Sampling Coolant For Analysis; Changing Coolant Filter; Checking Separator Element; Changing Separator Element - Ingersoll-Rand RS45i Product Maintenance Information

EN

SAMPLING COOLANT FOR ANALYSIS

1. Bring the compressor up to operating temperature.
2. Stop the compressor.
3. Isolate the compressor from the external air system.
4. Press the emergency stop. Fixed speed compressors
can take more than two minutes to fully de-pressurize
once stopped.
5. Draw a sample from the separator tank port using a
pump kit. DO NOT draw a sample from the drain port
or oil filter.
Use a new hose on the pump for each sample. Failure to do
this can give false readings.
See Figure 2.
Figure 2: Coolant Sampling

CHANGING COOLANT FILTER

1. Loosen filter with the correct tool.
2. Remove the filter from the housing.
3. Place the old filter in a sealed bag and dispose of in a
safe way.
4. Clean the mating face of the housing taking care to
avoid any particles entering the machine.
5. Remove the new Ingersoll Rand replacement filter
from its protective package.
6. Apply a small amount of lubricant to the filter seal.
Screw the new filter down until the seal makes
contact with the housing, then hand tighten a further
half turn.
7. Start the compressor and check for leaks.
EN-6
RELEASED 11/Feb/2019 01:43:20 GMT

CHECKING SEPARATOR ELEMENT

With the compressor running on load, check the separator
differential pressure via the controller. It will be necessary to
change the element if the differential pressure equals zero or
exceeds 1 bar (15 psig).

CHANGING SEPARATOR ELEMENT

Take extreme caution to not force the scavenge tube
into the tank. This could potentially damage the
separator element.
1. Remove the fitting that holds the scavenge tube into
the tank and withdraw the tube assembly.
2. Disconnect the piping from the tank cover. Tag the
lines if required. Remove all the bolts securing the
over to the tank except the bolt opposite the pivot
bolt which should be left engaged by 2-3 threads
with at least 6.5 mm (0.25 in) clearance from the screw
head to the cover. Rotate the jacking bolt clockwise
until the cover lifts off the tank at least 2 mm (0.08 in)
all the way around the tank. Remove the remaining
bolt. The cover can now be rotated to allow access to
inside the tank.
3. Carefully lift the separator element up and out of the
tank. Discard the faulty element.
4. Clean the sealing surface on both the tank and its
cover. Check the tank to be absolutely certain that
no foreign objects such as rags or tools have been
allowed to fall into the tank. Lubricate a thin layer of
coolant on the separator seal top and bottom before
installing a replacement element down into the tank
after checking the new element seal for possible
damage. Center the element within the tank ensuring
that it is fully seated in the sealing groove. Rotate
the tank cover back into position taking care not to
damage the seal, and locate the cover using two bolts
but do not tighten down.
5. Loosen the jacking bolt to fully disengage the threads
and tighten the cover bolts in a cross-pattern to
prevent over-tightening one side of the cover. An
improperly tightened cover will likely result in a leak.
See Figure 3
6. Inspect the tank scavenge screen and orifice. Clean if
necessary following the instructions below.
7. Install the scavenge tube down into the tank until the
tube just touches the separator element and then
raise it 2 mm (0.10 in). Ensure tube is not raised less
than 2 mm (0.10 in) or more than 3 mm (0.125 in).
Tighten fittings.
NOTICE
8. Install the piping in the original position.
47612267 Rev B