Pace ST 55E - PS-70;PS-90 Heater Replacement

©2001 PACE Inc., Laurel, Maryland Page 18 of 20
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Defective Heater Replace Heater Assembly
Heater Specifications: PS-90 = 8-10 ohms
PS-70 = 11.3-12.3 ohms
Connector Plug Pin-Outs
Table 4: Heater Assembly Diagnostic Procedures
PS-70/PS-90 Heater Replacement
Ensure that the installed heater of the PS-70/PS-90 handpiece is defective by referring to Table 4
(Heater Assembly Checkout Procedures). If replacement becomes necessary, perform the following
procedure to ensure optimum performance and maximize the
life expectancy of the heater.
1. Allow the heater to cool.
2. Remove the Heater Retaining Nut.
3. Pull the Heater Assembly from the Handle. Discard
defective Heater Assembly.
4. Align the connector key on the handle end of the
replacement Heater Assembly with the keyway slot on
the handle.
5. Push the Heater Assembly fully into the handle.
6. Replace the Heater Retaining Nut and tighten by
hand.
Packing List
Quantity Supplied
ST 45 or ST 55
with PS-70
ST 45 or ST 55
with PS-90 ST 45 TT
Item # Description Part Number ST 45
ST 55
ST 45E
ST 55E
ST 45
ST 55
ST 45E
ST 55E ST 45 ST 45E
1 System Power Supply ------ 1 1 1 1 1 1
2 PS-70 Handpiece Kit
(37W)
6993-0236-P1 0 0 1 1 0 0
3 PS-90 Handpiece Kit
(51W)
6993-0199-P1 1 1 0 0 0 0
4 TT-65 Handpiece (74W) 7025-0001 0 0 0 0 1 1
5 Power Cord, 115V 1332-0094 1 0 1 0 1 0
6 Power Cord, 230V 1332-0093 0 1 0 1 0 1
7 TT-65 Tip & Tool Stand ----- 0 0 0 0 1 1
8 ST TT Accessory Kit ----- 0 0 0 0 1 1
9 Tip Tool 1100-0206 1 1 1 1 1 1
10 Operations Manual 5050-0453 1 1 1 1 1 1
11 TT-65 Operation Manual 5050-0336 0 0 0 0 1 1
Table 5: Packing List
Spare Parts
Item # Description PACE Part Number
1 Fuse, 1.0 Amp Time Lag (ST 45 and ST 55) 1159-0246-P5