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Air Motor and Throat Service

309868E

9

12. Remove the o–ring (18*) from the air motor 

piston (34).

13. Clamp the displacement rod upright in the vice by 

closing the vice jaws on the flats of the displace-
ment rod.

14. Use a screwdriver to push down on the trip rod 

yoke (23) to snap the toggle assemblies (L) down. 
See F

IG

. 4. 

15. Remove the lockwires (25*) from the adjusting 

nuts (24*) of the transfer valves. Screw the top nuts 
off. Screw the valve poppet (32*) stems out of the 
grommets (17*) and bottom nuts (24*). Take the 
valve poppets off of the stems, and squeeze them 
firmly to check for cracks.

16. Grip the toggle arms (38) with pliers. Compress the 

springs (20) and swing the toggle assembly (L) up 
and away from the piston lugs (M), and remove the 
assembly. Check that the valve actuator (27) is sup-
ported by the spring clips (26), but slides easily into 
them. See Fig. 4. 

17. Remove the trip rod yoke (23), actuator (27), and 

trip rod (40). Check the exhaust valve poppets (31*) 
for cracks. 

Clean and Service

1.

Clean all the parts carefully in a compatible solvent 
and inspect for wear or damage.  Use all the repair 
kit parts during reassembly, and replace other parts 
as necessary. 

2.

Check the polished surfaces of the air motor 
piston (34), displacement rod (29), and cylinder 
wall (35) for scratches or wear. A scored rod will 
cause premature packing wear and leaking.

3.

Lubricate all parts with a light weight, water-resis-
tant grease.

Reassembly

1.

Clamp the displacement rod (29) upright in the vice 
by closing the vice jaws on the flats of the displace-
ment rod.

2.

Pull the new exhaust valve poppets (31*) into the 
valve actuator (27), and clip off the top parts of the 
poppets (shown with dotted lines in the Cutaway 
View
 in Fig. 4). 

3.

Install the new grommets (17*) in the actuator (27), 
place the inlet valve poppets (32*) in the piston, and 
thread the bottom valve nuts (24*) onto the stems of 
the inlet valve poppets until there are a few threads 
left before the threads run out. 

4.

Grease heavily and place the trip rod (40) in the air 
motor piston (34), place the actuator (27) in the 
yoke (23), and place the well–greased actuator/yoke 
assembly in the piston, with the trip rod going 
through the center holes of the actuator and yoke 
and the stems of the inlet valve poppets (32*) going 
through the grommets (17*).

5.

Thread the top valve nuts (24*) onto the stems of 
the inlet valve poppets (32*) until one thread of the 
inlet valve poppets is exposed above the valve nuts.

6.

Install the toggle pins (36) in the yoke (23), place the 
toggle arm (38) ends of the toggle assembly (L) 
onto the toggle pins, and snap the pivot pin (37) 
ends of the toggle assembly into the piston lugs (M).

7.

Measuring with the gauge (Part No.15E796), create 
0.105 in. (2.7 mm) of clearance between the inlet 
valve poppets (32*) and the piston seat when the 
inlet valve is open. See the Cutaway View in Fig. 4.

8.

Tighten the bottom valve nuts (24*) by hand. The 
grommets (17*) should be slightly compressed.

To reduce the risk of pinching or amputating your fin-
gers, always keep fingers clear of the toggle
assemblies (L).

To remove the exhaust valve poppets (31*), stretch 
them out and cut the end off with a sharp knife.

If you thread the valve nuts too far down onto the 
poppets, they will run off the threaded part of the 
poppets.

Adjust the distance between the inlet valve poppets 
and the piston seat by turning the top valve 
nuts (24*).

Содержание Mini Fire-Ball 248097

Страница 1: ...r Maximum Air Input Pressure Contents Warnings 2 Installation 4 Operation 6 Troubleshooting 7 Air Motor and Throat Service 8 Displacement Pump Service 12 Parts 14 Technical Data 16 Performance Chart 1...

Страница 2: ...te hoses and cables away from traffic areas sharp edges moving parts and hot surfaces Do not use hoses to pull equipment Comply with all applicable safety regulations PRESSURIZED EQUIPMENT HAZARD Flui...

Страница 3: ...ispose of it according to applicable guide lines FIRE AND EXPLOSION HAZARD Flammable fumes such as solvent and paint fumes in work area can ignite or explode To help pre vent fire and explosion Use eq...

Страница 4: ...ontact your Graco distributor for assistance in designing a system to meet your needs A B C D E F G H L J K M Key A Bleed type master air valve B Air line filter C Air regulator and gauge D Air inlet...

Страница 5: ...properly grounded fluid hose and pump Fluid supply container Follow your local code Object being lubricated Follow your local code Any pails used when flushing Use only metal grounded pails when flus...

Страница 6: ...he supply container is empty and air has been pumped into the lines prime the pump and lines with fluid or flush it and leave it filled with a compat ible solvent Be sure to eliminate all air from the...

Страница 7: ...etc Clear Damaged air motor Service air motor Exhausted fluid supply Refill and reprime or flush Continuous air exhaust Worn or damaged air motor gasket packing seal etc Service air motor Erratic pum...

Страница 8: ...of the displace ment rod and remove the packing o ring 102 from the fluid piston See Parts page 14 6 Clamp the air motor upright in the vice by closing the vice jaws below the flange 7 Unscrew the cyl...

Страница 9: ...31 into the valve actuator 27 and clip off the top parts of the poppets shown with dotted lines in the Cutaway View in Fig 4 3 Install the new grommets 17 in the actuator 27 place the inlet valve pop...

Страница 10: ...lide the displacement rod 29 down through the packings and lower the air motor piston 34 into the air motor base 28 14 Clamp the air motor upright in the vice by closing the vice jaws below the flange...

Страница 11: ...a vise horizontally by closing the vice jaws on the flange 22 Use a strap wrench to screw the displacement pump cylinder 105 to the air motor base 28 and torque to 40 to 60 ft lb 54 to 81 N m 23 Befor...

Страница 12: ...ylinder for scoring or irregular surfaces Such damage causes premature packing wear and leaking so replace the part if it is damaged 5 Using wrenches on the flats of the displacement rod 29 and on the...

Страница 13: ...Displacement Pump Service 309868E 13...

Страница 14: ...Parts 14 309868E Parts 39 15 35 25 24 17 24 32 105 29 34 18 26 10 40 23 38 20 37 36 13 19 46 28a 9 47 7 28 16 103 100 107 102 104 27 31 30 108 101 106 1 1 Lips face down Air Motor Pump TI4016b...

Страница 15: ...5C249 ACTUATOR valve 1 28 253580 BASE motor air includes 28a 1 28a 116343 SCREW grounding 1 29 15C252 ROD displacement mp 1 30 15C266 GASKET copper 1 31 15C267 POPPET valve exhaust 2 32 248211 POPPET...

Страница 16: ...fm 2 1 gpm 241 m3 min 7 9 lpm Dry suction lift feet of water 23 Wetted materials steel polyurethane aluminum buna N Rulon Air inlet port size 3 8 in npt f Fluid inlet port size 1 5 in npt f Fluid outl...

Страница 17: ...Pump Base Order gasket 15R881 for sealed tank drum mounting 2 518 in 6 4 cm dia grounding screw 1 2 in npt f fluid outlet 3 8 in npt f air inlet 8 9 in 20 cm 40 68 in 103 33 cm drop tube is cut to len...

Страница 18: ...ill 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...

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