TM 5-5420-280-10
0025 00
OPERATION UNDER UNUSUAL CONDITIONS (Contd)
LAUNCH OR RETRIEVE IN EXTREME COLD (ARCTIC OPERATION) (Contd)
2. Refer to table 2, and open bypass valve as required. Refer to WP 0007 00.
3. Refer to table 3, and determine glow-plug preheat time as required.
4. Refer to table 4, and determine LPU engine warm-up time as required
Table 1. Lubrication Specifications.
Expected
Above +15 F
+40 F to -15 F
+40 F to -50 F
Temperatures
(-9 C)
(+4 C to -26 C)
(+4 C to -46 C)
Hydraulic System Oil
OE/HDO-30
OE/HDO-10
OEA
LPU Engine Oil
OE/HDO-15W-40
OE/HDO-5W-30
Table 2. Bypass Valve Operation.
Type of Oil Used in
Pallet Hydraulic
OE/HDO-30
OE/HDO-10
OEA
System
Temperature Range
Bypass Valve is
+5 F to +20 F
+15 F to -20 F
-15 F to -25.6 F
Opened Prior to
(-15 C to -7 C)
(-9 C to -29 C)
(-26 C to -32 C)
Starting LPU
Table 3. LPU Glow-plug Operation.
Above +40 F
+40 F to -15 F
-15 F to -25.6 F
Expected Temperature
(+4 C)
(+4 C to -26 C)
(-26 C to -32 C)
Glow-plug Preheat
None
1 Minute
2 Minutes
Time
Table 4. LPU Engine Warm-up Time.
Above +40 F
+40 F to -15 F
-15 F to -25.6 F
Expected Temperature
(+4 C)
(+4 C to -26 C)
(-26 C to -32 C)
Engine Warm-up Time
None
1 to 5 Minutes
5 Minutes
0025 00-3