Related Manuals for ULPOWER UL390i
Summary of Contents for ULPOWER UL390i
- Page 1 UL39Oi UL39OiS UL39OiSA Maintenance Manual MM 390A01 Revision No: 2 Date: 2014-09-15...
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Page 3: Preface
ULPower reserves the right at any time to discontinue or change specifications, designs, features, models or equipment without incurring obligation. Engine serial number On all enquiries or spare parts orders, always indicate the engine serial number, as the manufacturer makes modifications to the engine for further development. -
Page 4: Safety Information
It is, however, important to understand that the warnings and cautions are not exhaustive. ULPower could not possibly know, evaluate and advise the user of all conceivable ways in which service might be done or if the possible hazardous consequences of each way. Consequently, ... -
Page 5: Table Of Contents
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Table of contents Preface ........................1 Remarks ....................... 1 Modifications ......................1 Engine serial number ....................1 Repeating symbols ....................1 Safety information ....................2 Table of contents .....................3 General ........................4 Authorized Personnel ....................4 Procedure Notes ..................... 4 Standard limited engine warranty &... -
Page 6: General
Requisite knowledge of the task through: Experience in performing the task Formal instruction from a ULPower authorized training facility or "on-the-job" instruction by a ULPower or authorized ULPower distributor representative. Suitable work environment to prevent contamination or damage to engine parts. -
Page 7: Standard Limited Engine Warranty & Warranty Conditions
ULPower's obligations under them will accessories required for warranty service. All parts be binding on ULPower unless made in writing by a replaced under warranty become the property of duly authorised representative of ULPower and ULPower. -
Page 8: Time Limits
The time limits for engine operation will be specified by the TBO (Time Before Overhaul). After reaching this time limit the engine should be shipped to an authorized ULPower overhaul facility. For an overhaul, the engine must be removed from the aircraft, be cleaned, preserved and all openings to be closed to prevent entering of contaminants. -
Page 9: Annual Inspection
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Annual inspection Perform a 100hr. check at intervals of 100 hours of operation or once every 12 months, whichever comes first. Every second year the 200 hour check should be performed. MM 390A01 Revision No: 2... -
Page 10: Scheduled Maintenance Checks
The Inspection Sheet/ Maintenance Schedule must be filled out at each maintenance event. For copies please contact a ULPower representative. All pages of the maintenance check list must be marked with the respective check (e.g. 100hr. -
Page 11: Inspection Sheet / Maintenance Schedule
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Inspection Sheet / Maintenance Schedule Identification AIRCRAFT Registration number _______________________________ Aircraft Make _______________________________ Aircraft model and S/N _______________________________ TSN (Time Since New) _______________________________ Propeller make _______________________________ Propeller model and S/N _______________________________ ENGINE Engine type... -
Page 12: Maintenance Schedule
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Maintenance Schedule Perform the following inspection tasks at the intervals shown. Some tasks are explained under chapter "Maintenance tasks" (see further). Legend: = do the task Blank = no task required Check (hr.) Inspection Items... - Page 13 ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Check (hr.) Inspection Items Signature 100 200 Oil level a) Remove drain plug from bottom of oil sump. Drain old oil and inspect for foreign particles. b) Replace copper sealing washers of drain plug and refit to oil sump.
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Page 14: Engine Back To Operation
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Check (hr.) Inspection Items Signature 100 200 Spark plug connectors a) Verify security of connectors on both spark plug and ignition coils. Check of compression a) Inspect compression by differential pressure method. Test pressure = ______ bar (psi) Pressure drop cyl.1 ________... -
Page 15: Maintenance Tasks
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Maintenance tasks General Note This chapter serves solely for supplement and detailed explanation of some points from the Maintenance Schedule. Rocker Tappet Clearance Unscrew all valve covers (1) with a 4mm Allen Key. Verify rocker tappets have had proper lubrication. -
Page 16: Cylinder Head Bolts Torque
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Cylinder head bolts torque As cylinder head bolts normally don't need re-torqueing, checking torque is only a precautionary safety measure. Therefore it is sufficient to only check the torque of the 4 cylinder head bolts which are easily accessible. - Page 17 ULPOWER Maintenance Manual UL390i UL390iS UL390iSA not set correctly. Adjust according to aircraft manual or manufacturer. Otherwise loosen throttle lever stop screws (3) with a 2.5mm Allan Key and move throttle lever stop (1) a few mm towards the right. Tighten throttle lever screws (3) and test engine idle. Idle rpm will probably be too low;...
- Page 18 ULPOWER Maintenance Manual UL390i UL390iS UL390iSA 5. Place the locking plate over the hex top of the bolt. Find out if the existing M6 hole in the locking plate correspond with the M6 hole in the flange. If not, move the ring for 60°...
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Page 19: Compression Test
ULPOWER Maintenance Manual UL390i UL390iS UL390iSA Leak test The best practice for testing the compression in a cylinder of an internal combustion engine, is the "differential compression" test. It requires the use of a tester consisting of two separate pressure gauges, a pressure regulator, a calibrated restrictor orifice, and an on/off valve (see schematic drawing). - Page 20 ULPOWER Maintenance Manual UL390i UL390iS UL390iSA You should now have a series of numbers something like this, depending on the condition of the engine: 76/80, 74/80, 73/80 and 75/80. These numbers, hopefully, will be fairly close to each other in magnitude. What are the limits? What constitutes a bad (too low) cylinder? It is generally accepted that a cylinder reading below 60/80 would require removal from service.