44-45-33-60B
Page 1 of 4
Models DR4200, DR4300, and
DR4500 Recorders
Replacement Instruction
Chart Hub Kit (30756150-501)
Document Number
Form: 44-45-33-60B
Effective: 7/00
Supersedes: 3/99
Kit Contents
This Chart Hub Replacement Kit contains the following parts:
Description
Quantity
•
Allen wrench 1, 5 mm
1
•
Chart hub ass’y, tamper resist.
1
•
Chart hub ass’y, large diam.
1
•
Compression spring
1
•
Chart hub ass’y, small diam.
1
Summary
Enclosed is a new chart hub kit with parts required to replace the chart
hub in a DR4200, DR4300, or DR4500 recorder. Use the following
procedures, as appropriate, to replace the existing chart hub assembly.
WARNING
Never access components inside the case, or remove or install
any connectors, with power applied.
Chart hub types
Chart Hub Type
Description
How to intall
Hub used with ink pens and
preprinted charts when
approval bodies or process
inspectors require tamper
proof operation.
Slide hub down to
bottom of motor shaft
and tighten set screw.
Standard hub used on all
DR4500/DR4300/DR4200
recorders.
Push hub onto motor
shaft.
Hub used with ink pens and
preprinted charts that have a
small center hole.
Push hub onto motor
shaft.
