HySecurity MX3475, RESERVOIR, OFFSET ASSY
The HySecurity MX3475 is a replacement offset reservoir assembly for select HySecurity and Nice HySecurity HydraSwing hydraulic gate operator systems. It is commonly listed as RESERVOIR, OFFSET ASSY and is also described in current listings as a 4-quart reservoir with hose fitting for HydraSwing.
The hydraulic reservoir stores the fluid used by the operators pump system. In a compatible HydraSwing installation, the reservoir works with the electric motor, hydraulic pump, breather cap, hose fittings, valves, pressure gauge connection, pump pack components, and hydraulic fluid to support controlled movement of the swing gate.
Current product references show MX3475 in HydraSwing pump pack and single pump pack parts listings. Because reservoir fitment depends on pump pack layout, reservoir position, hose fitting arrangement, capacity, mounting style, and hydraulic circuit design, MX3475 should be selected by HySecurity part number and parts diagram before ordering.
What This Reservoir Assembly Does
The MX3475 offset reservoir assembly holds hydraulic fluid for compatible HydraSwing pump systems. The reservoir provides the fluid supply needed by the pump and allows the hydraulic system to circulate fluid through the operators valves, hoses, brake manifold, and actuator components.
If the reservoir is cracked, leaking, contaminated, incorrectly vented, missing the proper hose fitting, or installed with the wrong cap or hose arrangement, the operator may lose fluid, draw air into the system, run noisy, move weakly, overheat, foam the hydraulic fluid, or show inconsistent movement. Similar symptoms can also be caused by low hydraulic fluid, clogged or damaged hoses, bad fittings, pump wear, relief valve issues, brake manifold problems, cylinder leakage, or gate binding.
Compatible With
The HySecurity MX3475 is intended for select HySecurity / Nice HySecurity HydraSwing hydraulic gate operator applications where this offset reservoir assembly is specified. Compatibility depends on the operator model, pump pack style, reservoir capacity, hose fitting layout, mounting position, breather cap, and current HySecurity parts documentation.
- Select HySecurity HydraSwing pump pack applications where the parts diagram lists MX3475
- Select HydraSwing single pump pack applications where MX3475 is listed as the 4-quart reservoir with hose fitting
- Select HydraSwing 40 pump pack applications where the parts diagram confirms MX3475
- Select HydraSwing 40F pump pack applications where the parts diagram confirms MX3475
- Select HydraSwing 40 Twin and 40F Twin pump pack applications where the parts diagram confirms MX3475
- Select HydraSwing 80F pump pack applications where the parts diagram confirms MX3475
- Select HydraSwing 150 pump pack applications where the parts diagram confirms MX3475
- HydraSwing hydraulic reservoir repairs where the original reservoir assembly is marked, listed, or cross-referenced as MX3475
Do not assume MX3475 fits every HySecurity HydraSwing, HydraLift, SwingRiser, StrongArm, SlideDriver, SlideSmart, SwingSmart, HydraWedge, Smart DC, Smart Touch, or SmartCNX operator. Reservoirs should be matched by pump pack layout and parts diagram.
MX3475 vs. Related Reservoir and Pump Pack Parts
MX3475 is a reservoir assembly, not a complete pump pack. Keep it separate from other hydraulic reservoir, cap, pump, and motor parts.
- MX3475: Offset reservoir assembly / 4-quart reservoir with hose fitting for select HydraSwing applications.
- MX000686: Standard 3/8-inch breather cap used on select HySecurity hydraulic reservoirs, not the same part.
- MX3520: Pump pack for select HydraSwing 40 applications, not the same as the reservoir alone.
- MX3521: Pump pack for select HydraSwing 40F applications, not the same as the reservoir alone.
- MX3522: Pump pack for select HydraSwing 80F applications, not the same as the reservoir alone.
- MX3523: Pump pack for select HydraSwing 150 applications, not the same as the reservoir alone.
- MX3524 / MX3525: Pump packs for select HydraSwing Twin applications, not the same as the reservoir alone.
- MX3548: HydraSwing 80F / 150 cylinder assembly with fittings, not the same part.
If the motor, pump, coupler, valves, or pressure components are damaged, replacing only the reservoir may not correct the full hydraulic problem.
Hydraulic Fluid and Breather Cap Notes
A hydraulic reservoir must be clean, properly vented, and filled with the correct hydraulic fluid specified for the operator. A blocked, missing, or incorrect breather cap can cause pressure imbalance, fluid leakage, foaming, contamination, or poor pump performance.
If the old reservoir is being replaced because of contamination, inspect the fluid, breather cap, hoses, fittings, pump pack, valve cartridges, and actuator components. Installing a clean reservoir into a contaminated hydraulic system may not solve the root issue unless the rest of the system is cleaned and serviced correctly.
Related HydraSwing Pump Pack Parts
Reservoir replacement should be diagnosed with the full hydraulic pump system in mind. Check nearby components before deciding whether MX3475 is the only part needed.
- MX000686: Standard 3/8-inch breather cap for select HySecurity reservoirs
- MX001107: 3000 PSI pressure gauge kit used in select hydraulic service applications
- MX001257: Two-position manual directional valve used in select HydraSwing / SwingRiser systems where specified
- MX001638: 2 HP, 3-phase electric motor used in select HydraSupply / HydraSwing pump systems where specified
- MX002054: Motor-to-pump coupler used in select hydraulic operators where specified
- MX000202: 1/4-inch male quick disconnect fitting used in select hydraulic systems where specified
- HydraSwing pump pack assemblies where the pump, motor, or valve system is the failed component
- Hydraulic fluid specified by the current HySecurity operator manual
Not Intended For
- Universal hydraulic reservoir replacement
- Replacing a complete HydraSwing pump pack assembly
- Replacing the hydraulic pump, motor, coupler, pressure gauge, valve cartridge, breather cap, hose kit, or fittings unless those parts are separately ordered
- Correcting hydraulic problems caused by a worn pump, bad motor, relief valve issue, low fluid, contaminated fluid, hose leak, brake manifold problem, cylinder leakage, or gate binding without diagnosis
- Installing into a pump pack where the reservoir shape, hose fitting location, capacity, mounting style, or parts diagram does not match MX3475
- Operating the hydraulic system with the wrong fluid type, contaminated fluid, missing breather cap, or blocked venting
Important Compatibility Warning
MX3475 should be selected by HySecurity part number, reservoir capacity, hose fitting layout, pump pack style, mounting position, and parts diagram. A reservoir that appears similar may not have the same fitting location, volume, shape, mounting arrangement, or hydraulic circuit connection.
If the original reservoir failed due to impact, heat, contamination, overfilling, blocked venting, incorrect fluid, or repeated hydraulic overheating, correct the cause before installing the replacement. Otherwise, the new reservoir may leak, foam, or become contaminated again.
Features & Specifications
| Feature / Specification | Details |
| Manufacturer | HySecurity / Nice HySecurity |
| Part Number | MX3475 |
| Product Type | Hydraulic reservoir assembly |
| Common Description | RESERVOIR, OFFSET ASSY |
| Alternate Description | 4-quart reservoir with hose fitting for HydraSwing |
| Capacity Reference | 4 quart, as commonly listed |
| Fitting Reference | Reservoir with hose fitting, as commonly listed |
| Common Operator Reference | Select HydraSwing hydraulic pump pack applications where the parts diagram confirms MX3475 |
| System Area | Hydraulic pump pack / reservoir assembly |
| Related Breather Cap | MX000686 is a related 3/8-inch breather cap used in select reservoir applications, not the same part |
| Related Pump Pack References | MX3520, MX3521, MX3522, MX3523, MX3524, and MX3525 are related HydraSwing pump pack assemblies, not the same as this reservoir assembly |
| Selection Method | Match by HySecurity part number, operator model, reservoir capacity, fitting location, pump pack layout, mounting style, and parts diagram |
| Included Items | Offset reservoir assembly with hose fitting as commonly listed; verify current package contents before publishing cap, fittings, hose, mounting hardware, labels, or instructions as included |
| Not Included Unless Listed | Complete pump pack, motor, pump, coupler, breather cap, hydraulic fluid, valve cartridges, pressure gauge, hoses, quick disconnects, mounting hardware, and operator hardware unless separately listed |
Also Known As / Related Part Numbers
- MX3475
- HySecurity MX3475
- Nice HySecurity MX3475
- HySecurity RESERVOIR, OFFSET ASSY
- HySecurity offset reservoir assembly
- HySecurity 4-quart reservoir with hose fitting
- HySecurity 4 Qt. Reservoir With Hose Fitting For HydraSwing
- HySecurity HydraSwing reservoir assembly
- HySecurity HydraSwing offset reservoir
- HySecurity HydraSwing pump pack reservoir
- HySecurity hydraulic reservoir with hose fitting
- HYS-MX3475, related distributor SKU format
- MX000686, related breather cap, not the same part
- MX001107, related 3000 PSI pressure gauge kit, not the same part
- MX001257, related two-position manual directional valve, not the same part
- MX001638, related 2 HP motor, not the same part
- MX002054, related motor-to-pump coupler, not the same part
- MX000202, related 1/4-inch male quick disconnect, not the same part
- MX3520, related HydraSwing 40 pump pack, not the same part
- MX3521, related HydraSwing 40F pump pack, not the same part
- MX3522, related HydraSwing 80F pump pack, not the same part
- MX3523, related HydraSwing 150 pump pack, not the same part
- MX3524, related HydraSwing 40 Twin pump pack, not the same part
- MX3525, related HydraSwing 40F Twin pump pack, not the same part
Related Parts and Accessories
- mx000686-3-8-inch-hydraulic-reservoir-breather-cap.html">HySecurity MX000686 3/8-inch breather cap where the reservoir vent cap is missing or damaged
- mx001107-3000-psi-pressure-gauge-fitting-kit.html">HySecurity MX001107 3000 PSI pressure gauge kit where pump pressure needs to be checked
- mx001257-2-position-manual-directional-valve-cartridge.html">HySecurity MX001257 two-position manual directional valve where the manual direction valve is being serviced
- mx001638-p-2hp-3-phase-motor-assembly.html">HySecurity MX001638 2 HP motor where the pump motor is the failed component
- mx002054-p-6t-motor-pump-coupling-kit.html">HySecurity MX002054 motor-to-pump coupler where the motor runs but the pump does not turn correctly
- mx000202-1-4-inch-male-quick-disconnect-plug.html">HySecurity MX000202 1/4-inch male quick disconnect fitting where that fitting is specified
- HySecurity MX3520, MX3521, MX3522, MX3523, MX3524, or MX3525 pump pack assemblies where the complete pump pack is required
- Hydraulic fluid specified by the current HySecurity operator manual
Technician Note
Before replacing MX3475, confirm whether the issue is actually the reservoir assembly. Low fluid, foaming fluid, noisy pump operation, weak movement, or overheating can also be caused by leaks, blocked venting, contaminated fluid, bad hoses, worn pump components, valve problems, or a gate that is binding.
If the reservoir is cracked or contaminated, inspect the breather cap, hose fitting, pump inlet area, fluid condition, and surrounding pump pack components. A new reservoir can become contaminated quickly if dirty hydraulic fluid or debris remains in the system.
Before Ordering, Confirm
- Confirm the needed HySecurity part number is MX3475.
- Confirm the original part is listed as RESERVOIR, OFFSET ASSY or 4-quart reservoir with hose fitting for HydraSwing.
- Confirm the operator model and serial number.
- Confirm the parts diagram lists MX3475 for the reservoir location.
- Confirm the reservoir capacity, offset shape, fitting location, mounting style, and pump pack layout match the original reservoir.
- Confirm the repair does not require a complete pump pack assembly instead.
- Confirm the breather cap, hose fitting, pump inlet, hydraulic fluid, and connected hoses are not the actual cause of the issue.
- Confirm whether breather cap, fittings, hoses, mounting hardware, labels, instructions, or hydraulic fluid are included or must be ordered separately.
Installation and Service Notes
Reservoir service should be performed with the operator disabled, the gate secured, and the hydraulic system handled according to the current HySecurity service procedure. Do not disconnect hoses or fittings from a pressurized hydraulic circuit.
Keep the reservoir, hose fitting, and hydraulic fluid clean during service. Dirt, water, metal particles, or the wrong fluid can damage the pump, valves, cylinders, seals, and fittings. After installation, fill the system with the correct fluid, check for leaks, verify proper venting, and test operator movement before returning the gate to service.
Professional Advisory
Hydraulic reservoir replacement can involve pressurized fluid, moving gate hardware, pinch points, hydraulic pump components, and fluid contamination risks. A qualified HySecurity gate technician should handle the repair if the system has repeated leaks, contaminated fluid, pump noise, overheating, or unknown prior repairs.
Do not bypass covers, guards, limits, monitored entrapment protection, photo eyes, safety edges, hydraulic controls, disconnects, or controller protections to make the gate run. The hydraulic system, mechanical assembly, and safety devices should be repaired correctly and fully tested before the operator is returned to service.
Product Questions & Answers
What is the HySecurity MX3475 used for?
The HySecurity MX3475 is an offset reservoir assembly used in select HydraSwing hydraulic gate operator pump pack applications.
What is MX3475 commonly listed as?
MX3475 is commonly listed as RESERVOIR, OFFSET ASSY and also as a 4-quart reservoir with hose fitting for HydraSwing.
What operator is MX3475 commonly associated with?
Current listings commonly associate MX3475 with HySecurity / Nice HySecurity HydraSwing pump pack applications where the parts diagram confirms fitment.
Is MX3475 a complete pump pack?
No. MX3475 is the offset reservoir assembly. Complete HydraSwing pump packs such as MX3520, MX3521, MX3522, MX3523, MX3524, and MX3525 are separate assemblies.
Does MX3475 include a hose fitting?
Current listings describe MX3475 as a 4-quart reservoir with hose fitting. Verify current package contents before ordering if cap, additional fittings, hoses, or mounting hardware are required.
Is the breather cap included with MX3475?
Do not assume the breather cap is included unless your supplier confirms it. MX000686 is a related breather cap used in select HySecurity reservoir applications.
What should I check before replacing MX3475?
Check the reservoir, breather cap, hose fitting, hydraulic fluid condition, pump inlet, hose routing, leaks, pump pack layout, and parts diagram before replacing the reservoir assembly.
