Jack Lines for SJ Petro Rig ZJ40 (Z07020000002AA)

1

1101002012

Hose assembly 8I-600

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Long-term high-pressure operation leads to steel wire fatigue; 2. Friction with rig body due to improper fixing; 3. Aging of outer rubber from sun and rain.

1. Avoid excessive bending (minimum bending radius ≥ 8 times the hose outer diameter); 2. Use matching pipe clamps to fix, preventing friction with sharp edges; 3. Inspect outer layer regularly for cracks and replace in time.

2

1101002013

Hose assembly 8I-650

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Pressure impact from sudden jack start/stop; 2. Oil contamination causing inner layer corrosion; 3. Loose joints leading to oil leakage and local wear.

1. Ensure stable hydraulic system pressure (avoid exceeding 31.5MPa); 2. Replace hydraulic oil regularly to prevent contamination; 3. Tighten joints with specified torque and recheck weekly.

3

1101002014

Hose assembly 8I-700

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Fatigue damage from frequent jack lifting cycles; 2. External impact from drilling tools; 3. Low-temperature hardening and cracking in cold environments.

1. Avoid frequent overloading of the jack; 2. Install protective sleeves at easily impacted positions; 3. Keep hose away from low-temperature areas or use low-temperature resistant accessories in cold weather.

4

1101002015

Hose assembly 8I-750

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Wear caused by contact with drilling fluid (corrosion and friction); 2. Improper installation leading to tension and fatigue; 3. Aging of rubber due to long-term exposure to high temperature.

1. Clean hose surface regularly to remove drilling fluid residues; 2. Ensure proper length during installation (avoid tension or excessive slack); 3. Keep away from high-temperature components like exhaust pipes.

5

1101002016

Hose assembly 8I-800

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Steel wire breakage due to excessive bending; 2. Joint corrosion leading to leakage and secondary damage; 3. Contamination of hydraulic oil causing inner layer abrasion.

1. Arrange hose routing reasonably to avoid sharp bends; 2. Apply anti-corrosion grease to joints regularly; 3. Replace oil filter element every 3 months to keep oil clean.

6

1101002017

Hose assembly 8I-1000

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Fatigue from long-term high-frequency use; 2. Outer layer wear caused by dust and gravel in desert drilling sites; 3. Pressure fluctuation leading to internal damage.

1. Reduce unnecessary high-frequency lifting operations; 2. Install dust covers for hoses in desert areas; 3. Check hydraulic system pressure regularly to avoid fluctuations.

7

1101002023

Hose assembly 8Ⅰ-1050

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Aging and cracking of outer rubber due to UV radiation; 2. Loose pipe clamps leading to hose shaking and friction; 3. Internal blockage causing pressure buildup and damage.

1. Cover hoses with anti-UV sleeves for outdoor use; 2. Tighten pipe clamps monthly and replace worn clamps; 3. Clean hoses regularly to prevent internal blockage.

8

1101002024

Hose assembly 8Ⅰ-1100

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Impact damage from falling objects on the drilling site; 2. Corrosion caused by saltwater in coastal drilling areas; 3. Fatigue of steel wire reinforcement layer from repeated pressure changes.

1. Install protective guards above hoses in high-risk areas; 2. Use anti-corrosion coatings for hoses in coastal areas; 3. Avoid sudden pressure changes when starting/stopping the jack.

9

1101002027

Hose assembly 8Ⅰ-2650

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Excessive slack leading to hose entanglement and wear; 2. Long-term heavy load causing steel wire fatigue; 3. Joint leakage leading to oil loss and component damage.

1. Fix hose at multiple points to avoid excessive slack; 2. Do not exceed the jack’s rated load; 3. Inspect joints for leakage daily and replace sealing parts in time.

10

1101002028

Hose assembly 8Ⅰ-2350

Inner layer: oil-resistant nitrile rubber; reinforcement: 4-layer high-strength steel wire; outer layer: wear-resistant synthetic rubber

1. Friction with the ground or rig structure during movement; 2. Aging of rubber due to long service life (exceeding 8 months); 3. Contamination of hydraulic oil causing inner layer corrosion.

1. Use support brackets to lift hoses off the ground; 2. Replace hoses every 8-10 months regardless of appearance; 3. Use hydraulic oil that meets SAE 10W-30 standard.

1

QBJ6011602

M16X1.5-Z1/4" fitting

High-strength carbon steel (45# steel), surface hot-dip galvanizing treatment, internal thread precision machining

1. Thread wear caused by over-tightening during installation; 2. Corrosion from drilling fluid and moisture; 3. Vibration leading to thread loosening and secondary wear.

1. Tighten with torque wrench (specified torque: 25-30N·m) to avoid over-tightening; 2. Apply anti-corrosion thread sealant during installation; 3. Recheck and retighten monthly.

2

QBJ10030202

Z1/4"X1/4" bushing

High-strength carbon steel (45# steel), surface anti-rust coating, internal and external thread precision grinding

1. Thread damage caused by improper disassembly (using pliers directly); 2. Corrosion leading to thread sticking; 3. Dimensional deformation due to impact.

1. Use proper tools (socket wrench) for disassembly and assembly; 2. Apply anti-rust oil regularly to thread surfaces; 3. Avoid collision with hard objects during storage and use.

1

Z07200000029AA

Clamping piece assembly, hydraulic line

Base: high-strength cast steel; clamping block: engineering plastic (nylon 66); bolts: galvanized carbon steel (8.8 grade)

1. Wear of clamping block due to long-term pipeline shaking; 2. Bolt corrosion and loosening leading to poor fixing; 3. Cast steel base deformation due to excessive clamping force.

1. Replace clamping blocks every 6 months or when wear exceeds 0.5mm; 2. Tighten bolts regularly and replace corroded bolts in time; 3. Avoid over-clamping to prevent base deformation and pipeline damage.

1

Are all these jack line components fully compatible with SJ Petro Rig ZJ40?

Yes, all components (including hose assemblies, fittings, and clamping piece assemblies) are exclusively designed for SJ Petro Rig ZJ40, strictly following the original model specifications (Z07020000002AA series). They comply with SAE J517 and ANSI/ASME standards, ensuring 100% compatibility with the rig’s jack hydraulic system without any modification.

2

How to choose the correct replacement hose assembly for different jack positions?

Choose according to the original model and length marked on the old hose assembly (e.g., 1101002028 for 8Ⅰ-2350 length). Ensure the 8I series specification is consistent, as it determines pressure resistance and interface size. Do not replace with non-original hoses, as they may not meet the rig’s high-pressure requirements (max 31.5MPa) and cause bursting.

3

What is the recommended maintenance cycle for these jack line components?

Hose assemblies: replace every 8-10 months; Fittings: inspect every month, replace every 12 months; Clamping piece assemblies: replace clamping blocks every 6 months, inspect bolts monthly. Daily inspection of all components for leakage, wear, and loosening is required to avoid sudden faults.