Kohler LH630-775 Service Manual page 84

Figure 7-5. Coolant Levels on Reservoir.
NOTE: Do not operate the engine without coolant in
the system. Do not remove the radiator cap
when hot. Engine coolant is hot and under
pressure and can cause severe burns. To
prevent engine overheating and damage, do
not exceed more than 70% antifreeze in the
cooling system.
Draining Cooling System
1. Stop the engine and let the engine cool
sufficiently.
2. Slowly remove the radiator cap.
3. Loosen/remove the radiator drain plug in the
lower left rear corner or the bottom of the
radiator. See Figure 7-6.
Radiator Drain Plug
Radiator Drain Plug
Figure 7-6. Radiator Drain Plug.
Drain the coolant into a suitable container. Then
remove the coolant drain plugs if equipped from
the sides of the block and allow the remaining
coolant to drain. See Figure 7-7.
Coolant
Drain Plug
Figure 7-7. Engine Block Coolant Drain Plug
(Some Models).
On the starter side it may be preferable to first
remove the starter, or use a piece of cardboard
formed in a "V" to drain the coolant out over the
starter. After the coolant has drained, apply pipe
®
sealant with Teflon
equivalent) to the threads of the plugs and
reinstall the plugs. Torque the plugs to 13.5 N·m
(120 in. lb.). Always use brass plugs when
service is performed.
4. Unhook inboard catch and remove the overflow
reservoir from its mounting location. See Figure
7-8. Remove the cap and pour out the contents of
the reservoir. Wash or clean as required. Dispose
of all the old coolant properly, according to local
regulations.
Figure 7-8. Removing Reservoir.
Section 7
Cooling System
®
(Loctite 59241 or
7
7.3