MI20-08C
Service Bulletin Details
Public Details for: MI20-08C
Storage and startup guidelines: periodically, circumstances arise requiring operators to temporarily park a coach in storage. Whether it is a few weeks or several months, sporadic out of service times or a full stop, prevost recommends foll
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MAINTENANCE INFORMATION DATE : SUBJECT : April 2020 MI20-08C SECTION : 00 GENERAL STORAGE AND STARTUP GUIDELINES Revision: C 565811 replaced by 565881 602086 replaced by 642086 06-03-2021 Revision: B Parts added to Suggested Material 08-10-2020 Revision: A 21516229 replaced by 23381562 20523393 replaced by 21454749 800383 removed 611471 replaced by 611360 70376808 replaced by 21036050 21396642 replaced by 20967831 06-10-2020 APPLICATION Model VIN ALL PREVOST VEHICLES & VOLVO 9700 DESCRIPTION Periodically, circumstances arise requiring operators to temporarily park a coach in storage. Whether it is a few weeks or several months, sporadic out of service times or a full stop, Prevost recommends following the guidelines in this document during times when: • The coach can be operated on a regular/weekly basis while in storage. • The coach will be in storage for an extended period without any operation. • The coach will return to service following an extended period of downtime. The following recommendations are general in nature for all coaches but should be modified to meet each customer requirements as needed. Writer: ELTABLE OF CONTENT SUGGESTED MATERIAL ........................................................................................................... 2 PROCEDURE ............................................................................................................................. 5 PROPER STORAGE FOR OPTIMAL STARTUP ..................................................................... 5 WHEN A COACH CAN BE OPERATED WEEKLY .................................................................. 6 START UP RECOMMENDATIONS ......................................................................................... 6 PARTS / WASTE DISPOSAL .................................................................................................... 15 SUGGESTED MATERIAL The material listed below may be required to complete the storage and return to service operations described in this document. Applicable to 2018 model year and newer vehicles Description Prevost H3 Prevost X3 Volvo 9700 Emergency Road kit 3200922 3200922 3176488 DEF 2 gallons container 685328 685328 685328 DEF refractometer 88890105 88890105 88890105 DEF pump filter 23381562 23381562 23381562 AGM batteries 21258363 21258363 21258363 Fan drive oil 75W90 680719 680719 ATF Dexron II D ATF Dexron III Belt Writer: EL 5060134 BX71 5060134 BX71 506080 506080 5060104 5060104 20995830 V-RIBBED 8PK 22424888 BELT 21248896 V-RIBBED MI20-08C Page 3 / 15 Description Belt tensioner Pulley Prevost H3 Prevost X3 Volvo 9700 506026 506026 506083 (Remy) 506083 (Remy) 506084 (Remy) 506084 (Remy) 450044 a/c 450044 a/c 21719386 510991 alternator 510991 alternator 22105565 510991 water pump 510991 water pump 21479276 20582550 water pump 20582550 water pump 20524754 water pump small small 22424879 a/c comp 22719941 water pump 22719941 water pump 21454749 alternator top top 450094 a/c comp 450094 a/c comp 012349 alternator 012349 alternator 680801 680801 680801 Bitzer A/C compressor 950509 Seal Evaporator motor 564216 Condenser motor 565881 950509 950509 564216 565881 21975075 21971351 A/C compressor oil Air dryer cartridge 642123 or 642188 (refer to Parts Manual) 642123 or 642188 (refer to Parts Manual) 21620181 filter kit Wiper blades assembly 800284 800284 21338424 Suspension air spring Front axle 630285 Front axle 630285 Front axle 70397048 Drive axle 630260 Drive axle 630260 Rear axle 21251607 Tag axle 630286 Tag axle 630286 Rear axle 70377052 Tag axle 22445751 Wheel oil seal 621916 621916 20531577 Wheel gasket 621640 621640 1076656 Unitized hubs Front I-beam axle Front I-beam axle Drive axle #21036050 Up to H-6188 #611360 Up to H-6188 #611360 From H-6189 #611360 From H-6189 #611360 Front & Tag axle #20967831 Front axle independent Front axle independent Up to H-6203 #611360 Up to H-6203 #611360 From H-6204 #611360 From H-6204 #611360 Writer: EL MI20-08C Page 4 / 15 Description Prevost H3 Prevost X3 Volvo 9700 Tag axle w/ ABS tone Tag axle w/ ABS tone ring #621816p ring #621816p Tag axle w/o ABS tone ring #621807 642186 21145623 642187 Caliper assembly LH front axle, LH tag axle & RH drive axle Brake chamber front 612354 axle LH 612353 Brake chamber front axle RH 642057 Brake chamber drive axle LH 642058 Brake chamber drive axle RH Brake chamber tag axle 642086 (prior k-0185) RH/LH Brake chamber tag axle 640016 (from k-0185) RH/LH Brake pads 642188 642187 21145624 612354 70330019 612353 70330019 642057 3177336 642058 3177337 642086 (prior j-6295) 70330020 642188 21024702 Diesel fuel stabilizer Use quality stabilizer Use quality stabilizer Caliper assembly RH front axle, RH tag axle & LH drive axle Tag axle w/o ABS tone ring #621807 642186 Use quality stabilizer 640016 (from j-6295) NOTE Material can be obtained through regular channels. Writer: EL MI20-08C Page 5 / 15 PROCEDURE DANGER Park vehicle safely, apply parking brake, stop the engine. Prior to working on the vehicle, set the ignition switch to the OFF position and trip the main circuit breakers equipped with a trip button. On Commuter type vehicles, set the battery master switch (master cut-out) to the OFF position. Lock out & Tag out (LOTO) must be performed during set-up, maintenance or repair activities. Refer to your local procedure for detailed information regarding the control of hazardous energy. PROPER STORAGE FOR OPTIMAL STARTUP When a coach is going to be parked or put into storage for an extended period, the following steps are recommended. 1. 2. 3. 4. 5. 6. 7. 8. 9. 11. 12. 10. 13. Writer: EL Change fluids depending on age and condition, check coolant strength with tester. Replace if sediment present. Drain all air tanks and accessory filter. Make sure that the roof escape hatches and emergency exit windows are closed and latched. Thoroughly clean the coach. Apply wax if possible. Install moisture control canisters if needed in humid environments. Plug areas where rodents can get in with steel wool, fiberglass insulation or dryer softener sheets. Inflate all tires to correct air pressure. Add diesel fuel stabilizer in the fuel tank. After parking the unit, before disconnecting all batteries, make sure they are fully charged. Drain the DEF tank if storing longer than six months. Close all drivers and passengers sunshades. Drain the lavatory waste and clean the tanks. Leave dump valve open for ventilation. Make sure that all external doors are closed and latched correctly. MI20-08C Page 6 / 15 WHEN A COACH CAN BE OPERATED WEEKLY 1. 4. 5. 2. 3. 6. 7. Keep on-board battery charger plugged in or if not possible, trip circuit breakers equipped with a trip button when vehicle is parked. Check the fluid levels. Start the coach for 30 minutes to circulate fluids and charge up the batteries. Turn on the passenger HVAC system, run for 15 minutes in heat mode and then 15 minutes in air conditioning mode. Verify starting temperature and end temperature. Move the unit to circulate transmission fluid, rotate tires, lubricate the wheel seals, and check the brakes. Road test to operating temperature and highway speed if circumstances allow. When parking, try to avoid flat spots on the tire. Make sure the tires will be in a different position. START UP RECOMMENDATIONS CAUTION Ensure all proper PPE (Personal Protective Equipment) is worn prior to working on the vehicle. IMPORTANT NOTE After a coach has been parked for an extended period, an inspection of the unit is required to make sure all items are intact and in good working order. If operating a vehicle with biodiesel fuel, sample tank before starting. Use the following guide to do a walk around inspection prior to start up. Writer: EL MI20-08C Page 7 / 15 Section #1 - Right Side of Coach Item Inspection Performed Initials 1 Visually inspect all baggage compartment doors and side windows for issues and condition Tech Comments Item Inspection Performed Initials 2 Open all baggage compartment doors to ensure proper operation and that they are dry inside Tech Comments Item Inspection Performed Initials 3 Open fuel filler access door and condenser compartment door to verify condition Item Inspection Performed 4 Inspect A/C components in this area for signs of leakage Item Inspection Performed 5 Check to make sure the emergency road kit is in place Tech Comments Initials Tech Comments Initials Tech Comments Section #2 - Battery and Right Side Engine Compartment Item Inspection Performed 6 Open the battery compartment and inspect for issues and condition Item Inspection Performed 7 Clean all cable lugs and wire terminals as needed Item Inspection Performed 8 Connect new or charged up batteries Item Inspection Performed 9 Check voltage at the equalizer to validate correct connections Initials Tech Comments Initials Tech Comments Initials Tech Comments Initials Tech Comments Writer: EL MI20-08C Page 8 / 15 Item Inspection Performed Initials 10 Visually check the right rear wheels and tires Tech Comments Section #3 - Engine Compartment Item Inspection Performed Initials 11 Check rear taillights, directional signals, clearance and identification lights for proper operation Tech Comments Item Inspection Performed Initials 12 Open the rear engine door, make sure door gas springs are okay and the safety latch is in place Tech Comments Item Inspection Performed Initials 13 Look under the coach and check for oil and coolant leaks Item Inspection Performed 14 Check the engine oil, coolant, transmission and power steering fluid levels Item Inspection Performed 15 Check the fan drive gear box oil level if applicable Item Inspection Performed 16 Inspect all belts for cracks and pulleys for wear Item Inspection Performed 17 Remove all belts, physically spin all pulleys and idlers, check for squeaks and feel for rough spots Tech Comments Initials Tech Comments Initials Tech Comments Initials Tech Comments Initials Tech Comments Item Inspection Performed Initials 18 Check the A/C compressor condition. Check oil level. Empty drain tube if applicable Tech Comments Writer: EL MI20-08C Page 9 / 15 Item Inspection Performed Initials 19 Check the alternators and cables for signs of issues Item Inspection Performed 20 Check the air intake piping for signs of issues Item Inspection Performed 21 Check the fan blade condition Tech Comments Initials Tech Comments Initials Tech Comments Section #4 - Left Side of Coach Item Inspection Performed Initials 22 Visually check wheels and tires Item Inspection Performed 23 Open the radiator door and inspect for issues Item Inspection Performed 24 Open DPF/SCR door if applicable and check for issues Item Inspection Performed 25 Open all baggage compartment doors to verify proper operation and that they are dry inside Tech Comments Initials Tech Comments Initials Tech Comments Initials Tech Comments Item Inspection Performed Initials 26 Open the evaporator door. Inspect for coolant leaks and make sure the ducting is in good condition and in place Tech Comments Item Inspection Performed 27 Inspect the blower motor, cables and fans Initials Tech Comments Writer: EL MI20-08C Page 10 / 15 Section #5 - Front Service and Electrical Compartment Item Inspection Performed Initials 28 Visually check left front wheel and tire Item Inspection Performed 29 Visually inspect the front junction box condition Item Inspection Performed 30 Visually inspect the front service compartment for issues. Check pull handle for bumper release Tech Comments Initials Tech Comments Initials Tech Comments Item Inspection Performed Initials 31 Check windshield washer fluid level Tech Comments Section #6 - Front of Coach Item Inspection performed Initials 32 Check front headlights, directional signals, identification and clearance lights for proper operation Tech comments Item Inspection performed 33 Open the front bumper and check the spare tire inflation and security Item Inspection performed 34 Inspect for coolant leaks Item Inspection performed 35 Check for light and body damage Item Inspection performed 36 Check wiper arms and wiper blades Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Writer: EL MI20-08C Page 11 / 15 Section #7 - Entrance Door and Right Front of the coach Item Inspection performed Initials 37 Visually check right front wheel and tire Item Inspection performed 38 Visually check the entrance door condition Item Inspection performed 39 Check operation of entrance door switches Item Inspection performed 40 Check operation of the emergency door release valve Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Section #8 - Interior of Coach Item Inspection performed Initials 41 Connect the on-board battery charger to a 120-V AC outlet to perform vehicle tests in this section Tech comments Item Inspection performed 42 Visually inspect interior condition for water entry Item Inspection performed 43 Check for signs of rodent activity and droppings Item Inspection performed 44 Check operation of every emergency exit windows and roof hatches Item Inspection performed 45 Turn on ignition and verify fuel level, DEF level and warning lights Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Writer: EL MI20-08C Page 12 / 15 Item Inspection performed Initials 46 Check for fault codes in the DID (Driver Information Display). Refer to the Operator’s Manual for details. Tech comments Item Inspection performed 47 Perform exterior light test in DID under vehicle tests Item Inspection performed 48 Perform brake leakage test in DID under vehicle tests Item Inspection performed 49 Perform electric motors test in DID under vehicle tests Item Inspection performed 50 Start and run the engine at idle speed Item Inspection performed 51 Monitor oil pressure and air pressure build up as well as alarms Item Inspection performed 52 Check for fluid and air leaks with engine running Item Inspection performed 53 Check and adjust exterior mirrors Item Inspection performed 54 Check entrance door operation Item Inspection performed 55 Check windshield wipers and washers condition and operation Item Inspection performed 56 Check interior lighting Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Writer: EL MI20-08C Page 13 / 15 Item Inspection performed Initials 57 Shift transmission into reverse and check back up alarm Item Inspection performed 58 Release brakes and move the vehicle to shop Tech comments Initials Tech comments Section #9 - Undercarriage of coach Item Inspection performed 59 Inspect condition of all suspension and steering components Item Inspection performed 60 Lubricate all steering linkages Item Inspection performed 61 Inspect all brakes and wheel seals Item Inspection performed 62 Service air system and replace air dryer if required Item Inspection performed 63 Check air springs condition and shocks for leaks Item Inspection performed 64 Perform a closer tire inspection Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Initials Tech comments Writer: EL MI20-08C Page 14 / 15 Additional Items once the unit has been moved into the shop Item Inspection performed Initials 65 Check DEF with refractometer, replace if test result isn’t good Item Inspection performed 66 Pressure test cooling system Item Inspection performed 67 Inspect and charge A/C system if needed. Check for proper operation and leaks Tech comments Initials Tech comments Initials Tech comments Item Inspection performed Initials 68 Clean or replace the passenger and driver HVAC air filters Item Inspection performed 69 Automatic Fire Suppression System. Make sure the control panel light is green and charge the extinguisher bottle if applicable Tech comments Initials Tech comments Item Inspection performed 70 Check wheelchair lift operation and sliding seat movement if applicable Item Inspection performed 71 Run the preheating system if applicable Item Inspection performed 72 Road test to check coach operation. Perform a final check for leaks Initials Tech comments Initials Tech comments Initials Tech comments Writer: EL MI20-08C Page 15 / 15 PARTS / WASTE DISPOSAL Discard according to applicable environmental regulations (Municipal/State[Prov.]/ Federal) Access all our Service Bulletins on http://techpub.prevostcar.com/en/ Or scan the QR-Code with your smart phone . Are you a vehicle owner? E-mail us at [email protected] and type “ADD” in the subject to receive warranty bulletins applicable to your vehicle(s) by e-mail. Writer: EL