375, 375H, 400HH, 425, 425H T4F User Manual 5: Maintenance
02250223-036 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 55
1. Remove the rubber cap from the grease
cap’s end.
2. Using a full charged grease gun, place the
gun onto the grease zerk located on the end
of the spindle. Make sure the nozzle is fully
engaged on the fitting.
3. Pump grease into the zerk. The old grease
will be displaced and flow out of the cap
around the grease gun nozzle.
4. When the new grease starts flowing out of the
cap, disengage the gun and wipe off any
excess off the cap; and replace the rubber
plug.
5.9.7 First and second stage discharge air
filter maintenance—aftercooled &
filtered models
Refer to Figure 5-7. Familiarity with the filtration process
and the unit’s monitoring system (consisting of a com-
pete set of gauges) will enable the operator to locate and
analyze malfunctions.
Th
e first and second stage filter element should be
changed wh
en the pressure drop reaches the red band
on the pressure differential gauge.
5.9.7.1 Daily operation
Check the automatic drain trap daily to ensure it is oper-
ating properly.
5.9.7.2 First and second stage element
replacement
1. Depressurize the filter and remove the filter
housing.
2. Remove the element.
3. Clean the inside of the filter housing, if necessary.
4. Install a new element and gaskets
• First stage P/N: 02250153-294
• Second stage P/N: 02250153-305
5. Reassemble the unit and check for air leaks.
6. Record the initial pressure drop when the
compressor is started.
1
2
4
5
6
7
3
Figure 5-6: Typical E-Z lube axle (American model shown)
1. Rubber plug 5. Metal end cap
2. Outer bearing 6. Inner bearing
3. Grease flow 7. Spring-loaded
double lip seal
4. Grease fitting
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