Sun StorageTek SL8500 Modular Library System
 

PLA-Support>Sun Systems>Sun_Other>Sun Collections>SN-OTH: TAPE-CAP VCAP
 

In this Document

Goal

Solution

References

Oracle Confidential PARTNER - Available to partners (SUN).
Reason: Confidential for Service Personnel

Applies to:

Goal

SL8500 - How to Remove and Replace a Handbot Brush Assembly.

Solution

DISPATCH INSTRUCTIONS
WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?: Oracle/Storagetek SL8500 Library Knowledge
TIME ESTIMATE: 120 minutes
TASK COMPLEXITY: 2

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:
PROBLEM OVERVIEW: Robot has worn brushes.

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY?: Vary the associated Handbot offline in SLC.  If robot is behind the service safety door on the right hand side, customer should vary CAP offline via the ACSLS or HSC.  If the library does not have a SSD, Customer must halt Handbot operation by placing the library offline with either ACSLS or HSC.

WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE?:

Refer to the SL8500 Service Manual for the complete instructions, including pictures, cautions and notes for the removal and replacement of the robot.

Note: (Mar-2018) SL8500 - How to Inspect the Handbot Lower Extension Plate and Prevent Damaging Replacement HandBot (Doc ID 1496902.1)

HandBot Brush Assembly Removal
1. Follow the procedures for removing the HandBot: “HandBot Assembly (Rotational CAP Library Only): Removal”.

Caution –
Ensure that the lower extension plate is not damaged in the following step. Also be sure to carefully move the hand to the bottom of the assembly.

2. Place the HandBot on a flat, sturdy surface with the top portion on top.
3. Locate the two E-rings (1) shown in FIGURE 1-107 that hold the two pre-load assembly screws captive.

4. Move the pre-load assembly screws up as far as they will go.
Caution –
Be sure to support the preload assembly in the following step. Once the E-rings are removed, the assembly will no longer be attached to the HandBot.

5. Using a tweezers or fine-tip needle nose pliers (1) shown in FIGURE 1-108, remove the two E-rings.

Note –
The removed E-rings are not to be re-used. Use the E-rings supplied with the assembly when replacing the brush/sweeper assembly.

6. Loosen and remove the preload screws.
7. Place the preload assembly aside.
8. Carefully cut the tie wrap (1) shown in FIGURE 1-109.

9. Disconnect the brush connector (1) shown in FIGURE 1-110 from J123 on the HBB card.

10. Carefully and slowly turn the HandBot over.  The hand will descend.
11. Loosen (do not remove) the top track mount plate screw (1) shown in FIGURE 1-111 approximately four turns.

Note –
In the following step, the screw can be tight. Use care when loosening not to strip the screw head.

12. While holding on to the pulley, remove the pulley mount screw (1) shown in FIGURE 1-112.

13. Carefully pull up on the belt (1) shown in FIGURE 1-113 while turning the pulley (2) to remove the belt from the pulley.

14. Push up on the mount plate (1) shown in FIGURE 1-114 to provide clearance while removing the pulley (2).
15. Remove the pulley.

16. Remove the two screws (1) shown in FIGURE 1-115.  These screws secure the brush assembly.

17. Pull back to release the hook (1) shown in FIGURE 1-116 and pull the assembly away from the HandBot assembly.

18. Scrap the brush assembly.

HandBot Brush/Sweeper Assembly Installation
To install the new HandBot Brush/Sweeper Assembly:
1. Obtain the new assembly (1) shown in FIGURE 1-117.

2. Be sure that the cables (2) shown in FIGURE 1-118 are routed inside the brush housing and pushed down into the brush housing slot (1).

3. Align the pins on the plate (1) shown in FIGURE 1-119 on with the alignment holes (2).

4. Mating the pins to the alignment holes, insert the brush/sweeper on to the assembly.
5. Be sure the cables (1) shown in FIGURE 1-120 are down and routed as shown. The hook (2) should be in place as shown.

6. Be sure that the curved section (2) shown in FIGURE 1-121 is against the pulley sprocket (1).

7. Replace the two screws you removed in Step 16,FIGURE 1-115 on page 121.
8. Holding the pull (1) shown in FIGURE 1-122 , ensure that the spacer (2) is centered correctly (bottom illustration).

9. Re-install the pulley on to the sprocket.
10. Guide the belt on to the pulley.
11. Check that the belt (1) shown in FIGURE 1-123 is correctly on the motor by moving the belt back and forth. The motion should be smooth. Adjust as needed.

12. Re-install the pulley screw (1) shown in FIGURE 1-124.

13. Tighten the motor plate screw (2) shown in FIGURE 1-123.
14. Reinstall, but loosely tighten only , both preload assembly screws (1) shown in FIGURE 1-125.

15. Carefully, turn over the entire assembly.
16. Using a tweezers or fine-tip needle nose pliers (1) shown in FIGURE 1-126 , insert two E-rings supplied from the kit.

17. Reconnect the brush connector (1) shown in FIGURE 1-110 on the HBB card.
18. Obtain the tie wrap enclosed with the kit.
19. Align the cables (1) as shown in FIGURE 1-127and apply the tie wrap (2).

20. Loosen the two preload screws to set them into the installation position.
21. Follow the directions for replacing the HandBot in “HandBot Assembly (Rotational CAP Library Only): Replacement” in the Service Manual.

Note: After Brush replacement please update the Serial number notes in Splat to reflect which bot had the brushes replaced.
Contact Library Global Tape Lead's for resetting the BOT mileage via a webex as currently only root and eng users have this ability.

OBTAIN CUSTOMER ACCEPTANCE
WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO RETURN THE SYSTEM TO AN OPERATIONAL STATE?:  Confirm in SLC the robotic hand initializes successfully.

PARTS NOTE: PN 7043761 is officially called “BRUSH/SWEEPER ASSEMBLY

REFERENCE INFORMATION: SL8500 Service Manual, http://amomv0115.us.oracle.com/archive/cd_ns/E23728_17/index.html

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