Part 755-215 is a lock washer used in various airless sprayer models to secure fasteners against vibration and loosening. This washer provides tension between the bolt/nut and mounting surface, helping maintain proper clamping force during operation. Replacing missing, deformed, or worn lock washers ensures that critical components remain securely fastened and prevents hardware from backing out.
| Part Number | 755-215 |
|---|---|
| Part Description | Lock Washer |
| Brand | Universal (Fits Multiple Brands) |
| Fits | 690 GXC, Advantage GPX 85, PowrLiner, ProMack II, RentSpray 700, SprayTech GPX 85 |
| Condition | New |
The 755-215 Lock Washer is a mechanical fastener component designed to prevent nuts and bolts from loosening due to vibration, shock, or thermal cycling. It is used in various airless sprayer models to secure critical components such as motor mounts, pump assemblies, and frame connections.
Lock washers work by creating tension and friction between the fastener head and the mounting surface. When a lock washer is missing, flattened, or corroded, fasteners can back out, leading to component misalignment, increased wear, or potential equipment damage. Replacing worn lock washers with this genuine‑style part restores secure fastening and reliable operation.
| Prevents loosening | Creates tension to resist fastener back-out from vibration |
|---|---|
| Maintains clamping force | Helps keep bolts and nuts at proper torque |
| Secures components | Ensures motor, pump, and frame connections stay tight |
| Missing washer | Washer absent from assembly (often lost during service) |
|---|---|
| Flattened / deformed | Washer has taken a permanent set and no longer provides spring tension |
| Corroded / damaged | Rust, cracks, or physical damage that compromises function |
| During reassembly | Always use new lock washers when reinstalling critical fasteners |
This lock washer (part 755-215) is compatible with the following airless sprayer models. Always verify fitment by consulting your equipment's parts diagram.
| Sprayer Model | Component |
|---|---|
| 690 GXC Airless Sprayer | Lock Washer |
| Advantage GPX 85 | Lock Washer |
| PowrLiner 2850 GB_D_F | Lock Washer |
| PowrLiner 4955, 6955, 8955 | Lock Washer |
| PowrLiner 2800, 1800M, 2800M | Lock Washer |
| ProMack II (Model No. 759-2010) | Lock Washer |
| RentSpray 700 | Lock Washer |
| SprayTech GPX 85 | Lock Washer |
When replacing lock washers, it's good practice to inspect and consider replacing these related fasteners.
Bolts may be stretched or corroded and should be replaced if damaged.
Nuts with damaged threads can prevent proper torquing and clamping.
Flat washers protect surfaces and distribute load; inspect for wear.
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