TRUCK SERVICE MANUAL
ENGINE
4. To insure adequate protection have the coolant
Engines Now In Service With Package (Bag) Or
checked at each third element change or oftener.
Canister Type Chromate Corrosion Resistor
Elements
Engines Now In Service With Spin-On Type
Chromate Corrosion Resistor Element
1. Remove chromate package or canister, discard
1. Remove chromate element.
package element and plates or canister, retain spring for
2. Flush cooling system.
use with DCA service element.
3. Install pre-charge DCA element and operate
2. Flush cooling system.
engine to next "B" Check. See Table 18-4.
3. Pre-charge system with coolant and dri-charge,
Part No. 299050, (DCA 4), according to Table 18-5
4. Install DCA Service Element; replace DCA
using applicable
Service Element at each succeeding "B" Check, except
service canister.
under the following conditions'
4. Install DCA Service Element; replace DCA
Service Element at each succeeding "B" Check, except
a.
If make-up coolant must be added between
under the following conditions:
element changes use coolant from a pre-treated supply.
a. If make-up coolant must be added between
canister changes use coolant from a pre-treated supply.
b. Each time system is drained revert back to pre-
b. Each time system is drained revert back to Step
charge element.
3 instructions.
Table 18-5: Package or Canister D C A Water Filter
Corresponding
DCA
DCA
Obsolete
Pre-Charge
Service
Chromate
Canister
Canister
Canister or Bag
None *
299071
132732, 299001
None *
299074
171645, 299004
None*
(2)
299091
(2) 132732, 299021
*299050 (DCA4) Pre-Charge Containers To Be Used
With Service Elements Are:
Cooling
Service Service Service
Service
System
Element Element Element
Element
U.S. Gal. 299074
299071
299091 (2) 299091
0-5
1
5-9
2
1
9-13
3
2
1
13-17
0
3
2
17-21
0
4
3
1
21-25
0
5
4
2
25-28
0
0
5
3
28-32
0
0
6
4
32-36
0
0
7
5
36-40
0
0
8
6
40-45
0
0
0
7
45,49
0
0
0
8
49-53
0
0
0
9
53-57
0
0
0
10
57-61
0
0
0
11
61-65
0
0
0
12
65-69
0
0
0
13
69-73
0
0
0
14
73-79
0
0
0
15
435