Radiator; Removal - Komatsu 830E Shop Manual

RADIATOR

Removal

1. Place battery disconnect switch in the "OFF"
position.
2. Release pressure from cooling system and drain
coolant.
3. Remove cover (7, Figure 3-2) protecting surge
tank (1).
FIGURE 3-2. GRILLE INSTALLATION
1. Surge Tank
2. Grille Structure
3. Coolant Drain Cock
4. Water Pump Inlet
4. Disconnect surge tank vent hoses and electrical
cable attached to coolant level probe (6).
Remove clamps (5) securing hoses and electri-
cal cables to fan shroud, tubes and support
rods.
C3-2
5. Clamp
6. Coolant Level Probe
7. Surge Tank Cover
Cooling System
FIGURE 3-3. RADIATOR PIPING AND MOUNTS
(Viewed from Below)
1. Radiator Assembly
2. Mount Hardware
5. Loosen clamps and remove coolant piping at
upper and lower radiator tanks. Refer to Figure
3-2 and 3-4).
6. Remove fan guard (2, Figure 3-4) from shroud:
a. Guard can be completely removed from the
truck by separating the halves and removing.
b. If complete removal is not necessary,
remove hardware attaching guard to shroud
and slide assembly toward the engine and
allow it to hang on the fan clutch.
7. Grille structure (2, Figure 3-2) removal:
a. Remove lower left grille section for access to
condenser hoses.
1.) Attach an air conditioner manifold gauge
set at the compressor. (Refer to "Heater/
Air Conditioning" in Section, "M", for
detailed information.)
2.) Completely evacuate the refrigerant from
the air conditioning system.
NOTE: Follow all local laws concerning the evac-
uation and handling of refrigerants.
3.) After system is evacuated, remove hoses
from condenser and cap all openings to
prevent contamination. Unclamp hoses
and remove from radiator area to prevent
interference when radiator is removed.
4.) Disconnect hoses and pressure switch at
receiver/drier located on fan shroud.
b. Remove lower right grille section and discon-
nect hoses from fuel cooler.
3. Low Temp Core Tubes
4. High Temp Core Tubes
C03027