Jacobsen 70528, Parts & Maintenance Manual

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MAINTENANCE 4
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4.16 RADIATOR & OIL COOLER __________________________________________________
Check coolant level daily. Radiator should be full and
recovery bottle should be up to the
cold mark.
If you have to add coolant more than once a month, or
add more than one quart at a time, have a Jacobsen
Dealer check the cooling system.
Drain and refill annually. Remove the radiator cap, open
the engine block drain and the radiator drain. Empty and
clean the recovery bottle.
Mix clean water with ethylene glycol based anti-freeze for
the coldest ambient temperature. Read and follow the
instructions on the anti-freeze container and engine
manual.
Keep screen, oil cooler and radiator air passages clean.
Use compressed air (30 psi maximum) to clean the fins.
Front Screen
Inspect front screen (B) daily and clean as required to
remove grass clippings, leaves and other debris that may
restrict air flow through oil cooler and radiator.
To remove screen, remove end cap (A) from left side of
oil cooler. Slide screen out from side and blow out from
back side using compressed air.
Oil Cooler and Radiator
Inspect oil cooler and radiator daily and clean as required
to maintain good air flow.
1. Remove screen (B) from front of oil cooler.
2. Unfasten knobs (C) located on top of oil cooler
and remove plastic shield from front of oil cooler.
3. Release prop rod (D) at bottom of cooler and
position hydraulic line to the front of it so hose can
move freely. Swing cooler up and away from
radiator as shown
(E) . Insert prop rod into hole in
frame to hold oil cooler in its service position.
4. Use a blow gun to clean the radiator and oil cooler
fins.
5. After cleaning, swing cooler back in place in front of
radiator. Secure prop rod (D) down so it holds
hydraulic line running behind it in place.
6. Replace front screen and shields, and install knobs
on top of oil cooler to secure assembly in place.
Figure 4F
WARNING
To prevent serious bodily injury from hot coolant or
steam blow-out, never attempt to remove the radiator
cap while the engine is running. Stop the engine and
wait until it is cool. Even then, use extreme care when
removing the cap.
CAUTION
Do not pour cold water into a hot radiator. Do not operate
engine without a proper coolant mixture. Install cap and
tighten securely.
!
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A
B
C
D
E
F
HR008
HR022