Fuel Supply Module FSM Float Switch Service Recommendation
Contents
1. minute Turn the ignition key switch back to the OFF position The filling of the fuel system is complete Parts Required Part Number Float switch 880596524 Top seal fuel supply module FSM 26 880596502 FSM reference hose kit 32 880596A05 Repair Identification After the FSM float switch has been inspected and or replaced the FSM repair should be identified as follows e Use an awl to scribe a G into the FSM tank following the date code G Known good float switch 38765 a FSM date code b Scribe a G to indicate a known good float switch THE INFORMATION IN THIS DOCUMENT IS CONFIDENTIAL AND PROTECTED BY COPYRIGHT AND IS THE PROPERTY OF MERCURY MARINE This document is provided for the sole and exclusive use of the original recipient as prescribed by Mercury Marine and may not be distributed or copied digitally or otherwise without the prior written consent of Mercury Marine 2008 10 NOVEMBER 2008 2008 Mercury Marine Page 3 5 Fuel Supply Module FSM Float Switch Service Recommendation 135 150 175 Verado and 200 225 250 275 Verado e Place a green paint dot on the FSM wiring harness connector This identification marking should be easily seen with the top rear cowl removed a FSM wiring harness Verado L6 shown starboard rear Verado L4 port rear b Green paint mark Upgraded FSM float switch Dealer Parts Inventory Warranty USA customers Return any unused original packaged P N 88052. 96504 or P N 880596522 FSM float switches in your inventory using the Mercury Precision Parts UNDER 30 DAYS RETURN PROGRAM You may use the form on the back of any parts and accessory packing list Please note on the form that the return is part of Service Bulletin 2008 10 All returns must be sent freight prepaid to Mercury Marine Attn Return Goods W6250 20C Pioneer Road Fond du Lac WI 54936 Non USA customers Return any unused original packaged P N 880596504 or P N 880596522 FSM float switches in your inventory to the appropriate distribution center for credit Follow the normal return parts procedure Please make reference to Service Bulletin 2008 10 Mercury Marine will credit the dealer for the cost of parts and labor Complete a warranty claim listing e Outboard serial number e Qty 1 P N 880596524 FSM float switch e Qty 1 P N 26 880596502 FSM top seal e Qty 1 P N 32 880596A05 FSM reference hose kit Verado L6 e 1 7 hour labor first failed float switch and reference hose replacement includes CDS diagnostic time e Warranty flat rate code CF58 C189 and SBO2 e 1 0 hour labor each additional float switch and reference hose replacement e Warranty flat rate code CF58 and SBO2 e 0 4 hour labor FSM inspection only Page 4 5 2008 Mercury Marine NOVEMBER 2008 2008 10 Fuel Supply Module FSM Float Switch Service Recommendation 135 150 175 Verado and 200 225 250 275 Verado e Warranty flat rate cod
3. PFERCURY MARINER Service Bulletin Bulletin No 2008 10 Circulate to L Sales Manager L Accounting service Manager V Technician WM Parts Manager Fuel Supply Module FSM Float Switch Service Recommendation 135 150 175 Verado and 200 225 250 275 Verado Models Affected Models Covered Serial Number Or Year Model Year 2006 Gen 135 150 175 Verado L4 1B517158 and Below Model Year 2005 2006 Gen 200 225 250 275 Verado L6 4B517433 and Below Situation With the introduction of the Generation II Verado product Mercury Marine has implemented an improved float switch within the fuel supply module FSM The materials selected for the construction of this switch were chosen to ensure the integrity of the switch itself even when exposed to higher ethanol concentrations Currently this improved float switch is used as the only service replacement float switch for all Verado products When servicing a warrantable fuel related float switch issue on a multi outboard Verado boat package Mercury Marine will upgrade the FSM float switches on the remaining Verado outboards of the boat This service will be performed at no cost to the customer for the above identified models Part Identification FUEL SUPPLY MODULE FSM Prior to the removal disassembly of a functional fuel supply module determine that the FSM and or the float switch has not been previously replaced see FSM float switch replacement identification foll
4. e SB04 Verado L4 e 1 9 hour labor first failed float switch and reference hose replacement includes CDS diagnostic time e Warranty flat rate code CF58 C189 and SB02 e 1 2 hour labor each additional float switch and reference hose replacement e Warranty flat rate code CF58 and SBO2 or e 0 6 hour labor FSM inspection only e Warranty flat rate code SB06 all e Part code 786 e Failure code 00 US AND CANADA Complete and process the claim via MercNET or return a warranty claim form INTERNATIONAL Follow instructions issued by the Marine Power International office or by an authorized Marine Power Distributor THE INFORMATION IN THIS DOCUMENT IS CONFIDENTIAL AND PROTECTED BY COPYRIGHT AND IS THE PROPERTY OF MERCURY MARINE This document is provided for the sole and exclusive use of the original recipient as prescribed by Mercury Marine and may not be distributed or copied digitally or otherwise without the prior written consent of Mercury Marine 2008 10 NOVEMBER 2008 2008 Mercury Marine Page 5 5
5. nts with solvent and dry using low pressure compressed air Make sure all debris has been removed from FSM components prior to reassembly NOTE An improved FSM fuel pressure regulator reference hose which is more resistant to the adverse effects of ethanol is also being offered This new hose kit should be installed when replacing a FSM float switch in accordance with this service bulletin Please follow the installation instructions which are included with the FSM Reference Hose Kit 1 Remove and disassemble fuel supply module FSM 2 Drain clean and inspect all FSM components Replace the fuel pressure regulator reference hose as outlined in the installation instruction included with the FSM Reference Hose Kit Ensure that all debris has been removed Page 2 5 2008 Mercury Marine NOVEMBER 2008 2008 10 Fuel Supply Module FSM Float Switch Service Recommendation 135 150 175 Verado and 200 225 250 275 Verado 3 Install a new float switch and reassemble FSM using a new top seal for the cover 4 Reinstall FSM and reassemble outboard NOTE For initial start of a new engine or for an engine that ran out of fuel or was drained of fuel the fuel system should be filled as follows Turn the ignition key switch to the ON position for approximately one minute This operates the fuel lift pump Turn the ignition key switch back to the OFF position and then return the ignition key switch to the ON position again for an additional
6. owing With the identification of a previously replaced upgraded FSM and or float switch repair is not necessary and it will not be covered under this bulletin A FSM float switch upgrade replacement can be identified by e Agreen paint mark applied to the 6 pin FSM wiring harness connector The connector is located in the lower cowling of the outboard rear starboard for the Verado L6 and rear port for the Verado L4 A FSM assembly upgrade replacement can be identified by the part number printed on the FSM 2008 10 NOVEMBER 2008 2008 Mercury Marine Page 1 5 Fuel Supply Module FSM Float Switch Service Recommendation 135 150 175 Verado and 200 225 250 275 Verado Model FSM Part Number Printed on Part FSM Service Replacement Part Number Verado L4 880596 009 880596T08 Verado L6 880596 008 880596T06 5 N T 38755 a Upgraded FSM part number Verado L4 shown FLOAT SWITCH If the FSM is disassembled and the float switch has round holes the float switch has been replaced previously and is a good serviceable part No replacement is needed If the float switch does not have the round holes at the bottom end replace the switch 38757 a Round holes indicate the latest float switch Correction IMPORTANT Replace the fuel supply module FSM float switch following the procedures and cautions outlined in the appropriate Verado service manual IMPORTANT Thoroughly flush internal FSM tank compartment compone
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