Heater Replacement; Packing List/Spare Parts - Pace ST 25 Operation And Maintenance Manual

No Ground on Tip
Heater Specifications: PS-90 = 8-10 ohms
PS-70 = 11.3-12.3 ohms
Connector Plug Pin-Outs
PS-70/PS-90 Heater Replacement
Ensure that the installed heater of the PS-70/90 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
Item # Description
1 System Power Supply
2 PS-70 Handpiece Kit
(37W)
3 PS-90 Handpiece Kit
(51W)
4 TT-65 Handpiece (74W)
5 Power Cord, 115V
6 Power Cord, 230V
7 TT-65 Tip & Tool Stand
8 ST TT Accessory Kit
9 Tip Tool
10 Operations Manual
11 TT-65 Operation Manual
Spare Parts
Item # Description
1 Fuse, 1.0 Amp Time Lag (ST 45 and ST 55)
Fuse, 1.0 Amp Time Lag (ST 45E and ST 55E)
2 PS-70 Heater, 21V, 37W
3 PS-90 Heater, 21V, 51W
©2001 PACE Inc., Laurel, Maryland
All Rights Reserved
Check resistance: Pin 4 to
a new tip. Resistance
should be less than 2 ohms,
if not see Solution
Table 2: Heater Assembly Diagnostic Procedures
Part Number
------
6993-0236-P1
6993-0199-P1
7025-0001
1332-0094
1332-0093
-----
-----
1100-0206
5050-0452
5050-0336
Table 3: Packing List
Oxidation build-up in heater
Bore
Defective Heater
Quantity Supplied
ST 25 or ST 35 ST 25 or ST 35
with PS-70 with PS-90
ST 25 ST 25E ST 25
ST 35 ST 35E ST 35
1 1 1
0 0 1
1 1 0
0 0 0
1 0 1
0 1 0
0 0 0
0 0 0
1 1 1
1 1 1
0 0 0
PACE Part Number
Clean Heater Bore using
wire brush
Replace Heater Assembly
ST 25 TT
ST 25E
ST 35E ST 25 ST 25E
1 1 1
1 0 0
0 0 0
0 1 1
0 1 0
1 0 1
0 1 1
0 1 1
1 1 1
1 1 1
0 1 1
1159-0246-P5
1159-0213-P5
610-0128-P1
6010-0095-P1
Page 12 of 14