3.
Use the NW16 center ring and clamp and the 7-mm nut driver to attach the flanged end of
a length of 1-inch ID vacuum hose to the vacuum port on the pump.
4.
Use a hose clamp to connect the opposite end of the length of 1-inch vacuum hose in step
3 to the 1-inch OD straight vacuum port on the instrument’s rear panel.
Note:
To avoid gas leaks, use the sharp knife to cut the PVC exhaust tubing squarely
(that is, perpendicular to its horizontal axis).
5.
Use a hose clamp to connect a length of 19-mm clear PVC exhaust tubing to the pump
exhaust port.
Notice:
The instrument requires two separate exhaust systems: one for
nitrogen, the other for the backing pump. Vent them to atmosphere through
separate exhaust lines. Oil mist can severely damage the instrument if the
nitrogen exhaust line connects with the backing pump exhaust line. Your
warranty does not cover damage caused by routing exhaust lines incorrectly.
6.
Route the open end of the exhaust tubing to a suitable exhaust vent.
Note:
To ensure correct operation of the backing pump, do not operate the pump with the
oil level at less than 30% of the MAX level.
7.
Check the oil level in the pump (see
Maintaining the rotary backing pump’s oil
8.
Make the electrical connections to the rotary backing pump (see
connections to the rotary backing pump
).
June 15, 2017, 715003956 Rev. F
Page 88