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SHACMAN Air Dryer Assembly / Air Processing Unit DZ96189361087
Core Function
Installed downstream of the vehicle's air compressor, this component is specifically designed to filter out moisture, oil, carbon particles, and sediment from the compressed air, supplying high-purity, dry air to the vehicle's braking system and air suspension. It effectively prevents downstream components-such as brake valves and air chambers-from malfunctioning due to freezing, rusting, or oil-induced sticking, thereby ensuring safe braking operation.
Air Supply & Drying System Overhaul BOM
| No. | Part Number | Part Name (EN) | Qty | Core Function & Technical Requirements | Maintenance & Replacement Recommendation |
|---|---|---|---|---|---|
| 1 | DZ96189361087 | Integrated Air Processing Unit (APU) | 1 | Integrates multi-circuit protection valves, dryer base, and smart heated thermostat. | Core item to be replaced (Replace entirely if base valve core leaks oil/air or circuitry is damaged). |
| 2 | DZ9618930102 (Ref) | High-Coalescence Oil-Filtering Air Dryer Cartridge | 1 | Thread M39×1.5; contains molecular sieve beads and high-density oil-filter layers. | Mandatory routine maintenance item (Must be replaced separately during overhaul if the entire APU is not bought). |
| 3 | DZ96189361081 (Ref) | APU Heater Wire Harness Connector | 1 | Waterproof 2-Pin/3-Pin plug; connects to vehicle 24V harness for anti-freezing heating. | Check for oxidation or ablation; inspect closely before winter. |
| 4 | DZ9112340050 (Ref) | Air Compressor Discharge Pipe Assembly (Stainless Steel Corrugated Pipe) | 1 | High-temperature resistant stainless steel bellows or copper pipe; connects compressor to APU. | Check for severe carbon deposits, cracks, or internal oil sludge clogging. |
| 5 | Tube Size Specific | VOSS Air Line Quick Connector (Type 230/232, etc.) | 6-8 | Euro-standard pneumatic safety quick-fitting; provides high anti-vibration and oil sealing. | Recommended replacement upon disassembly (Plastic claws age; reused items easily cause micro-leaks). |
| 6 | DZ9112340023 (Ref) | Air Compressor Assembly (Air Pump) | 1 | Twin-cylinder or single-cylinder water-cooled compressor; source power of brake system. | If the APU contains thick sludge, the compressor is blowing oil severely; overhaul/replace the compressor. |
| 7 | Chassis Standard | APU Body Mounting Bracket & High-Strength Bolts | 1 Set | Grade 10.9 heavy-duty chassis tightener; suspends the APU outside the chassis frame. | Check bracket for fatigue cracks; replace bolts if threads are distorted. |
| 8 | DZ93259360001 (Ref) | Wet Air Tank / Main Air Reservoir Assembly | 1 | Aluminum alloy or high-strength steel tank; stores compressed air right after the APU. | Open the drain valve; if heavy oil/water sprays out, the old APU has failed; flush the reservoir. |
| 9 | Matched with Tank | Air Tank Manual/Automatic Drain Valve | 1 | Located at the bottom of the air tank; drains residual condensed moisture and oil regularly. | Check for blowholes, air leakage, or valve core spring failure; replace as needed. |
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