Volvo CTP155 Cabine Tilt Pump

Volvo CTP155 Cabine Tilt Pump: Technical Analysis, Functional Role, and Maintenance Overview

The Volvo CTP155 Cabine Tilt Pump is a critical component in the hydraulic cab tilting system of Volvo heavy-duty trucks. Designed for reliable performance in rigorous conditions, this pump enables the safe and efficient tilting of the driver’s cab to allow access to the engine bay. Whether for routine inspection or major repairs, the CTP155 ensures that cab tilting operations are smooth, safe, and controlled—minimizing operator effort and maximizing workshop safety. OEM 82053296 – 25379038

1. Function and Importance of the Cab Tilt Pump

In modern commercial trucks, the engine and transmission are located underneath the cab. For maintenance access, the entire cab is tilted forward using a hydraulic system. The CTP155 pump provides the hydraulic pressure necessary to move the cab tilt cylinder, which in turn raises or lowers the cab.

This component is essential for:

• Routine engine maintenance

• Repair operations (turbo, belts, injectors, etc.)

• Inspection tasks

• Breakdown diagnostics on the road

Without a functioning tilt pump, access to vital mechanical systems becomes severely restricted, potentially causing delays and increased service times.

2. Technical Specifications

• Part Number: CTP155

• Manufacturer: OEM supplier for Volvo Trucks

• Type: Manual hydraulic pump (lever-actuated)

• Operating Pressure: Typically 180–210 bar

• Pump Displacement: ~10–15 ml per stroke

• Material: Cast aluminum or steel body with corrosion-resistant finish

• Reservoir Capacity: Approx. 0.75–1.5 liters

• Mounting: Bolt-on frame with hose couplings for hydraulic cylinder

3. Compatibility and Vehicle Applications

The Volvo CTP155 Cabine Tilt Pump is compatible with several Volvo truck series:

• Volvo FH Series (long-haul transport)

• Volvo FM Series (regional distribution and logistics)

• Volvo FMX Series (construction and off-road)

The pump is typically mounted on the chassis frame and connected to the cab tilt cylinder and hydraulic hoses. Its placement allows easy manual access in case of cab system failure or breakdown scenarios.

4. Core Features and Functional Advantages

• Manual Operation: Does not rely on electric power, making it functional even during battery or ECU failure

• Pressure-Controlled Safety: Built-in pressure relief valves prevent overloading

• Compact Design: Space-efficient and lightweight for easy integration

• Low Maintenance: Sealed system with long-lasting hydraulic seals

• Precision Control: Smooth cab raising and lowering action prevents sudden drops

These features make it ideal for high-demand fleets and environments requiring frequent engine access.

5. Symptoms of a Failing Tilt Pump

Operators should be aware of the following signs of failure:

• Cab fails to lift or lower

• Hydraulic oil leakage near the pump housing or handle

• Unusual noises during pump operation

• Increased resistance or free movement of the handle (no pressure buildup)

• Fluid level drops frequently

Such issues may compromise cab stability and increase the risk of injury or further equipment damage.

6. Maintenance and Replacement Guidelines

Routine Checks:

• Inspect fluid levels every 3–6 months

• Check hydraulic fittings for leaks

• Test pump function as part of regular vehicle servicing

Replacement Procedure:

1. Tilt the cab partially and secure it using safety locks

2. Disconnect hydraulic lines and remove mounting bolts

3. Carefully detach the old pump

4. Install the new CTP155, ensuring proper hose orientation

5. Fill the reservoir with approved hydraulic fluid (ISO VG32/46)

6. Bleed the hydraulic system to remove air

7. Test the tilt action and inspect for leaks

Service Tip: Always use gloves and eye protection when handling hydraulic systems to avoid injury from high-pressure fluid.

7. Packaging, Storage, and Export Information

Packaging:

• Typically delivered in shock-resistant cartons

• Includes mounting bolts, plugs, and user instructions

Storage Instructions:

• Store upright in original packaging

• Keep in dry, cool, vibration-free area

• Avoid direct exposure to sunlight or corrosive substances

HS Code: 84132000 – Hydraulic hand pumps

8. Global Demand and Export Market

Volvo’s global presence across Europe, Asia, and South America makes the CTP155 tilt pump a high-demand replacement part, particularly in the following markets:

• Europe: Sweden, Germany, Spain, UK

• Africa: South Africa, Nigeria, Morocco

• Middle East: Turkey, UAE, Saudi Arabia

• South America: Brazil, Chile, Argentina

Exporters and parts distributors often include this part in cab system kits or engine access service kits.

Volvo CTP155 Cabine Tilt Pump

The Volvo CTP155 Cabine Tilt Pump plays a vital role in the overall serviceability of Volvo trucks. Its hydraulic performance, manual usability, and durable design make it indispensable for mechanics, fleet operators, and logistics managers. Ensuring regular inspection and timely replacement of this component leads to safer maintenance procedures, lower downtime, and long-term truck efficiency. For parts distributors and workshop operators, stocking the CTP155 pump ensures consistent support for Volvo’s popular FH, FM, and FMX truck models.

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