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OPERATOR'S / PARTS
MANUAL
Snowblowers
Models
P-540
P-620
P-680 & P-680TRC
P-720 & P-720TRC
P-720-74
P-720-80
No. C278R1
06/07

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Table of Contents
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Summarization of Contents

Introduction
Product Identification
Entering model and serial number for product identification.
Safety
General Safety
General safety precautions and warnings for operating the snowblower safely.
Safety in Operation
Key guidelines for safe operation of the snowblower during use.
Safety
Safety in Transport
Essential safety measures for transporting the snowblower.
Safety in Storage
Guidelines for safely storing the snowblower when not in use.
Decals
Safety Decals Overview
Explanation and location of safety decals on the snowblower for user awareness.
Decals
Additional Safety Decals
Details and locations of additional safety decals on the snowblower.
Decals
Decal F and Maintenance Decals
Information on decal F and the purpose of maintenance decals.
Decals
Decals H and J
Details and explanations for specific operational decals H and J.
Assembly
Assembly Steps
Step-by-step instructions for assembling the snowblower components.
Starting Up
Start-Up Procedures
Detailed steps for preparing and starting the snowblower for operation.
Maintenance
Maintenance Schedule and Procedures
Routine maintenance tasks, lubrication points, and checks for snowblower longevity.
Storage
Storage Procedures
Steps for preparing and storing the snowblower for off-season or extended periods.
Troubleshooting
P.T.O. Shaft Issues
Common problems, causes, and corrections related to the PTO shaft and its components.
Troubleshooting
Snowblower Operational Issues
Diagnosing and resolving common operational problems with the snowblower.
Specifications
Model Specifications Overview
Detailed technical specifications for various Pronovost snowblower models.
Parts List - P-540, P-620
Assembly Diagram
Exploded view diagram illustrating the assembly of P-540 and P-620 snowblowers.
Parts List - P-540, P-620 (cont'd)
Component Details
Detailed list of parts and their reference numbers for P-540 and P-620 models.
Parts List - P-540, P-620 (cont'd)
Additional Component Details
Further component listings for P-540 and P-620 snowblowers.
Parts List - P-680, P-720
Assembly Diagram
Exploded view diagram illustrating the assembly of P-680 and P-720 snowblowers.
Parts List - P-680, P-720 (cont'd)
Component Details
Detailed list of parts and their reference numbers for P-680 and P-720 models.
Parts List - P-680, P-720 (cont'd)
Additional Component Details
Further component listings for P-680 and P-720 snowblowers.
Parts List - P-680TRC, P-720TRC
Assembly Diagram
Exploded view diagram illustrating the assembly of P-680TRC and P-720TRC snowblowers.
Parts List - P-680TRC, P-720TRC (cont'd)
Component Details
Detailed list of parts and their reference numbers for P-680TRC and P-720TRC models.
Parts List - P-680TRC, P-720TRC (cont'd)
Additional Component Details
Further component listings for P-680TRC and P-720TRC snowblowers.
Parts List - P-720-74, P-720-80
Assembly Diagram
Exploded view diagram illustrating the assembly of P-720-74 and P-720-80 snowblowers.
Parts List - P-720-74, P-720-80 (cont'd)
Component Details
Detailed list of parts and their reference numbers for P-720-74 and P-720-80 models.
Parts List - P-720-74, P-720-80 (cont'd)
Additional Component Details
Further component listings for P-720-74 and P-720-80 snowblowers.
Manual Chute Kit MR-4864
Parts and Assembly
Diagram and part list for the manual chute kit MR-4864.
Hydraulic Chute Kit SP-4864
Parts and Assembly
Diagram and part list for the hydraulic chute kit SP-4864.
Semi-Industrial Chute PSIG-5472
Parts and Assembly
Diagram and part list for the semi-industrial chute PSIG-5472.
Options
Option Diagrams Overview
Illustrations of various optional attachments and their components.
Options (cont'd)
Option Part Lists
Detailed part lists for various optional snowblower attachments.
P.T.O. Shaft # 6408-E
Parts and Assembly Diagram
Exploded view and part list for the P.T.O. Shaft # 6408-E.
P.T.O. Shaft # 6248-EG
Parts and Assembly Diagram
Exploded view and part list for the P.T.O. Shaft # 6248-EG.
P.T.O. Shaft # 8114-EG
Parts and Assembly Diagram
Exploded view and part list for the P.T.O. Shaft # 8114-EG.
Gear Box # 6451
Parts and Assembly Diagram
Exploded view and part list for Gear Box # 6451.
Gear Box # 8251
Parts and Assembly Diagram
Exploded view and part list for Gear Box # 8251.
Cylinder 25TR04
Parts and Assembly Diagram
Diagram and part list for Cylinder 25TR04.
Hydraulic Motor MLH Series
Parts and Assembly Diagram
Diagram and part list for Hydraulic Motors MLH100, MLH125, and MLH250.
Torque Chart
Torque Specifications Table
Table of torque specifications for various bolt sizes and grades.
Warranty
Warranty Information
Details on Pronovost product warranty coverage, terms, and conditions.

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