TM-9-2350-311-34-1

HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS: HOWITZER, MEDIUM, SELF-PROPELLED, 155MM

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

SEPTEMBER 1994

TM-9-2350-311-34-1 - Page 117 of 352

TM 9-2350-311-34-1

10 Air cleaner blower motors should meet the following performance specifications:

(a) Rated voltage: 24 Vdc.

(b) Blower load current: 7.5 amps maximum at 73°F (23°C) ambient temperature.

(c) Blower load speed: 11,500 rpm 10% at 77° F (25°C) ambient temperature. For +10% voltage, maximum

speed change of +10. For -10% voltage, maximum speed change of -10%.

VOLTAGE*

MAXIMUM AMPS

CFM

INLET VACUUM GAGE READING

24

5.5

0 minutes

14.0-in. (35.6-cm) water minimum

24

6.5

40 minutes

8.0-in. (20.3-cm) water minimum

24

7.5

60 minutes

0.0-in. (0.0-mm) water minimum

* Performance data at 72 to 82°F (22 to 28°C) ambient temperature.

NOTE

Performance curve at 24 Vdc 25 ± 8°C ambient temperature. Amps line represents

maximum values. Speed, efficiency, and watts output curves are minimum values.

PERFORMANCE CHART

NOTE

FOLLOW-ON MAINTENANCE:

Refill engine coolant system (TM 9-2350-311-10

5-35