Overview
The FRG air cleaner series is a family of two-stage RadialSeal™ engine air cleaners that provide improved reliability, better durability and reduced weight compared to axial seal style air cleaner designs. There are two cover styles and more than 20 air cleaners that work in the airflow range of 2.3 to 45.3 m³/min / 82 to 1600 cfm.
Benefits
- Servicing is quick and easy
- Sure sealing system
- Durable housing withstands rugged conditions
- Built-in pre-cleaner eliminates need for external pre-cleaner in most applications
Features
- Two-stage filter system: the first stage removes up to 85% of incoming dust
- The first stage in the Style A uses the angled vanes on the primary filter
- The first stage in the Style B has a tangential air inlet
- Ready to accept filter service indicator
- Vacuator™ Valve automatically releases the pre-cleaned dust
- Durable, long-lasting finish
- Style A housing is metal and coated with a black, corrosion- and chemical-resistant polymer paint (service cover is accessed with clamp and bolt)
- Style B is comprised of two materials: injection molded, high strength polymer service cover and a metal body (the service cover is accessed by latches)
- Mounting the unit directly to the engine is not recommended; excessive engine vibration can cause premature air cleaner structural failure
- Filters have RadialSeal™ Sealing Technology that creates a reliable, critical seal and makes servicing easy
Applications
- Horizontal installation
- Medium and heavy dust environments
- Style A — From 2.3 to 22.5 m³/min / 82 to 795 cfm airflow throughput per air cleaner
- Body sizes ranging from 127 to 406 mm / 5 to 16 in. in diameter
- Style B — From 7.6 to 39.4 m³/min / 270 to 1390 cfm airflow throughput per air cleaner
- Body sizes ranging from 254 to 457 mm / 10 to 18 in. in diameter
- Style A — From 2.3 to 22.5 m³/min / 82 to 795 cfm airflow throughput per air cleaner
- Construction equipment
- Agricultural machinery
- Mining equipment
- Off-highway vehicles
Resources
Service
This servicing information is provided as a best practices guide. It is not intended to replace or supersede the service instructions supplied by your engine or vehicle manufacturer.
1. Check the restriction
Replace the filter only when the restriction level has reached the maximum recommended by the engine or equipment manufacturer or on a regular service schedule.
Make sure the valve is flexible and not inverted, damaged or plugged. Replace it if damaged or if it looks like the image above. A damaged or missing vac valve will disrupt the designed flow of air through the air cleaner.
2. Remove the primary filter and check the Vacuator™ Valve
Shut off the engine. Unfasten or unlatch the service cover.
Because of its RadialSeal™, the filter fits tightly over the outlet tube and there will be some initial resistance, similar to breaking the seal on a jar. Gently move the end of the filter back and forth to break the seal then rotate while pulling straight out. Avoid knocking the filter against the housing.
If your air cleaner is equipped with a Vacuator™ Valve, visually check and physically squeeze it.
3. Visually check the safety filter and clean both surfaces of the outlet tube
If your air cleaner has a safety filter, visually check the safety filter in place for signs of damage. Do not remove the safety filter unless it is damaged or due for replacement. Also verify that the safety filter is properly seated in the housing.
The safety filter should be replaced every three primary filter changes. Use a clean damp cloth to wipe both the filter sealing surface and the inside of the outlet tube. Ensure that the outlet tube sealing area is undamaged.
Contaminant on the sealing surface could hinder an effective seal and cause leakage. If the safety filter is to be replaced, avoid leaving the outlet tube exposed to the air. If there is to be a delay in installing the new safety filter, cover the air cleaner outlet tube to avoid admitting any dust.
4. Inspect the old filter
Inspect the old filter for any signs of leaks. A streak of dust on the clean side of the filter is a telltale sign. Eliminate any source of air leaks before installing the new primary filter.
5. Inspect the new filter
Inspect the new filter for any damage that may have occurred through mishandling. Never install a damaged filter. Visually check the inside of the open end, which is the sealing area.
Do not wipe the filter RadialSeal™ area as the new Donaldson RadialSeal filter may have a dry lubricant on the seal to aid installation.
6. Insert the new filter
First, if you’re servicing the safety filter at this change-out, seat it properly into position before installing the primary filter. Insert new filters carefully. Seat the primary filter by hand, making certain it is inserted completely into the air cleaner housing. To complete a tight seal, apply pressure by hand at the outer rim of the filter, not the flexible center.
No cover pressure is required to hold the seal in place and one should never use the service cover to apply pressure. This could damage the housing and fasteners and void the warranty. If the service cover presses against the filter before the cover is fully in place, remove the cover. With cover off, push the filter farther into the air cleaner by hand and then the cover will go on with no extra force. Once the filter is in place, secure the service cover.
7. Check inlet hoods and pre-cleaners
Check any intake hoods and precleaner devices during maintenance routines.
A missing inlet hood will significantly shorten filter life. If your unit had a hood or pre-cleaner originally, make sure you replace it. Check openings and tubes on pre-cleaners to make sure they are not plugged. Replace any units that are damaged. Damaged or dented units will not operate properly.
8. Check connectors for a tight fit
Make sure service indicators are reset and in proper working order. Check that all mounting bands, clamps, bolts, and connections in the entire air cleaner system are tight. Check for holes in piping, and repair or replace as needed. Any leaks in the intake piping will admit dust directly to the engine.
