Part number 805-254A is a Face Plate / Oiler Assembly for air-powered pumps. This integrated component serves as both the mounting plate for the air motor and the housing for the automatic oiler system. It meters oil into the incoming air supply to lubricate the pump's internal moving parts, which is essential for reducing wear and maintaining performance.
| Part Number | 805-254A |
|---|---|
| Part Description | Face Plate / Oiler Assembly |
| Fits | Impact 840 service; Impact 740-840; Impact 740; Impact 840 I and IA |
| Condition | New |
Part number 805-254A is a combined Face Plate and Oiler Assembly. This unit mounts to the air motor section of the pump and serves two primary functions. First, it acts as a structural face plate. Second, it contains an integrated oil reservoir and metering system that injects a controlled amount of oil into the air stream, lubricating the piston, cylinder, and other internal components of the air motor.
A faulty or clogged oiler assembly can lead to inadequate lubrication, resulting in increased wear, scoring, reduced pump speed, overheating, and eventual pump failure. Replacing this assembly restores proper lubrication and protects the pump's air motor.
| Automatic Lubrication | Meters oil into the air supply to lubricate the air motor internals continuously |
|---|---|
| Structural Mounting | Provides a mounting interface between the air motor and pump assembly |
| Wear Prevention | Delivers a protective oil film to metal surfaces to minimize friction and heat |
| Oiler Failure | Oiler is clogged, will not feed oil, or leaks externally |
|---|---|
| Physical Damage | Cracked body, broken sight glass, or stripped threads |
| Evidence of Dry Running | Pump shows scoring, overheating, or power loss due to lack of lubrication |
| Preventive Rebuild | During a comprehensive pump overhaul or rebuild |
Part number 805-254A is designed for specific Impact series pump models. Always confirm fitment using the correct parts diagram for your exact pump model and serial number.
| Compatible Models | Component |
|---|---|
| Impact 840 service | Face Plate / Oiler Assembly |
| Impact 740-840 | |
| Impact 740 | |
| Impact 840 I and IA |
The face plate oiler is part of the pump's lubrication and air intake system. During service, these components are often checked or replaced at the same time.
Includes the piston, rings, and seals that are directly lubricated by the oiler assembly.
Often attached to the face plate. Filters incoming air and reduces noise.
High-quality non-detergent air tool oil (ISO VG 32) is required for proper lubrication.
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