Varian DS102 1Ph, Инструкция пользователя

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TECHNICAL INFORMATION
SYMPTOM PROBABLE CAUSE SUGGESTED REMEDY CARD
REF.
6 The pump is very noisy even at
steady operating conditions. A) Exhaust valves damaged. Inspect the valves. 106
B) High suction pressure, or gas
ballast device is open. Check the system and the gas ballast
valve (see items 4-A and 4-B).
C) Elastic star of joint is dam-
aged. Check and replace if necessary.
D) A grain of the joint has be-
come loose. Lock the grain after application of Loctite
222 (for slack threads).
7 When the pump is stopped, the
inlet pressure rises rapidly. A) The anti-suckback device is
defective. Disassemble and check the anti-suckback
device. 108
B) The cause of the problem is
not with the pump. See “Note”.
8 The pump does not produce a
sufficient vacuum. A) Not enough oil, or oil con-
taminated. Check level and appearance of the oil.
Open the Gas Ballast for half an hour at
least; change the oil whenever necessary. 01
102
B) Oil ducts clogged inside. Proceed as at 3-B.
C) Direction of rotation inverted. Proceed as at 3-C.
D) OR gaskets communicating
with the inlet line defective. Replace the gaskets. 109
E) Exhaust valves damaged or
out of place. Proceed as at 6-A.
F) Insufficient oil pressure in the
lubricating circuit, preventing the
anti-suckback device from
opening. Inspect the gears of the oil pump and
check that it is working. 107
G) Internal moving parts worn. Disassemble the pump, and replace any
worn parts. 110
H) Pump working with gas bal-
last device open. Close the gas ballast device.
I) Anti-suckback valve fails to
open. Disassemble the suction flange and check
the device. 104
108
J) Parts of the functional block
not in perfect contact because
of deposits of dirt or failure to
put a plug on the service holes. Disassemble and check condition of the
part surfaces and that plugs have been
used. 110
K) The cause of the problem is
not with the pump. See “Note”.
58 87-900-943-01(E)