DH Instruments ADCS-601, Руководство по эксплуатации и обслуживанию

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6. GENERAL MAINTENANCE AND ADJUSTMENTS
Page 131 © 2005 DH Instruments, Inc.
Figure 57. PG7601 piston stroke and zones
6.8 PG7601, REPLACE PISTON ROTATION DRIVE BELTS
Periodic replacement of the drive system belts may be necessary to retain maximum performance of the
motorized piston rotation system. Due to specific material properties of the drive belts, it is important that
only genuine
DHI replacement parts be used.
A spare drive belt is included in the accessories delivered with the PG7601 Platform.
To replace the drive belts it is necessary to access the PG7601 platform. This requires removing the
AMH-38 automated mass handler and mass set. See Section 6.5 for instructions.
To remove the drive belts:
Using a 2.5 mm Allen tool, remove the three screws on the outer diameter of the circular black
pulley plate that is at the bottom of the platform mounting post. Do not remove the screws on the
inner diameter.
Remove the two drive belts and replace them with the new ones.
Realign the notched pulley with the pins on the drive motor.
Replace the pulley plate and three screws.
Engage the drive system to ensure proper operation.
6.9 PG7601, ADJUST INTERNAL VACUUM GAUGE
The PG7601 Platform has an internal Piranni type vacuum gauge. This gauge is used only as an
indicator to determine when residual vacuum under the PG7601 bell jar is low enough to open the
isolation valve of the PG7601’s reference vacuum CDG.
PG7601 internal Piranni gauge should be adjusted occasionally to agree with the CDG to assure proper
operation of the CDG isolation valve opening and closing routine.
ADCS Tools supports automated
adjustment of the Piranni gauge.