Honeywell DR4300 Series Guide
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.
Kit Instruction, continued
Page 2 of 4 44-45-33-60B
Component Location Refer to Figure 1 for the component locations and Table 1 for the
for DR4200/DR4300 installation procedure.
Screws 24240
Figure 1 – Component Location
DR4200/DR4300 Follow the procedure in Table 1 to replace the existing chart hub
Procedure assembly in your recorder.
Table 1 –
Chart Hub Assembly Replacement for DR4200/DR4300 Recorders
Step Action
1Open the chart door and swing the chart plate out.
2Remove chart hub (front of chart plate) and chart motor (rear
of chart plate) by removing screws. Save screws. Pull hub
off the motor.
3Select the chart hub from the kit that matches the one you
removed.
4Attach hub to motor. Refer to chart hub types on page 1.
5Hold motor in place and adjust chart hub flush with platen
and centered in platen opening.
6Re-install motor with screws. Ensure that chart hub rotates
freely and does not bind.
Kit Instruction, continued
44-45-33-60B Page 3 of 4
Component Location Refer to Figure 2 for the component locations and Table 2 for the
for DR4500 installation procedure.
Chart
Hub
Chart Motor
Spring
24241
Figure 2 –Component Location
DR4500 Procedure Follow the procedure in Table 2 to replace the existing chart hub in your
recorder.
Table 2 –Chart Hub Assembly Replacement for DR4500 Recorder
Step Action
1Open the chart door and swing the chart plate out.
2Remove chart hub and motor assembly by removing screws.
Save screws. Pull hub off the motor.
3Select the appropriate chart hub from the kit.
4For Classic models (DR45A1, DR45A2):
Assemble chart hub to chart motor—no spring is used. See
Chart hub types on page 1.
For Truline models (DR45AT, DR45AR, DR45AW, DR45AH,
DR45AP, DR45AS):
Slip new spring over chart motor shaft before pushing on the
chart hub assembly. See Chart hub types on page 1.
5Hold motor in place and adjust chart hub flush with platen
and centered in platen opening.
6Re-install motor with screws. Ensure that chart hub rotates
freely and does not bind.
Sensing and Control
Honeywell
11 West Spring Street
Freeport, IL 61032
44-45-33-60B 0700 Printed in USA www.honeywell.com/sensing
Warranty/Remedy
Honeywell warrants goods of its manufacture as being free of defective materials and faulty
workmanship. Contact your local sales office for warranty information. If warranted goods
are returned to Honeywell during the period of coverage, Honeywell will repair or replace
without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is
in lieu of all other warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. Specifications may change
without notice. The information we supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
While we provide application assistance personally, through our literature and the
Honeywell web site, it is up to the customer to determine the suitability of the product in
the application.
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