HP 200 Service Manual page 138

7 Grasp the cam journal on the left side of the plotter with your left hand.
8 Reach around to the front of the plotter and push the top of the bar cam slightly towards
the rear of the plotter, simultaneously pulling the cam journal to the left, so that the bar
cam can begin to slide out of the left sideplate.
Left sideplate
Bar cam
Cam journal
0D2 DmbtinJ: Pos t on the bar cam bDtwDDn the left and r ght s deplates, or the l ft
mechan sm w ll not work.
9 While pressing the right most pinch arm assembly towards the rear of the plotter against
its spring tension, slide the bar cam left until it clears that pinch arm assembly.
10 Remove the pinch arm assembly and spring from the chassis.
Take care that the spr ng does not fall.
Pinch arm assembly
11 Repeat the previous two steps until all of the pinch arm assemblies have been removed or
until you have removed the pinch arm assembly that is to be replaced.
6 74 Removal and Replacement
Bushing
Spring
Pinch arm
C3187 90000