J&M 220 Operating And Maintenance Manual page 3

MODEL 220
HYDRAULIC
IMPACT HAMMER
PREFACE
This manual was prepared to acquaint the owner, operator and serviceman with the
construction, operation and servicing of the J&M Model 220 Hydraulic Impact Pile Hammer
and the J&M Model 325 Power Unit. We strongly suggest that this manual be studied carefully
and understood by all personnel involved in operating or performing maintenance work on the
hammer. J&M equipment is engineered to provide reliable operation and a long servJ&M life
under normal operating conditions. Equipment reliability and service life can be improved by
following the maintenance procedures in this manual.
This manual is divided into seven sections- Introduction, General information, Preparation for
Operation, Operation, Maintenance, Trouble-Shooting and Ordering Parts.
The General Information section contains a brief description of the hammer and specification
information.
The Preparation for Operation section contains information about maintenance and other work
required before starting the hammer.
The Operation section includes general operating information plus details on hot and cold
weather operation.
The Maintenance & Adjustments section contains routine maintenance procedures and
instructions for making adjustments and repairs to the hammer.
The Trouble-Shooting section has suggestions for identifying and resolving operating
difficulties.
The Ordering Parts section contains information for ordering parts including parts drawings and
lists.