MANUAL CARTRIDGE UNLOAD Super DLT1 Presented By Quantum Technical Services
Overview • Understand why & how tapes get stuck • Considerations • Tape removal • Detached leader • Rewinding: when and how • How It All Fits Together
Tools • 5lbs. Torque driver • Driver bits: #8 Torx, #2 Phillips • Slotted Screwdriver • ESD ground strap • 9Volt battery • Finger Cots or Latex Gloves • Tweezers • Non-contaminating probe • Alcohol wipes
Drive Handling • Reduce Damage to the drive • Take proper ElectroStatic Discharge (ESD) precautions. • Do not handle the drive without ESD protection/grounding. • Ensure that proper tools are used • Reduce Contamination • Latex gloves or finger cots to prevent contamination. • Use alcohol wipes to clean leader
Causes Of A Stuck Tape • Faulty unload button • Try SCSI unload/eject command • Detached leader • Improper or no SCSI bus termination • Another device on the bus was powered off • Misalignment, Post-it or other label attached • Wrong type of cartridge inserted (rare) • DLTtape III/IIIXT or Cleaning Tape III
Troubleshoot First • Verify that the drive or bus is properly terminated • Termination matches bus? • Drive has good power? • Tried other sources (if possible)? • If other devices on the bus, are they powered on? • Were any devices powered off on an active bus? • SCSI device/bus reset & eject command attempted? • Device has been powered off and on?
Table Top Cover Removal • Ensure that power is off and/or disconnected • Take proper ESD precautions • Tool(s) • Phillips or Torx (it may vary) • Cover screws are located on the bottom • Generally Phillips head screws • Rotate counterclockwise direction • Cover slides towards the rear of drive
Bezel Removal • Tools • You will need a flat head screwdriver • A little patience • Care must be used in unlatching the clips • Don’t apply too much pressure • The clips are delicate • Start from the bottom sides • Do the bottom clips first • Work upwards • Slowly pivot the bezel outward from the bottom • It should not be necessary to depress the top clips
Chassis Cover Removal • There are three T8 Torx screws • One screw on each side of the chassis (excluding the front) • 5lbs. of torque is used to fasten these screws • After removing the screws, grab the front of the cover and pivot cover back towards the rear • You cannot pull the chassis cover straight up. • The rear screw retainer is not flush with the rear
Inspect Drive & Tape Leader • Visually inspect and determine the drive’s condition • Is there tape on the take-up reel? • Is tape fully rewound? • Is take-up reel leader still attached? • What is the position of the buckling arm? • Purpose: determine first course of action • Proceed to eject tape • Destroy tape, rewind, attach leader, etc.
If Tape Is On Take-up Reel • Destroying the tape is recommended • It limits the potential for damage to the heads • If there is resistance, explain the risk of head damage • Reattaching a leader is less invasive to the head • Point out the head shield for protection from the leader • A manual tape rewind is to be used only in an emergency situation. • There must be a critical business need • For instance, the data on the tape is unique
Manual Tape Ejection • Tool • Fresh 9V Battery • Considerations • Ensure power is off and power connector is unplugged • Never apply battery to the eject motor terminals with power on • Disconnect power connector from the tape drive • Battery life is extended when disconnected • Tape is clear of the take-up reel or is fully rewound • Take-up reel leader is clear of tape or attached to buckling arm • You may need to reverse the polarity first to reset the mechanism
Manual Tape Eject • The tape cartridge is ejected by placing the contacts of a 9V battery on the contacts of the eject motor • You may need to retract the buckling arm to reset the eject process
Manual Tape Eject Postive (+) contact to rear post engages buckling arm and tape is ejected Negative (-) contact to rear post retracts the buckling arm
TAPE REWIND MANUAL AND POWER REWIND
Rewinding Considerations • Caution:The tape leader splice may hang on the tape head • Stop and release the tension • The splice should now pass over the head • The buckle between the tape and take-up reel leaders will hang on the head • Stop and carefully close the head shield • Continue rewinding the buckle past the head
Manual Rewind T8 Driver Base Plate Supply Motor Access Hole
Manual Rewind • Carefully position the drive onto one of its sides • Locate the supply motor access hole on the drive base plate • Insert the T8 Torx driver into the access hole • Couple with the supply motor screw • Rotate counterclockwise (right to left) • Stop when there is any resistance • Visually inspect the tape path • The leader splice or buckle could be hung on the head assembly or a roller • It the motor is frozen, return the drive to the supplier.
Power Rewind • Carefully position the drive onto one of its sides • The supply motor access hole is located on the base plate • Insert the T8 Torx driver into the access hole and couple with the supply motor screw • Ensure power tool is set to reverse (counterclockwise) and keep RPM low
Power Rewind • Caution:Using an electric power driver will damage the tape and the drive leaders if you do not stop before reaching the end of the tape • Visually monitor tape rewind progress • Stop before tape is fully rewound • Switch to T8 hand tool to complete the rewind
Threading The Leader • Start at roller #4 • Keep leader low to the rollers • Follow the roller path • Caution: the head shield may be retracted