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SANY SSR220C-8H Full-hydraulic 22-ton single-drum road roller Radiator Assembly B5362A-E0110
Breakdown of the Composite Radiator Assembly
This assembly utilizes a modular architecture combining multiple units in parallel and series; a single module integrates three completely independent cooling cores designed to cool the road roller's various fluid systems:
1. Engine Coolant Radiator Core: Dissipates heat from the main cooling circuit of the Weichai WP6G200E331 engine (147 kW), preventing the engine from overheating.
2. Hydraulic Oil Cooler: The lifeline of the fully hydraulic road roller. High-frequency vibration operations generate immense heat in the travel pumps, vibration pumps, and drive motors; this component strictly maintains the hydraulic oil temperature below the safe limit of 85°C, preventing power loss caused by overheating in the hydraulic system.
3. Intercooler (Charge Air Cooler): Pre-cools the high-temperature air discharged from the turbocharger, thereby increasing intake air density, boosting power output, and optimizing combustion.
SANY SSR220C-8H Radiator System Overhaul Parts List (BOM)
| Category | No. | Part Name | Core Function & Specifications | Recommended Qty | Procurement & Assembly Process Warnings |
|---|---|---|---|---|---|
| 1. Core Assembly Module | 1 | 3-in-1 Combined Radiator/Cooler Assy | B5362A-E0110 (or B5362A-E0110S) Integrates: Water Radiator + Hyd. Oil Cooler + Intercooler |
1 Pc | Upon receipt, pressure test the cores to check for transit damage. Verify high-pressure oil port threads. |
| 2. Anti-Shock Cushioning (Critical for Crack Prevention) |
2 | Bottom Load-Bearing Rubber Damper | Heavy-duty rubber block that isolates steel drum and exciter vibrations from the radiator. | 2 Pcs | Critical Step: Old dampers are usually hardened and lose elasticity. They must be replaced to prevent the new radiator from cracking. |
| 3 | Top Limiter Rubber Damper / Bushing | Upper bracket mounting and stabilization anti-vibration components. | 2 Pcs | Do not over-tighten the mounting bolts; excessive squish destroys the shock-absorbing properties. | |
| 3. Air Intake & Intercooler Piping | 4 | Intercooler Inlet Silicone Hose | Connects turbocharger outlet to intercooler inlet (High-Temp, Φ76mm / 3 inch). | 1 Pc | Subject to 150°C heat; easily softens or delaminates over time, causing boost leaks and power loss. |
| 5 | Intercooler Outlet Silicone Hose | Connects intercooler outlet to engine intake manifold. | 1 Pc | Check for rubber softening caused by minor oil mist saturation; replace if necessary. | |
| 6 | Heavy-Duty T-Bolt Hose Clamp | High-strength stainless steel clamps specifically designed for pressurized intercooler piping. | 4 Pcs | Never use cheap worm-drive hose clamps; high boost pressure can cause the hose to blow off under full load. | |
| 4. Engine Cooling Circulation | 7 | Upper Radiator Hose (Rubber) | Connects engine thermostat housing to radiator top inlet (Φ50mm). | 1 Pc | Rubber hardens over years of heat cycles; complete update is advised during an overhaul. |
| 8 | Lower Radiator Hose (Rubber) | Connects radiator bottom outlet to engine water pump inlet. | 1 Pc | Check internal walls for scale accumulation, restriction, or signs of peeling. | |
| 9 | Heavy-Duty Coolant Hose Clamp | Heavy-gauge clamps for locking upper and lower water hoses securely. | 4 Pcs | Ensure clamps seat squarely behind the anti-slip metal ridges of the pipe connections. | |
| 5. Hydraulic Oil Circuit & Seals | 10 | Hydraulic Port O-Ring Kit | Heavy Metric Series (M36/M42) or SAE flange face sealing O-rings. | 1 Set (4 Pcs) | Critical Step: Never reuse old O-rings. Use high-pressure, chemical-resistant fluororubber (FKM/Viton) seals. |
| 11 | Hydraulic Return Filter Element | Filtration core for LHD travel and vibration closed-loop systems. | 1~2 Pcs | Opening the hydraulic lines introduces micro-dust and air. Replacing return filters simultaneously is a must. |
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