TSB00073
TSB00073
TSB00073
SERVICE BULLETIN
BULLETIN NO: TSB00073 REV 1.0
RELEASE DATE: 1.29.2018
EFFECTIVITY
REASON
Existing hydraulic fan tubes may crack and leak in bend radius.
DESCRIPTION
COMPLIANCE
WARRANTY INFORMATION
A warranty claim may be filed for reimbursement of parts, labor and ground freight.
No expedited freight will be paid.
LABOR
PROCEDURE
TESTING
Operate unit until engine is up to normal operating temperature and fan is operating
correctly. Check for leaks and that tubes are correctly routed.
INSTRUCTIONS
DISASSEMBLY
1. Remove fuel tank, open seatbase and remove 4 screws securing rear cover. Set cover
and fuel tank aside.
2. Clean area around fittings to avoid contamination.
3. Position rags or shop towels to collect spilled oil.
4. Loosen both tube nuts at fan motor fittings, using backup wrench to avoid disturbing
fan motor fittings.
5. Loosen both tube nuts at manifold fittings.
6. Remove upper tube clamp and upper tube.
REASSEMBLY
1. Install replacement tubes with tube nuts hand tight. Note that lines cross, with lower
port on fan motor connecting to upper 90 fitting on manifold. This line will be
marked as P/N 188305.
2. Install tube clamps and tighten securely.
3. Tighten tube nuts, using backup wrench on motor fittings.
4. Tighten jam nuts on 90 fittings at manifold.
INSPECTION