Keiser Keiser 300 Parts And Maintenance Manual Download Page 1

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Keiser 300 / Air 300

Parts and

Maintenance

Manual

Summary of Contents for Keiser 300

Page 1: ...Keiser 300 Air 300 Parts and Maintenance Manual...

Page 2: ...ery Decals 25 Parts Identification 26 SAFETY CAUTIONS We ve put a number of safety cautions in this book We use the word CAUTION to tell you about things that could cause bodily injury to persons on o...

Page 3: ...3...

Page 4: ...cles which may be harmful to the cylinders When the increase valve is depressed the air flows into the cylinders tanks and gauge through one or more manifolds Moving the exercise arm through its range...

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Page 7: ...ion again If the fitting still leaks the nut must be replaced In most cases the air hose should be long enough to allow this if not order a new air hose from KEISER To install a new nut TOOLS REQUIRED...

Page 8: ...KEISER 2 To shorten the hose unscrew chrome compress align nut from the quick disconnect and cut the hose to the desired length Slide a new chrome nut an extra one is supplied with each machine onto...

Page 9: ...ACED IMMEDIATELY NOTICE IF FILTER BOWL IS CRACKED AN AIR LEAK COULD RUN THE COMPRESSOR CONTINUOUSLY PUTTING EXCESSIVE WEAR ON THE COMPRESSOR The internal parts of the filter and the bowl can be cleane...

Page 10: ...onnections on the filter or manifold An increase valve is connected to two hoses one from the filter and one to the manifold Decrease valves are connected to one hose from the manifold and one from th...

Page 11: ...of the valve housing with solvent and compressed air Do not use any kind of tool inside the housing Inspect the bore for scratches or wear of any kind The housing should be replaced if there are any...

Page 12: ...ber 1985 have nuts and bolts holding the valves in place Later machines use only flat head screws for easier access to the valves The procedure described here applies specifically to the older machine...

Page 13: ...ck the adjusting screw in place with Loctite 292 VALVE SERVICING TOOLS REQUIRED 1 2 inch wrench or socket rag DOW CORNING 111 1 Remove the brass valve cartridge from the aluminum housing Make sure tha...

Page 14: ...n oil can REMOVAL 1 Unplug the quick disconnect from the air system and reduce the resistance to zero 2 Remove the air hose from the cylinder It is best to remove one cylinder at a time If both cylind...

Page 15: ...IT IS VERY IMPORTANT THAT THE CYLINDER ROD AND BORE ARE NOT SCRATCHED OR DAMAGED IN ANY WAY DAMAGED CYLINDER RODS AND BORES ARE AREAS FOR POSSIBLE AIR LEAKS TOOLS REQUIRED 11 16 wrench or socket inte...

Page 16: ...KEISER to hold wear strips in place during assembly Lightly coat the bore cup seal piston and wear strips with MT 55 light grease NOTICE OPEN END OF CUP SEAL MUST FACE AWAY FROM THE CYLINDER ROD Caref...

Page 17: ...ghtening the nut MUFFLERS The mufflers on the rod ends of the cylinders should be replaced at any time cylinder problems are suspected Removing the muffler and moving the exercise arm through its rang...

Page 18: ...WILL CRUSH THE TUBE AND DESTROY THE CHROME FINISH TOOLS REQUIRED drift punch and a hammer Spring pins are used to hold a shaft in place or to fasten a collar to a shaft With the exception of the arm l...

Page 19: ...t 2 Tap the new spring pin into the bracket or collar until the end of the pin is flush with the outside Be careful not to damage chrome NOTICE SEE THE SPECIAL INSTRUCTIONS ADJACENT TO THE PARTS LIST...

Page 20: ...CHROME 2 Pry off the white plastic locking sleeve with a screwdriver 3 Using a 5 16 drift punch drive the spring through and out of the shaft The shaft and spring pin can now be removed REPLACING THE...

Page 21: ...QUALITY HARDENED INCH ALLEN WRENCH USE OF INFERIOR TOOLS CAN DAMGE THE MACHINE AND MAY CAUSE INJURY TO HANDS OR ARMS IF WRENCH STRIPS OUT T 88 BEARING REMOVAL 1 Disconnect linkages from exercise arms...

Page 22: ...a pivot shaft and one silver and one black flat head hex socket FHHS screw These bearings are permanently lubricated at KEISER and do not need any other lubrication The T 88 bearing assembly should be...

Page 23: ...LPS cleaner degreaser or rubbing alcohol alcohol will require extra work to remove all traces of adhesive NOTICE DO NOT GET ALCOHOL OR DEGREASER IN THE THUMB BUTTON CAUTION FAILURE TO REMOVE ALL ADHE...

Page 24: ...h tighten the set screws to of a turn past finger tight Do not over tighten 8 This is what the grip sleeve and end cap should look like when you are done 9 Allow at least 4 hours for the alcohol to dr...

Page 25: ...d at a lower cost than replacing the whole cushion Contact KEISER for details DECAL REMOVAL AND REPLACEMENT Damaged decals can be removed by simply peeling them off the surface The surface must then b...

Page 26: ...bers The four digit part numbers are standard fasteners and fittings available through most hardware stores Bolts and nuts are zinc or nickel plated and are a minimum of grade 5 Pneumatic fittings are...

Page 27: ...go Both should stop at the same level If they do not adjust the cylinder of the higher arm down to the level of the lower as described in the Maintenance Manual pg 13 4 Increase the resistance and do...

Page 28: ...Both should stop at the same level If they do not adjust the cylinder of the higher arm down to the level of the lower as described in the Maintenance Manual pg 13 4 Increase the resistance and do se...

Page 29: ...NOT TO SCRATCH OR DENT CHROME Turn the right cylinder shaft as needed to bring the arm to a point just touching or slightly away from the stop shaft Tighten the right cylinder shaft jam nut 4 Increase...

Page 30: ...s that the exercise arms rest against These must not be worn or damaged in any way If they are worn replace them before attempting to adjust a cylinder 2 Pull up on the rod until the cam follower touc...

Page 31: ...g of the exercise 3 If the cylinder is not bottomed out check the number of threads above the jam nut There should be 3 to 5 threads visible If more threads are visible the machine will not have a ful...

Page 32: ...e spring pin should stick out 1 16 from each side of the adjusting drag link bottom 2 To install the spring pin 3 16 X 7 8 item 2 in the exercise arm mount item 4 line up the hole in the exercise arm...

Page 33: ...ISE ARMS WHEN RESTING THEM ON THE STOP BOLTS 3 Loosen the jam nuts on the cylinder rods pg 13 maintenance manual Adjust the right cylinder rod so there is about 1 8 inch between the bottom of the exer...

Page 34: ...about 15 degrees past vertical 3 Raise the right exercise arm and compare it to the left Both should stop at the same position Check by inserting the lock pin It should easily go through the holes in...

Page 35: ...hem before attempting to adjust a cylinder 2 With the resistance at zero check the feel of the movement of the machine If the rod seems to stick or hesitate at full extension the piston may be bottome...

Page 36: ...fore attempting to adjust a cylinder 2 Remove the crutch tips and loosen the cylinder jam nuts Increase the resistance up a little NOTICE BE CAREFUL NOT TO DAMAGE THE CHROME Adjust the right cylinder...

Page 37: ...adjust a cylinder 2 Make sure the right cylinder is not bottomed out against the end housing A bottomed out cylinder will feel sticky or hesitant at the beginning of the stroke If the piston is botto...

Page 38: ...the snap and the hole in the handle for wear Visually inspect the cable paying close attention to those areas that pass over pulleys Small cracks that go around the outside of the plastic cover indica...

Page 39: ...tips that the exercise arms rest against These must not be worn or damaged in any way If they are worn replace them before attempting to adjust a cylinder 2 Pull one of the exercise arms forward as f...

Page 40: ...ition of the rubber crutch tips that the exercise arms rest against These must not be worn or damaged in any way If they are worn replace them before attempting to adjust a cylinder 2 If the cylinder...

Page 41: ...o adjust a cylinder 2 Adjust the left cylinder so that 7 9 threads are visible outside the jam nut pg 13 maintenance manual Decrease the resistance all the way down and push the left exercise arm all...

Page 42: ...ches the cam With no machine resistance check the feel of the movement of the machine If the rod seems to stick or hesitate at full extension the piston may be bottomed out against the end housing If...

Page 43: ...k the condition of the rubber crutch tips that the exercise arms rest against These must not be worn or damaged in any way If they are worn replace them before attempting to adjust a cylinder 2 With t...

Page 44: ...am nuts on the arm stop bolts Adjust the stop bolts so that the ends extend about through the ear on the center frame NOTICE BE CAREFUL NOT TO SCRATCH THE CHROME ON THE BACK OF THE LEVER ARM WHEN REST...

Page 45: ...xercise at the very beginning of the stroke A sticky or hesitant feel at the start could indicate a bottomed out cylinder when the piston is up against the end housing In this case both of the stop bo...

Page 46: ...s from the crutch tip bolts at the bottom of the seat frame 2 With your hands clear off the machine Push the increase button until both exercise arms raise up completely and the gauge reads about 80 p...

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Keiser Keiser 300, Parts And Maintenance Manual

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