(f) f or M02xxx a nd M04xx x model s, 1/2 in . npt (f) fo r M07x xx, M12 xxx, an d M18x xx mod els C Muffler (M18xx x models h ave a secon d muffler, se e inset.
Compone nt Identifica tion 312796R 7 Grou ndin g See F IG . 2. Ver ify that the g round scr ew (GS) is attached a nd tigh tened securel y to the ai r motor.
Troub leshooti ng 8 312796R Troubleshoot ing Relieve t he pressur e before che cking or s ervicin g the equip ment. NOTICE Check al l possibl e problem s and caus es befor e dis- assembl ing the pu mp. Problem C ause Solutio n Air m otor will no t run.
Repair 312796R 9 Repair Preventive Maintenance Schedule The ope rating cond itions o f your sy stem dete rmine h ow often m aintenanc e is require d. Establis h a prev entive maintenan ce sched ule by recor ding when a nd what kind of main tenance is nee ded, and then de termine a regular schedul e for ch ecking you r sys tem.
Repai r 10 312796R 4. For motors with DataTrak: If equipped with a run- away pro tection sol enoid, re move two sc rews (18) and the solenoi d bracket ( 26). Pu ll the so lenoid (25) out of th e air valve. 5. Remove s crews (18). Remo ve the ai r valve (17) a nd gaske t (16* ◆ ).
Repair 312796R 11 F IG . 6: Air va lve a sse mbly 118 ✠ 117 ✠ 106† ✠◆ 110 ◆✠ 25 110 ◆✠ 107 ✠ 107 ✠ 109† ◆ 105 ◆ 112 ◆ 111 ◆ 103 ◆ 102 ◆ ti11840 a 26 101 104 ◆ 32 31 110 ◆✠ 1 1 1 1 1 1 1 1 App ly lubric ant.
Repai r 12 312796R Reassembl e the Air Va lve 1. Lubricate d etent cam (104 ◆ ) and install into hous- ing. 2. Lubricate t he u-cups (108† ◆ ) and install on the pis - ton (102 ◆ ) with lips facing toward t he center of the piston. 3. Lubricate b oth end s of the pi ston (102 ◆ ) and ins tall it in the housing.
Repair 312796R 13 Replace Pilot Valves 1. Stop th e pump at th e middle of its stro ke. Relie ve the pres sure. See p age 9. 2. Disconn ect the air line to the motor. 3. Remove the ti e rod shiel d (TS). Slide the drip s hield (DS) do wn on the tie r ods.
Repai r 14 312796R Disas semble th e Air M otor 1. For motors with DataTrak: Remove screw to dis - conne ct the reed switch fr om the ai r valve. S ee F IG . 3, page 9. 2. Use a 10 mm so cket wren ch to remove fo ur screws (18). Remov e the air valve (17) and gask et (16* ◆ ).
Repair 312796R 15 7. See F IG . 12. Lub ricate and i nstall n ew u-cup se al with flang e (43*) in the bottom o f the be aring in the bottom co ver (1). T he u-cup must face up and the flange mu st face do wn. Lubri cate and ins tall new u-cup s eal (3*) in t he top of the bearing .
Parts 16 312796R Parts 19 13 12 11 17 20 14* 9* 9* 43* 3* 8* 5 15 18 19 10 22 31 26 25 16* ◆ 2 2 2 2 2 2 2 Apply l ubricant. Torque varies by motor size. M02xxx-M04xxx: 11-13 ft-lb (15-18 N•m ) M07xxx -M34 xxx: 25 -30 f t-lb (34- 40 N•m) 1 29 ti11900 a 28 34 1 2 30 1 39 2 40 42 3 U -cup faces up.
Air Motor Parts — All Model s 312796R 17 Air Motor Parts — All Models Ref. Des cription Qty M02xxx M 04xxx M07 xxx M12xx x M18xxx M 34xxx 1 COVER, l ower, assembl y (inclu des 3, 9, 19, 22, 28, and 43) 1 24A 541 24A 545 24C 398 24 A549 2 4A553 24A5 53 3* U-CUP 2 Not sol d separately .
Air Motor Parts — All Mod els 18 312796R * Included in Air Motor Seal Kit. See p age 21 . ▲ Replacem ent Warn ing label s, signs , tags, an d cards ar e availabl e at no cost. 25 SOLENOID/REED SWITCH, assem bly, for Da taTrak mo dels with runawa y protection , incl udes 18 ( qty.
Air Valve Part s 312796R 19 Air Valve Parts 117 ✠ 106† ✠◆ 110 ◆✠ 25 110 ◆✠ 107 ✠ 107 ✠ 109† ◆ 105 ◆ 112 ◆ 111 ◆ 103 ◆ 102 ◆ 108† ◆ 108 † ◆ 26 101 104 ◆ 32 3.
Air Valve Parts 20 312796R Air va lve part s are not s old indi viduall y. The ta ble below shows pos sible ki t options for each part. See page 21 to order the c orrect k it(s), or full r eplace ment air va lves, for y our moto r. † Include d in Air V alve Sea l Kit.
Kits and Acces sories 312796R 21 Kits a nd Acce ssorie s Kit Desc ription M02xxx M04xxx M07xxx M12xxx M18xx x M34xxx Complete Air Valve R eplacement Kit – Stand ard (No DataTrak or DataTrak with cyc.
Dime nsions 22 312796R Dimensions Air Motor Model A inch (mm) B inch (mm) C inch (mm) D inch (mm) E inch (mm) Weight lb (kg) M02xxx 6. 8 (173) 9.2 (234) 6.2 (15 7) 4. 2 (107) 5.1 (130) 4.5 (2.0) M04xxx 7. 0 (178) 9.4 (239) 8.4 (21 3) 6. 8 (173) 5.8 (147) 6.
Mountin g Hole Di agrams 312796R 23 Mountin g Hole Diagrams 3 in. (76 mm) 3 in. (76 mm) M02xxx (2.5 in.) M04xxx (3.5 in.) Two M8 mountin g holes Three 3/8-24 tie rod ho les 3-1/ 4 in. (83 mm) bolt c ircle Two M 8 mounti ng holes ti1273 4a ti12733 a ti12 736a ti12735 a 2.
Mountin g Hole Di agrams 24 312796R 4 in. (102 mm) 4 in. (102 mm) M12xxx (6 in.) Four M8 X 1.2 5 optional mounting holes Four M8 X 1.25 opti onal mount ing ho les Thre e 5/8- 11 tie r od holes Two M8 mountin g holes 5.906 in. (150 mm) bolt circ le Two M8 mount ing ho les Three 5/8- 11 tie rod h oles 5.
Technica l Data 312796R 25 Technical Data * Sound p ower at 70 psi (0.48 M Pa, 4.8 bar ), 20 cpm. Sound powe r measured per ISO- 9614-2. ** Sound pressu re was teste d 3.28 f eet (1 m) from equipm ent. Maximu m air inlet pressu re . . . . . . . . . . .
All written and visual data contained in this document reflects t he latest product information available at the time of publica tion. Graco rese rves the right to make changes at any time without notice. This m anual contains English. MM 312796 Graco H eadquarte rs: Minnea polis International O ffices: Belgiu m, Chin a, Japan, Korea GRACO INC.
An important point after buying a device Graco M12xxx (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Graco M12xxx yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Graco M12xxx - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Graco M12xxx you will learn all the available features of the product, as well as information on its operation. The information that you get Graco M12xxx will certainly help you make a decision on the purchase.
If you already are a holder of Graco M12xxx, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Graco M12xxx.
However, one of the most important roles played by the user manual is to help in solving problems with Graco M12xxx. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Graco M12xxx along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
