UnionSpecial 53700B Adjusting Instructions And Illustrated Parts List page 5

ILLUSTRATIONS
This catalog has been arranged to simplify ordering repair parts. Exploded views of various sections of the
mechanism are shown so that the parts may be seen in their actual position in the machine. On the page
opposite the illustration will be found a listing of the parts with their part numbers, descriptions and the
number of pieces required in the partcular view being shown.
Numbers in the first column are reference numbers only and merely indicate the position. of that part in the
illustration. Reference numbers should never be used in ordering parts. Always use the part number listed
in the second column.
Component parts of sub-assemblies which can be furnished for repairs are indicated by indenting their
descriptions under the description of the main subassembly. Example:
23. 29105Q
24. 22559B
25. 22894D
26. 22894C
27. 22559A
It will be noted in the above example that the eccentric and bearing are not listed. The reason is that
replacement of these parts individually is not recommended, so the complete sub-assembly should be
ordered.
In those cases where a parts for the class 53700B and 53800B are not the same the difference will be
shown in the illustrations and descriptions. When a part is used in all machines covered in this catalog no
machine style is mentioned.
At the back of the book will be found a numerical index of all the parts shown in this book. This will facilitate
locating the illustration and description when only the part number is known.
Where the construction permits, each part is stamped with its part number. On some of the smaller
parts, and on those where the construction does not permit, an identification letter is stamped in to
distinguish the part from similar ones.
Part numbers represent the same part, regardless of catalog in which they appear.
IMPORTANT! ON ALL ORDERS, PLEASE INCLUDE PART NAME AND STYLE OF MACHINE FOR
WHICH PART IS ORDERED.
ORDERING REPAIR PARTS
Looper Drive Eccentric Assembly ...................................................... 1
Bearing Cap Screw, upper ..................................................... 2
Eccentric Spot Screw ............................................................ 1
Eccentric Set Screw .............................................................. 1
Bearing Cap Screw, lower ...................................................... 2
IDENTIFYING PARTS
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