SkyTrak 3606 Service Manual - Manual (Page 180)

Section 8B
8B-10
16. Remove the oil cooler (Fig. 8B–6).
Figure 8B–6. Cummins oil cooler hose routings.
17. Remove, inspect and replace the seal bulb (item 44,
Fig. 8B–4), seal bulb moulding (45), and foam baffles
(47) as required.
Radiator and Oil Cooler Installation
1. Install the seal bulb (item 1, Fig. 8B–4), seal bulb
moulding (45), and foam baffles (47) as required.
2. Position the oil cooler (48) within the radiator
assembly baffle (46).
3. Install the six 1/4-20 x 1-1/2" hex-head capscrews
(82, Fig. 8B–4), 1 /4" lockwashers (81), 1/4" flat wide
washers (80) and well nuts (79) securing the radiator
baffle assembly (46) to the oil cooler (48). Torque to 9
lb/ft (12 Nm).
4. At the bottom of the hydraulic system oil cooler (Fig.
8B–6), install a new flat-faced O-ring seal in the
elbow and secure the hose to the cooler. Use a back-
up wrench and torque to 155-165 lb/ft (210-224 Nm).
5. Secure the 3/4" I.D. x 28" hose (Fig. 8B–6) to the oil
cooler.
6. Carefully place the radiator into position at the oil
cooler. As required, place two foam baffles (item 4,
Fig. 8B–4) between the radiator and the oil cooler.
7. At the radiator sides, install the 3/8 x 1-1/2 x 5/16-18
hex-socket head shoulder bolts (55), spacers (53), 3/
8" rebound washers (50), radiator mount bushings
(52), radiator mount rings (49), and 5/16-18 hex-lock
elastic nuts (51) securing the radiator at its side
mounting tabs to the radiator brackets (54 and 78).
8. Working from beneath the radiator, install two 3/8-16
hex-lock nuts (58), 3/8" rebound washers (50) and
rubber mounts (61) secured to the welded studs on
the bottom of the radiator. Torque to 31 lb/ft (42 Nm).
9. Working below the radiator, install two 5/16-18 x 3/4"
Grade 5 hex-head capscrews (75), 5/16"
lockwashers (74) and 5/16" narrow flat washers (73)
securing the radiator at the lower mounting tabs to
the radiator shroud (62). Torque to 18 lb/ft (24 Nm).
10. Working above the radiator, install two 5/16-18 x 3/4"
Grade 5 hex-head capscrews (75), 5/16"
lockwashers (74) and 5/16" narrow flat washers (73)
securing the radiator at the upper mounting tabs to
the radiator shroud (62). The radiator shroud
contains 5/16" weld nuts that retain the capscrews.
Torque to 18 lb/ft (24 Nm).
11. Uncap and connect the transmission inlet and outlet
hoses (Fig. 8B–5).
12. Install the fan (item 3, Fig. 8B–1) on the water pump
pulley on the front of the engine. Secure with four
M10-1,5 x 90 mm hex-head capscrews (4) and M10
lockwashers (5). Torque to 37 lb/ft (50 Nm). Install the
fan belt.
13. Install clamps (63 and 68, Fig. 8B–4) on the radiator
input (upper) hose (70). Work the hose onto both the
engine and then the radiator. Tighten the clamps.
14. Install clamps (63 and 68) on the radiator return
(lower) hose (69). Work the hose onto both the
engine and then the radiator. Tighten the clamps.
15. Fill the cooling system. Run the engine to operating
temperature. Visually check for leaks with the engine
running. Check the coolant level in the overflow bottle
and fill, or drain, as necessary.
8B.6 CUMMINS ENGINE ELECTRICAL
SYSTEM
The Cummins engine electrical system, including the
starter, alternator and primary wiring, is described in
Section 10 Electrical System.
8B.7 CUMMINS ENGINE FUEL SYSTEM
The Cummins engine fuel system includes a fuel tank
(item 24, Fig. 8B–7), fuel level sender (9) and dash panel
gauge, fuel strainer (5), fuel lift pump (ref.), fuel filter (1),
and fuel supply and return lines.
The threaded fuel filler (17) has a keyed fuel cap (19) and
permits entry of diesel fuel into the tank.
The fuel level sender (9) and dash panel gauge are
described in Section 10 Electrical System.
A fuel supply hose (6) carries fuel from the tank to the
engine lift pump (ref.) and then under pressure to the fuel
filter (1). Filtered fuel is directed to the fuel injection pump
and to the individual fuel injectors. Surplus fuel at the fuel
injector pump is returned to the tank via the fuel return
hose (30).
SS1150
Oil cooler
3/4" I.D. x 28" hose
Reservoir
O-Ring
90° Elbow
Model 3606 • Origin 10/99