Engine Cooling System; Checking Coolant Level; Cleaning Radiator Fins - Gehl RT175 Operator's Manual

5. Carefully remove the outer filter element (G,
Fig. 89). Do not remove inner filter element (H)
unless it will be replaced. If inner filter element
(H) will not be replaced, skip to step 10.
6. Clean dirt from inside the air filter housing (M).
IMPORTANT:
To prevent debris from entering the
engine intake manifold, do not remove inner filter
element (H) while cleaning the inside of the hous-
ing.
7. Remove the inner filter element (H).
8. Check the inside of the housing for damage.
9. Install a new inner filter element (H).
10. Install a new outer filter element (G).
11. Replace air filter cover (L). Latch clamps (J).
Make sure the cover is tightly secured and is
seated properly in the housing.

Engine Cooling System

Checking Coolant Level

Check the coolant level daily before starting the
machine, or after every ten hours of use.
1. Park the machine on a level surface.
2. Perform the "Mandatory Safety Shutdown
Procedure" on page 16.
3. Wait until the engine has cooled. See
"Maintenance and Service Safety Practices" on
page 21.
4. Open the engine cover "Engine Access" on
page 103.
5. Check the coolant level in the expansion
reservoir (R, Fig. 90). Coolant level must be
between the "FULL" (T) and "ADD" (S) marks
on the expansion reservoir. Add coolant to the
expansion reservoir as required.
IMPORTANT:
The coolant system is specifically
designed for coolant level top-off only through the
expansion reservoir. Do not add coolant directly to
the radiator.
Printed in U.S.A.
Fig. 90 – Coolant Expansion Reservoir
NOTE:
Use a low-silicate ethylene glycol-
based coolant, mixed with quality water and
supplemental coolant additives (SCAs) suitable
for heavy-duty diesel engines. See "Dimen-
sions" on page 32 and the engine operation
manual for additional information.

Cleaning Radiator Fins

The radiator fins can become blocked during use
which will lead to reduced cooling function and
engine overheating. Clean the radiator cooling fins
after every 250 hours or 6 months of operation,
whichever occurs first.
1. Perform the "Mandatory Safety Shutdown Pro-
cedure" on page 16.
2. Wait until the engine has cooled. See
"Maintenance and Service Safety Practices" on
page 21.
3. Open the engine cover "Engine Access" on
page 103.
4. Clean the radiator fins by blowing air/water
through the fins from the rear of the radiator,
toward the engine.
IMPORTANT:
Use caution! High pressure can
damage radiator fins.
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Maintenance
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