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HP Indigo ws4500 Rewinder Service - Page 72

Replace the balloon if necessary.

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14. Loosen the 2 screws in the bracket at each end of the inflatable piston. There are 3 pistons. Remove the brackets on each of the 3 pistons. 15. Slide the pistons out of the housing. 16. Slide the inflatable balloon out of the housing. Be careful not to lose the rubber O-ring which seals between the inflatable balloon and the housing. 17. Replace the balloon if necessary. 18. Return the balloon to the housing. Underneath the end brackets that were removed above in step 15, there are metal shims to hold the balloon in place. One shim has 2 sets of ridges and the other shim has Replacing the drive shaft and the inflatable balloons (for the new type shaft p/n CU153-02574) 69

Section	Page
1. Overview	4
2. Procedures	6
Introduction	6
Calibrating the dancer potentiometer	6
At the rewinder cabinet	6
At the rewinder potentiometer	7
Calibrating the rewinder	9
Calibrating the dancer	9
At the touch screen panel (TSP)	10
At the TSP	11
Calibrating the ultrasonic sensor	11
Replacing the dancer glass cylinder	13
Preparation for replacing an idler	14
Removing the splicing table	14
At the rear of the rewinder	15
Replacing an idler	15
At the rewinder	16
Reinstalling the splicing table	19
At the rear of the rewinder	19
Replacing the motor and/or motor gear	20
Preparation for replacing the motor and/or motor gear	20
Replacing the motor gear	20
Replacing the servo motor	23
Installing a new packer arm	31
Installing the internal packer arm assembly	31
Preparing the external packer arm assembly	40
Installing the external packer arm assembly	42
Preparing the tubes	44
Installing the main tube	44
Installing the clamp tube	45
Installing the short tube	50
Installing the engagement and disengagement tubes	52
Replacing the packer arm	57
Disassembling the packer arm	57
Disassembling the packer arm adjustable external assembly	58
Installing the new packer arm	59
Aligning the packer arm	59
Replacing the web guide	60
Old type of web guide	62
Replacing the old type of web guide	62
Setup instructions	63
Stage #1	63
Stage #2	64
Parameter declaration	65
Resetting the web guide ultrasonic sensor (new type)	67
Replacing the drive shaft and the inflatable balloons (for the new type shaft p/n CU153-02574)	67
Replacing the inflatable balloon for older shafts (p/n CU153-02583)	76
Rewinder 12P controller	80
Adjusting the rewinder I2P controller	80
Modifying the I2P controller parameters	81
Theory of operation	82
Appendix 1- Grease and oil types	83
Appendix 2- Blocking Unwinding	83
What to do if the blocking is too high	86
A. Revision history and confidentiality notice	87
Revision History	87
Printing instructions	87

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14.

Loosen the 2 screws in the bracket at each end of the inﬂatable piston. There are 3 pistons. Remove the

brackets on each of the 3 pistons.

15.

Slide the pistons out of the housing.

16.

Slide the inﬂatable balloon out of the housing. Be careful not to lose the rubber O-ring which seals

between the inﬂatable balloon and the housing.

17.

Replace the balloon if necessary.

18.

Return the balloon to the housing. Underneath the end brackets that were removed above in step 15,

there are metal shims to hold the balloon in place. One shim has 2 sets of ridges and the other shim has

Replacing the drive shaft and the inﬂatable balloons (for the new type shaft p/n CU153-02574)