TM 10--3510--221--24
0266 00--4
THERMAL FLUID PUMP REPLACEMENT --
Continued
0266 00
INSTALLATION
1. Remove four screws (43), then remove cover (44) and gasket (45) from motor junction box (46) on new
thermal fluid pump (2).
2. Insert conduit (25) into motor junction box (46), then install insulating bushing (47) and conduit nut (48).
3. Connect wires at motor junction box (46) as tagged.
4. Reinstall cover (44) and gasket (45) onto motor junction box (46), then secure with four screws (43).
5. Position thermal fluid pump (2) on top of air box (4) ensuring back of pump mount (39) is inserted under two
screws (36), lock washers (37), and flat washers (38).
6. Install, but do not tighten two screws (40), lock washers (41), and flat washers (42) at front of pump mount
(39).
7. Insert new gasket (51) between outlet piping (52) and pump outlet flange (35). Install, but do not tighten four
screws (32), lock washers (33), and nuts (34).
8. Insert new gasket (49) between inlet piping (50) and pump inlet flange (31). Install, but do not tighten four
screws (28), lock washers (29), and nuts (30).
9. Tighten screws (36 and 40) to secure pump mount (39) to air box (4).
10. Tighten screws (28) and nuts (30) at pump inlet flange (31).
11. Tighten screws (32) and nuts (34) at pump outlet flange (35).
12. Insert wiring and conduit (25) into outlet body (22) then tighten conduit nut (27).
13. Connect wires at outlet body (22) as tagged.
14. Install cover (20) and gasket (21) onto outlet body (22), then secure with two screws (19).
15. Install clamp (24) and screw (23) to secure conduit (25) to heater shell (26).
16. Install handle (16) onto isolation valve (17), then secure with nut (18).
17. Install fuel filter (15) onto air box (4), then secure with two screws (12), lock washers (13), and nuts (14).
18. Connect fuel line (9) at elbows (10 and 11).
19. Connect fuel hoses (5 and 6) to quick--connect fittings (7 and 8).
20. Slide inlet screen (3) into air box (4) with direction arrow (53) pointing towards heater inlet.
21. Clean and reinstall thermal fluid pump strainer (WP 0170 00).
22. Use maintenance menu to test heating system (WP 0010 00). Verify no fuel or thermal fluid leaks exist.
END OF WORK PACKAGE
