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RA27 SERVICE

BACK END / ADVANCE LEVER

21. Find the power adjust dial

assembly. Unthread this from the
indicator slider.

22. Note that there is a ball detent

under the threaded portion.

23. Remove the Control Rod. Note

the orientation of the spring on
the end of the control rod.

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Summary of Contents for RA27

Page 1: ...07 2019 RA27 TOOL SERVICE MANUAL...

Page 2: ...s also important to be able to accurately describe a condition using the correct terminology When troubleshooting or servicing a tool it is always important to function test the tool first Always chec...

Page 3: ...s replace 4 Inspect piston for wear or damage 5 Inspect replace retention ball and clip in muzzle Tool clicks or fires once and next load does not advance Cause Check strip tracks and load advance lev...

Page 4: ...Cocking rod loose damaged Tool is difficult to close the front end or sticks at times Cause Tool is dirty or has a broken component 1 Clean front end of tool Follow instruction in this manual Follow i...

Page 5: ...retention clip and ball Inconsistent fastening is likely to be caused by dirt and debris preventing the piston from falling back into position Damage to the pawls may also be a contributing factor Th...

Page 6: ...k on the tool Lift off the collar A rubber strap wrench may be needed to turn the collar 3 Grasp the Barrel Assembly and then pull open the two pawls Use caution as the barrel is under light spring pr...

Page 7: ...r powder actuated tools 8 Industrial spray solvents or automotive brake cleaners that are safe for plastic can be used to remove other oils and debris The use of any lubricant on reassembly is not rec...

Page 8: ...lapping paste 12 To reassemble place the Piston into the Barrel Piston should be pushed all the way to the back of the Barrel 13 Insert the Buffer into the end of the Fastener Guide as shown Push int...

Page 9: ...tener Guide over Barrel Apply slight pressure to the top side of the fastener guide while threading the knurled collar It helps to firmly push the Fastener Guide onto the Barrel before threading This...

Page 10: ...how to do this 1 Begin by removing the rubber Backend Cover from the rear of the tool The cover is held in place by a rubber tab feature fitting into a recess in the rear hook assembly plate Locate a...

Page 11: ...e off with the plate 4 To remove the Rear Handle Grip turn the tool over and locate the screw at the base of the handle Using a 3mm hex key wrench remove the screw 5 Once the screw is removed slide th...

Page 12: ...and maneuver the Compartment from the orange housing Next remove the Trigger Spring from the backside of the trigger 9 Before removing the Mech Housing Assembly take note of the position of the Relea...

Page 13: ...of components 12 Mech Housing Assembly removed from tool housing Note the use of grease in several places in the Mech Housing The small amount of grease will help lubricate moving parts 13 Note positi...

Page 14: ...moved from the Housing the pawls should fall out of position 16 Note the pawls just fall out of place The pawls collect a fair amount of residue Be sure to remove the residue to allow for smooth opera...

Page 15: ...operation A white lithium grease or similar with a wide working temperature of 0 F to 300 F or better should be used CRC SUPER WHITE MULTI PURPOSE LITHIUM GREASE No SL3150 19 Note the Releaser and Rel...

Page 16: ...R 21 Find the power adjust dial assembly Unthread this from the indicator slider 22 Note that there is a ball detent under the threaded portion 23 Remove the Control Rod Note the orientation of the sp...

Page 17: ...s the advance lever Inspect the advance lever for straightness and determine it is not bend or damaged One reason a tool may not advance the load is dirty strip load tracks A damaged advance lever cou...

Page 18: ...r that is safe for plastic material and will dissolve the grease and debris 27 After cleaning the Mech Housing and its associated parts reassembly can begin The next several photos are for reference i...

Page 19: ...l Key should rotate itself and the Control Rod Once fully assembled set the Mech Housing aside for a moment 29 Clean the Outer Housing Pawls and Receiver Reassemble these components into the front of...

Page 20: ...he Mech Housing will stop at a point where the advance lever is against the rear part of the receiver 32 Push the Trigger and make the Link Rod move to the end The photos below show additional detail...

Page 21: ...e applying slight pressure on the back of the Mech Housing This will cause it to slide into place As you apply pressure to the Mech Housing care should be taken as to not push the Receiver out of the...

Page 22: ...pring This item is held in place by the pressure of the trigger spring and confined by the Tool Housing and Mech Housing 37 Locate the Rear Handle Swivel Hook and Swivel Hook Spring Assemble the compo...

Page 23: ...ers can be inserted into the Mech Housing first The alternate method is to place the rear screws through the back end cap and then slide the tube spacers over the screws The assembly can be placed int...

Page 24: ...to twist the Back End Cover to fully seat 43 Once the back end is fully assembled the front end can then be reassembled Refer to the previous chapter or the operator s manual on how to reassemble the...

Page 25: ......

Page 26: ......

Page 27: ...pushed rearward while the front barrel assembly will be pushed forward If separation of these two components reaches a certain point an impact occurs internally in the barrel between the piston buffe...

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