Carrier Brake Lines & Matching Components for ZJ40 Truck-mounted Drilling Rig

Core Purpose & Equipment Adaptation

All components listed in this document are exclusively designed and manufactured for the ZJ40 Truck-mounted Drilling Rig, with the core component being the carrier brake lines (Model: Z08110000002AA). These parts are tailored to meet the diverse needs of drilling rig operators, maintenance technicians, and procurement personnel—providing reliable braking system support for operators, professional maintenance guidance for technicians, and accurate, compatible procurement references for buyers. As the "safety lifeline" of the ZJ40 truck-mounted drilling rig, the carrier brake system controls the rig’s braking and parking functions, directly determining operational safety, equipment stability, and personnel protection under harsh on-site drilling conditions. All components comply with API Spec 7K, ISO 4394-1, and GB/T 3766-2015 standards, ensuring compatibility, durability, and compliance with industry safety requirements.

Product Introduction

The product suite centered on the Z08110000002AA carrier brake lines includes a full range of matching components: 10mm and 6mm hose assemblies, various supports, a brake pedal mechanism, bending plates, fasteners (bolts, nuts, spring washers), sealing washers, bushings, fittings, pipe clamps, tees, subs, and other auxiliary parts. Each component is precision-manufactured to match the ZJ40 truck-mounted drilling rig’s brake system perfectly, with no modifications required during installation. These parts work together to form a complete, closed-loop brake transmission system, ensuring rapid, stable, and leak-proof braking response—solving common on-site problems such as brake failure, oil leakage, and component loosening caused by mismatched or low-quality parts.

Function Description

The core function of this product suite is to ensure the safe and reliable operation of the ZJ40 truck-mounted drilling rig’s carrier brake system. Specifically, the Z08110000002AA carrier brake lines transmit high-pressure brake fluid to each braking component, converting hydraulic pressure into mechanical force to achieve rapid braking and stable parking. Hose assemblies provide flexible connection between fixed and moving components, adapting to the rig’s vibration and relative movement during operation. Supports and bending plates fix the brake lines and pedal mechanism, preventing displacement caused by vibration. Fittings, bushings, and sealing washers ensure leak-proof connection of the hydraulic system, maintaining stable brake pressure. The brake pedal mechanism (Z02230000002AA) acts as the human-machine interaction terminal, enabling operators to control braking force accurately. Fasteners and pipe clamps enhance the overall stability of the system, avoiding component loosening under harsh conditions.

Structural Features

This product suite features a scientific, durable structural design tailored to the harsh drilling environment, with four key characteristics: First, the carrier brake lines (Z08110000002AA) adopt high-pressure seamless steel pipe with an anti-corrosion epoxy coating, combining high pressure resistance (up to 25MPa) and corrosion resistance, with a polished inner wall to reduce hydraulic resistance. Second, hose assemblies use a three-layer structure (inner NBR rubber, middle multi-layer high-strength steel wire reinforcement, outer wear-resistant CR rubber), ensuring flexibility and pressure-bearing capacity, with a minimum bending radius of 8 times the hose diameter to avoid damage during installation. Third, supports and bending plates are made of thickened low-carbon steel with surface powder coating or galvanizing, ensuring high load-bearing capacity and corrosion resistance, with a rational structural design to distribute stress evenly. Fourth, all fittings, bushings, and fasteners are precision-machined with standardized threads (compliant with ISO 261 and DIN 13-1), ensuring tight connection and interchangeability, while sealing washers are made of oil-resistant NBR rubber to ensure long-term leak-proof performance.

Applicable Working Conditions

This product suite is specially designed for the harsh working conditions of the ZJ40 truck-mounted drilling rig, suitable for various on-site environments including: 1. Outdoor open-air drilling sites, resistant to wind, rain, dust, and extreme temperature changes (-30℃ to 80℃); 2. High-vibration working conditions during drilling, with components designed to withstand high-frequency vibration (10-50Hz) without loosening or damage; 3. Drilling sites with drilling fluid, oil stains, and other chemical contaminants, with anti-corrosion and oil-resistant materials to avoid component damage; 4. High-pressure working environments (brake system pressure 15-25MPa), ensuring stable performance without leakage or burst; 5. Mobile drilling operations, with flexible hose assemblies adapting to the rig’s movement and position adjustment, and supports ensuring stable fixation during transportation and operation. It is widely applicable to oil and gas drilling, geological exploration, and other fields where the ZJ40 truck-mounted drilling rig is used, meeting the safety and reliability requirements of long-term continuous operation.

Maintenance Suggestions

To extend the service life of the carrier brake system components, reduce maintenance costs, and ensure operational safety, the following maintenance suggestions are provided for daily use: 1. Daily inspection: Check the carrier brake lines, hose assemblies, and fittings for oil leakage, damage, or loosening; check the brake pedal mechanism for flexibility; clean the surface of components to remove dust and oil stains. 2. Weekly inspection: Tighten all fasteners (bolts, nuts) to the standard torque (8-20 N·m according to size); check the wear of hose assemblies (no bulging, cracking, or outer layer peeling); inspect the elasticity of the spring (P9000036AA) and the stability of supports. 3. Monthly inspection: Conduct a brake system pressure test (18-22MPa, 30 minutes) to check for leak-proof performance; replace aging or damaged sealing washers; inspect the corrosion of components and reapply anti-corrosion paint or anti-rust oil if needed. 4. Quarterly maintenance: Disassemble and inspect key fittings and bushings for thread wear; check the bending plate (P7200048AA) for deformation; replace hose assemblies that have been in service for more than 3 years, even if no obvious damage is found. 5. Special maintenance: After working in humid, dusty, or chemical-contaminated environments, clean the components thoroughly and conduct anti-corrosion treatment; replace damaged components immediately to avoid system failure.

On-site Fault Maintenance Cases

Case 1: Brake Oil Leakage

Fault Phenomenon: A ZJ40 truck-mounted drilling rig experienced obvious brake oil leakage during operation, with reduced brake pressure and delayed braking response, posing a safety hazard. On-site Inspection: The leakage occurred at the M18X1.5-Z3/8" fitting (QBJ5071803), and the seal surface of the fitting was found to be contaminated with dust and oil stains, with slight wear on the thread. Cause Analysis: The operator did not clean the seal surface before installing the fitting, and long-term vibration caused the fitting to loosen, leading to oil leakage. Solution: Disassemble the fitting, clean the seal surface and thread thoroughly, apply anti-corrosion sealant, and tighten it with a torque wrench to the standard torque (12 N·m); replace the sealing washer (4317000218) and conduct a pressure test. After treatment, the brake system operated normally without oil leakage.

Case 2: Brake Pedal Inflexibility

Fault Phenomenon: The brake pedal of a ZJ40 truck-mounted drilling rig became inflexible during use, requiring excessive force to press, and the braking effect was significantly reduced. On-site Inspection: The brake pedal mechanism (Z02230000002AA) was stuck, the connection yoke pin (P2000894AA) was rusted, and the spring (P9000036AA) lost elasticity. Cause Analysis: Long-term use in a humid environment caused rust on the connection yoke pin, and the spring suffered fatigue loss of elasticity due to long-term compression. Solution: Disassemble the brake pedal mechanism, clean and derust the connection yoke pin, apply lubricating oil; replace the fatigue spring with a new one (P9000036AA), and adjust the pedal position to ensure flexibility. After reassembly, the brake pedal returned to normal, and the braking effect was restored.

Case 3: Hose Assembly Burst

Fault Phenomenon: A 10mm hose assembly (Z08330300014AA) of the carrier brake system burst suddenly during the drilling operation of a ZJ40 truck-mounted drilling rig, resulting in rapid loss of brake fluid and complete failure of the brake system. On-site Inspection: The burst hose assembly had obvious over-bending marks, the outer layer was worn, and the steel wire reinforcement layer was broken. Cause Analysis: The hose assembly was installed with a bending radius smaller than the minimum requirement (less than 8 times the hose diameter), and long-term high-pressure pulse and vibration caused fatigue damage to the steel wire layer, leading to burst. Solution: Replace the burst hose assembly with a new one of the same model, ensure the installation bending radius is not less than 80mm (10mm hose), install a protective sleeve at the friction point, and conduct a pressure test to confirm no leakage. After improvement, the hose assembly operated stably without recurrence of the fault.

Case 4: Pipe Loosening and Displacement

Fault Phenomenon: During the mobile operation of a ZJ40 truck-mounted drilling rig, the carrier brake lines (Z08110000002AA) loosened and displaced, colliding with other components and causing surface scratches. On-site Inspection: The supports (P7100218AA, P7100219AA) were loose, the pipe clamp (QBJ11040330) was damaged, and the fasteners were not tightened to the standard torque. Cause Analysis: The fasteners were not re-tightened after long-term vibration and mobile operation, leading to loosening of supports and pipe clamps, and displacement of brake lines. Solution: Tighten all fasteners to the standard torque, replace the damaged pipe clamp, add anti-vibration gaskets between the supports and the rig frame, and fix the brake lines with pipe clamps at intervals to avoid displacement. After treatment, the brake lines remained stable during subsequent mobile and drilling operations.

FAQ (Frequently Asked Questions)

Procurement Guide

All components listed in this document are 100% compatible with the ZJ40 Truck-mounted Drilling Rig, strictly manufactured in accordance with API Spec 7K, ISO 4394-1, and GB/T 3766-2015 standards, ensuring high quality, durability, and reliable performance. Each component undergoes strict quality inspection before leaving the factory, with complete specifications and reliable interchangeability—effectively solving common on-site problems such as brake oil leakage, component loosening, and brake failure, reducing maintenance costs and equipment downtime, and ensuring the safety and efficiency of drilling operations. Whether you need to purchase individual components (such as hose assemblies, fittings, or fasteners) or the complete carrier brake line suite, we can provide you with genuine, high-quality products. We also offer professional technical support and after-sales service to answer your installation, maintenance, and fault handling questions. Contact us today to meet your procurement needs and ensure the stable operation of your ZJ40 truck-mounted drilling rig’s carrier brake system.

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