Precor C842 User Manual

C842, C842i, C846, C846i Upright and Recumbent Cycle
Page 1
C842, C842i, C846, C846i Bicycle
Warning: This service manual is for use by Precor trained service providers only.
If you are not a Precor Trained Servicer, you must not attempt to service any Precor Product;
Call your dealer for service.
This document contains information required to perform the majority of troubleshooting, and
replacement procedures required to repair and maintain this product.
This document contains general product information, software diagnostic procedures (when
available), preventative maintenance procedures, inspection and adjustment procedures,
troubleshooting procedures, replacement procedures and electrical block and wiring diagrams.
To move directly to a procedure, click the appropriate procedure in the bookmark section to the
left of this page. You may “drag” the separator bar between this page and the bookmark section
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Unauthorized Reproduction and Distribution Prohibited By Law

Precor C842 Specifications

General

Resistance Type	Magnetic
Display	LCD
Programs	12
Drive System	Belt
Weight Capacity	350 lbs (159 kg)

Summary

Section One - Things You Should Know

Identification and Safety Guidelines

Defines directional terms, identifies bicycle models, and outlines crucial safety warnings.

Required Tools and Equipment

Lists necessary tools, equipment, and supplies for servicing the bicycle.

Preventive Maintenance and Procedures

Preventive Maintenance Schedule

Details owner and technician maintenance tasks, including weekly, quarterly, and on-site checks.

Software, Odometer, and Diagnostics

Explains accessing software features, diagnostic tests, and reading unit data like odometer.

Troubleshooting Operational Issues

Guides on diagnosing and resolving problems with cables, keypad, display, resistance, and mechanical operation.

Component Replacement Procedures

Replacing External and Seat Components

Covers replacement of covers, pedals, crankarms, and seat assemblies for upright/recumbent models.

Replacing Internal and Electrical Components

Details replacement of columns, interconnect cables, PCA, generator, battery, and PROM.

Replacing Drive System Components

Instructions for replacing drive belts, pulleys, bearings, and alternators.

System Diagrams and Overview

C846 Version 1 Wiring and Block Diagrams

Illustrates electrical connections and system layout for C846 version 1 units.

C842/C846 Version 2 Wiring and Block Diagrams

Shows electrical connections and system architecture for C842/C846 version 2 units.