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Ariel JGJ/2 User Manual

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ARIEL
Heavy Duty
Balanced Opposed
Compressors
TECHNICAL MANUAL
For Models:
JGW, JGR and JGJ
ARIEL CORPORATION
35 BLACKJACK ROAD, MOUNT VERNON, OHIO 43050
TELEPHONE: 740-397-0311 FAX: 740-397-3856
VISIT OUR WEB SITE: www.arielcorp.com
EMAIL: info@arielcorp.com
REV: 1/01

Table of Contents

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Ariel JGJ/2 Specifications

General IconGeneral
BrandAriel
ModelJGJ/2
CategoryAir Compressor
LanguageEnglish

Summary

SECTION 1 - DESIGN SPECIFICATIONS & DATA

General

General information about Ariel compressors, their design, and manual usage.

Specifications

Detailed frame specifications for JGW/JGR models, including dimensions, weight, and loads.

Important Safety Information

Critical safety warnings regarding pressure, valves, noise, and hot gas areas.

Fastener Tightening Torque

Guidelines and values for tightening various fasteners used in Ariel compressors.

Tightening Torque Procedures

Procedures and guidelines for accurate fastener tightening using torque wrenches.

SECTION 2 - INSTALLATION

Procedure For Setting and Aligning

Detailed steps for setting and aligning the compressor on its skid.

Setting

Procedure for setting the compressor on the skid, including bolt tightening and shim adjustment.

Alignment

Importance and methods for achieving proper compressor alignment for satisfactory performance.

SECTION 3 - START UP

General

Importance of following the Start Up Check List and familiarizing with manuals.

Start-up Check List

Comprehensive checklist for critical steps before and after compressor start-up.

Maximum Allowable Working Pressure

Definition and importance of MAWP as per API Specification 11P.

Relief Valve Settings

Guidelines for setting relief valves based on API SPEC 11P and equipment protection.

Filling Sump & Priming a Main Oil Lube Oil System - Before Starting

Procedure for filling the sump and priming the main lube oil system before operation.

SECTION 4 - LUBRICATION AND VENTING

Cylinder And Packing Lubrication Requirements

Factors influencing cylinder oil dilution and selection criteria for lubrication.

SECTION 5 - MAINTENANCE

Connecting Rod - Removal

Step-by-step procedure for removing the connecting rod from the compressor frame.

Connecting Rod - Installation

Procedure for installing the connecting rod, including bearing shells and bolts.

Crosshead - Removal

Step-by-step procedure for removing the crosshead from the compressor.

Crosshead - Installation

Procedure for installing the crosshead, ensuring correct alignment and piston end clearance.

Crankshaft - Removal

Detailed steps for removing the crankshaft, including coupling, bearing caps, and chain sprocket.

Crankshaft - Installation

Procedure for lowering and installing the crankshaft, attaching bearing caps, and measuring clearance.

Piston and Rod - Removal

Detailed steps for removing the piston and rod assembly from the cylinder, including cautions.

Piston and Rod - Installation

Procedure for installing the piston/rod assembly into the cylinder, checking clearances and torques.

Piston Rod Pressure Packing - Removal

Steps for removing the piston and piston rod, and then the packing diaphragm and oil wiper.

Piston Rod Packing - Reassembly

Instructions for reassembling pressure packing, including cleaning, inspection, and lubrication.

Valves - Removal

Procedure for removing valve caps and valve assemblies, including safety checks.

Bolt Tightening for Valve Caps

Proper fastener tightening technique for sealing valve caps, especially for high pressure applications.

VVCP - Variable Volume Clearance Pocket Head End Unloader

Procedure for removing and disassembling the VVCP from the cylinder.

Maintenance

Replacing VVCP packing and cleaning parts. Reassembling VVCP with new O-ring and proper alignment.

Re-assembly

Instructions for assembling water-cooled packing cases, ensuring correct order and ring placement.

Testing

Procedures for 100% verification of internal passages and pressure leak testing of packing cases.

SECTION 6 - TECHNICAL ASSISTANCE

Daily

Daily checks for frame oil pressure, level, lubricator block, vents, leaks, and operating parameters.

Trouble Shooting

Identification and resolution of common problems encountered during compressor operation.

Low Oil Pressure

Possible causes for low oil pressure, including pump failure, cold oil, dirty filters, and leaks.

Noise in Cylinder

Possible causes for cylinder noise, such as loose piston, broken valves, or liquids in the cylinder.

Excessive Packing Leakage

Causes for excessive packing leakage, including worn rings, improper lube, and rod issues.

Packing Over Heating

Causes for packing overheating, such as lubrication failure, worn rings, or rod issues.

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