[215 Ld] Coolant Conditioner Element - Mack E7 Service Manual

5-101.bk Page 7 Friday, March 17, 2006 11:05 AM
[215 LD] COOLANT
CONDITIONER ELEMENT
Refer to Figure 4-7.
1. Cut the plastic tie wrap (1) securing coolant
conditioner supply tube (2) to cylinder head
manifold overflow line.
2. Disconnect fittings (3) from both ends of the
coolant conditioner supply tube. Remove
tube (2).
1
3
Figure 4-7 — Coolant Conditioner Supply Tube Removal
1. Plastic tie wrap
2. Coolant conditioner
supply tube
200 ENGINE DISASSEMBLY
2
3
200249a
3. Fittings
Refer to Figure 4-8.
3. Place a suitable container below the coolant
filter area to catch any spilled coolant.
4. Using a suitable filter wrench (J 29927 or
equivalent), remove the coolant conditioner
filter element (13). Discard element.
5. Remove coolant conditioner head assembly
(2) from thermostat housing (5) and coolant
manifold (9) by removing mounting
capscrews (1).
6. Remove and discard O-ring (4).
7. Carefully remove and examine the check
valve assembly (3). Examine check valve
assembly by depressing the check ball. If it
resists movement and does not return to its
seat freely, the check valve assembly must
be replaced.
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