SECTION 6
®SULLAIR®
34
3700 Operator’s Manual and Parts List
 Figure 6-1
1. Filter Head
2. Element*
3. Body*
* Repair Kit P/N 02250155-709
F i g u r e   6 - 1        
Fluid Filter (P/N 02250155-708)
6.5 FLUID MAINTENANCE 
Drain the sump and change the compressor fluid using 
instructions shown in Sections 3.2, 3.3 and 3.4.
6.6 FILTER MAINTENANCE
Replace your fluid filter element under any of the 
following conditions, whichever occurs first:
1. As indicated by the microprocessor.
2. Every fluid change.
Refer to Figure 6-1.
FLUID FILTER ELEMENT REPLACEMENT
Refer to Figure 6-1.
1. Using a wrench, remove the filter canister. 
2. Remove and dispose of filter element. Observe all 
laws and regulations for filter disposal.
3. Clean gasket seating surface.
4. Apply a light film of fluid to the element seal.
5. Install the element into the filter canister.
6. Screw the canister to the filter head. Tighten to 
10-12 ft•lb.
7. Restart compressor and check for leaks.
 Figure 6-2
1. Housing
2. Clamp
3. Element
4. Cover
* Replacement Element P/N 02250127-683
F i g u r e   6 - 2        
Air Filter (P/N 02250127-684)
6.7 AIR FILTER MAINTENANCE 
Refer to Figure 6-2. Air filter maintenance should be 
performed when the maintenance gauge shows red with 
the compressor running full load, or once a year, 
whichever comes first. If the filter needs to be replaced, 
order a replacement element. Below you will find 
procedures on how to replace the air filter element.
3!?
3!?