CSZ MICRO-TEMP LT 749 - Page 32

FIELD REPAIR/SERVICE MICRO-TEMP
®
LT, Model 749
OPERATION AND TECHNICAL MANUAL
Page 32 of 75
PREVENTIVE MAINTENANCE CHECKLIST
MICRO-TEMP
®
LT SYSTEM- Model 749
Hospital Control No. Serial Number
Check When
Completed
1. External cabinet in good condition. (No unusual dents or missing parts) 
2. All labels properly affixed. 
3. Quick disconnect couplings are tight, straight, and not leaking. 
4. Power cord (no cuts or exposed wire) and plug (no bent or missing prongs). 
5. Drain and clean reservoir. See Section (4-2). 
6. Refill reservoir with distilled water. See Section (4-2.2). 
7. Condition of pads, hoses, and couplings (check for leaks). 
8. Permanently attached connecting hose is tight and not leaking. 
9. Leakage current check; all readings should be under 300 microamps
(100V/115V) ,and under 500 microamps (230V). 
See Section (4-5).
OFF Normal Polarity ON Normal Polarity
OFF Reverse Polarity ON Reverse Polarity
10. Ground continuity check; readings should be under 0.2 ohms. Reference Section (4-6).
11. Check flow rate. Should be greater than or equal to 18 GPH (115Volt)
Should be greater than or equal to 15 GPH (100/230/240 Volt)
Reference Section (4-7). 
Actual Flow Rate
12. Check >1°C indicator. Reference Section (4-8). 
13. Check temperature accuracy. Reference Section (4-9). 
14. Check the high limit safety 44°C +/- 0.5°C. Reference Section (4-10). 
15. Check low water indicator. Reference Section (4-11). 
16. Check power fail indicator. Reference Section (4-12). 
17. Check tilt switch indicator. Reference Section (4-13). 
Signature of Inspector Date of Inspection
Figure 4-1 Micro-Temp
®
LT System – Maintenance Checklist