The instrument requires very little maintenance other than general cleaning and lubrication. Be sure to keep chamber, O-rings and working parts free of dirt and debris.
Chamber Lid O-ring
Lubricate Chamber Lid O-ring daily when in regular use. Wipe
all dirt and grit away from O-ring with a rag. Apply petroleum jelly
to O-ring.
Small Sealing System O-rings and Washers
The small O-rings for sealing samples are Buna 40 O-rings. Keep
O-rings and washers clean of debris. Use Buna 40 O-rings. Buna
70 (normal O-rings) are not soft enough for this application. If
additional O-rings or washers are needed you can purchase them directly
from PMS Instrument Company.
Large Sealing System
Occasionally remove the Compression Gland Screw by turning the screw
counter-clockwise until it comes out of the lid. Remove the washer
and Compression Gland Insert and take out the Compression Gland Gasket.
Clean all parts and then re-assemble. Ensure to lubricate the threads
of the Compression Gland Screw with a durable lubricant.
Adjustable Eye Lens
The Eye Lens needs no maintenance. However, ensure that the bolt
stays firm in the aluminum chamber body. Use the stainless steel
nut to keep it firm in the body. Focal point is adjusted by using
the brass nut. Loosen to raise the lens and tighten to press it closer
to the sample.
Gauge
No maintenance required. It is a 2.5 inch gauge with dual scales
of 20 Bar/ 300 PSI. It is accurate to 1%.