5. MAINTENANCE AND ADJUSTMENTS
5
5
.
.
M
M
A
A
I
I
N
N
T
T
E
E
N
N
A
A
N
N
C
C
E
E
A
A
N
N
D
D
A
A
D
D
J
J
U
U
S
S
T
T
M
M
E
E
N
N
T
T
S
S
5.1
MAINTENANCE
The AMH mass handler is designed for long term, maintenance free operation.
Certain day-to-day procedures are required for proper operation.
•
Lubricate the threads of the mass lifting shaft:
Occasionally, and especially after cleaning,
lubricate the threads on the bottom of the mass lifting shaft. Wipe on a very thin film of Krytox®
grease (supplied with the PG7000 Platform accessories). Wipe off all excess grease.
•
Lubricate the inside of the mass bell:
Occasionally perform the bell positioning test described
in Section 2.5.1. If the test fails, or if any sign of the bell not disengaging and engaging from the
piston when the mass load is lifted is observed in operation, apply and wipe off a very thin film of
Krytox® grease (supplied with the PG7000 Platform accessories) to the inside surface of the top
of the mass loading bell where it contacts the outside perimeter of the piston cap.
If AMH returns no errors and no operational issues are observed, no regular maintenance is required. To
avoid any planned downtime, an AMH overhaul is recommended every 10000 hours of operation or three
years. Contact a DHI Authorized Service Provider to have this service performed.
Page 33
© 2007 DH Instruments, a Fluke Company
