Turnstone Crew Task Chair Manual Download

Page: 7 / 16

Page 7 of 16

939500070 Rev E

Replacement of Back
Assembly (Continued)

Slide new back assembly

onto the chair while lightly pulling
height adjustment levers forward
(4a), then align with mechanism
and push down (4b). Release
adjustment levers (4c).

Summary of Contents for Crew Task Chair

Page 1: ...acement of Foot Ring Replacement of Back Assembly Replacement of Adjustable Height Insert Spring Replacement of Seat Slide Assembly Replacement of Seat Assembly Replacement of Arm Assembly Replacement...

Page 2: ...hair on its back 2 Pull wiggle the casters out Pry with a screwdriver if additional force is required Take care to not damage surfaces 3 Push the new casters in This should take minimal force CAUTION...

Page 3: ...r 3 Install the pneumatic cylinder removal tool part number 879100100 on the top part of the cylinder as close as possible to the chair control 4 Apply lifting force to the cylinder with one hand With...

Page 4: ...r Continued To install new Pneumatic Cylinder 5 Insert new cylinder into chair 5a Lightly tap once with a non marring hammer 5b 6 Set chair with new cylinder into the base of the chair 7 Adjust height...

Page 5: ...tion 2 Turn chair upside down or on its side Hold one of the legs of the five star base with one hand Hit the bottom of the cylinder with a non marring hammer 3 Turn the foot ring as shown and remove...

Page 6: ...are two white plastic teeth visible these are what need to be pushed forward to release the back Position the prying tool flat bladed screwdriver between the white plastic back shell and the control...

Page 7: ...ev E Replacement of Back Assembly Continued 4 Slide new back assembly onto the chair while lightly pulling height adjustment levers forward 4a then align with mechanism and push down 4b Release adjust...

Page 8: ...up on the arm assembly to disengage arm assembly from chair 4 Remove and dispose of the old spring and insert 5 Install new spring into arm assembly 6 Install new insert into arm tube 7 Squeeze and h...

Page 9: ...tions Screw Locations 2 3 Replacement of Seat Slide Assembly 1 Gently rest chair on its back 2 Remove eight 8 torx drive screws 3 Remove seat slide handle guards and seat slide handle brackets SEAT SL...

Page 10: ...must be replaced with the new screw If you have the intermediate screw and you are NOT replacing the seat apply loctite to the screws and reuse If you are replacing the seat use the supplied new screw...

Page 11: ...se of the chair When it doesn t go any farther release the seat pan from the seat control 2b 3 Mount new seat pan by inserting the front chair control mounts into the slot 4 Install seat and seat slid...

Page 12: ...mbly see page 9 2 Remove the four 4 screws Use a 1 2 wrench to prevent the T Nut if present from spinning 3 Remove old arm assembly 4 Mount new arm Attaching with the screws 5 Ensure the arm is square...

Page 13: ...not use a 1 2 wrench or similar to pry it and wiggle it the rest of the way off 2 Remove the Phillips screw 3 Push armcap towards the back 3a and rotate up on the front of the arm cap 3b 4 Put the new...

Page 14: ...sing a 3 16 allen wrench remove screw and the lever and other related hardware 3 Remove the arm 4 Install the clamp plate into the tube of the arm assembly 5 Push the arm assembly into the outer tube...

Page 15: ...m Toggle Continued 8 Install pivot pin into the cam lock lever 9 Turn the lever with pivot pin installed onto the screw 10 Adjust screw so that cam lock lever tightens and loosens the arm tube 11 Adju...

Page 16: ...e the arm assembly by performing steps 1 through 3 on page 11 4 Remove the pneumatic cylinder from the control by performing steps 1 through 4 on page 3 5 Place new chair control onto cylinder ensurin...

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