Davco FUEL PRO 382 Technical Manual page 17

T e c h n o l o g y , L L C
Electric
Pre-heater
12 VDC (two pin) 250 W
12 VDC (single pin) 250 W
12 VDC (single pin) 150 W
12 VDC (two pin) 150 W
24 VDC (two pin) 250 W
24 VDC (single pin) 250 W
24 VDC (single pin) 150 W
120 VAC 75 W
120 VAC 37 W
12 VDC Thermoswitch Test
Step 1: Disconnect the thermoswitch harness (see Figure
10)
Step 2: Connect the Ohm meter leads to the pins of the
thermoswitch
Note: This test requires the thermoswitch to be below 40°
F (Use one of the cooling sources listed under "Equipment
Needed" ) The resistance should be less than 0 1 Ohm
Step 3: Using one of the heat sources listed under "Equip-
ment Needed", raise the temperature above 60° F The
resistance should be more than 10M Ohms
DAVCO Technology, LLC
®
DIAGNOSTIC PROCEDURES
Resistance Range
Watts
in Ohms
0 6 to 0 8
0 6 to 0 8
0 8 to 1 1
0 8 to 1 1
2 to 2 5
1 8 to 2 3
3 6 to 4 1
173 TO 203
369 TO 411
Table 2
Figure 10
P. O. Box 487 Saline, MI 48176
TECHNICAL MANUAL
Step 4: Prime the unit by filling the clear cover with clean
diesel fuel until it reaches the top of the filter
Step 5: Install the vent cap Hand tighten only.
Step 6: Start the engine and run for one minute Slowly
open the vent cap and allow the fuel to drop to about one
inch above the collar Close the vent cap Hand tighten
only.
Call 800-328-2611
16
FUEL PRO
®
www.davco.com F1271 REV C
Updated 09/05/2012
382