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A L L E G R O
TIFFIN MOTORHOMES,
105 2
Street NW Red Bay, Alabama 35582 U.S.A.
nd
2020PowerGlide
Owner's Manual
WARNING: Breathing diesel engine exhaust exposes you to chemicals known to
the State of California to cause cancer and birth defects or other reproductive harm.
Always start and operate the engine in a well-ventilated area.
•
If in an enclosed area, vent the exhaust to the outside.
•
Do not modify or tamper with the exhaust system.
•
Do not idle the engine except as necessary.
•
For more information go to
R E D - 3 4 0
P O W E R G L I D E
INC.
www.P65warnings.ca.gov/diesel.
C H A S S I S
M A N U A L
®
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Table of Contents
Related Manuals for Tiffin Motorhomes PowerGlide 2020
Summary of Contents for Tiffin Motorhomes PowerGlide 2020
- Page 1 R E D - 3 4 0 P O W E R G L I D E C H A S S I S M A N U A L TIFFIN MOTORHOMES, INC. 105 2 Street NW Red Bay, Alabama 35582 U.S.A.
- Page 2 All items, materials, instructions, and guidance described in this manual are as accurate as possible at the time of printing. However, because of Tiffin Motorhomes’ ongoing and dedicated commitment to excellence, improvement of Tiffin motorhomes is a continuing process.
- Page 3 Allegro Red 340 Tiffin PowerGlide Chassis Customer Support 256-356-0261 Monday-Friday 6 a.m. - 4:30 p.m. CST If you should require chassis service, you should first contact your nearest Tiffin Powerglide ® Chassis service center. If for some reason this is not possible or if you would like to call the manufacturers direct, you can contact them at the following telephone numbers: TIFFIN POWERGLIDE CHASSIS...
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Page 4: Table Of Contents
A L L E G R O R E D - 3 4 0 P O W E R G L I D E C H A S S I S M A N U A L T able of Contents Engine Shutdown 4-14 Chapter 1... - Page 5 A L L E G R O R E D - 3 4 0 P O W E R G L I D E C H A S S I S M A N U A L Chapter 9 Warranty Chassis Warranties 10-2 Chapter 10...
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Page 6: Tire Care
T I R E C A R E Chapter TIRE CARE... -
Page 7: Tire Care
T I R E C A R E Tiffin Motorhomes: “Wherever you go…we go” TIRE CARE • What is the most important component of tire care? TIRE PRESSURE o Why? Improved Ride Improved Tire Wear Improved Road Handling ... -
Page 8: Correct Tire Pressure
T I R E C A R E Correct Tire Pressure • How to determine the correct pressure Weigh each wheel position Set tire pressure according to chart * This Chart Shows Cold Inflation Pressures 255/80 R22.5 LRG - XRV Load per Wheel-end 22.5 X 9.00”... - Page 9 T I R E C A R E To determine the correct air pressure for your tires, load your motor home as you would normally travel, including water and fuel. Go to a truck scale as found at most major truck stops and weigh each wheel position Michelin Recreational Vehicle independently, with driver and passenger(s) in the vehicle as described in the Tire Guide...
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Page 11: Allison Transmission Operation
A L L I S O N T R A N S M I S S I O N O P E R A T I O N Chapter Allison Transmission Operation... - Page 12 A L L I S O N T R A N S M I S S I O N O P E R A T I O N Operation The Allegro Red 340 with the Powerglide Chassis is equipped with an Allison 2500MH transmission. The display screen on the shift control pad will indicate the highest selected gear for the transmission.
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Page 13: Fluid Level Check
A L L I S O N T R A N S M I S S I O N O P E R A T I O N Mode Button The mode button is located on the keypad pushbutton shift selector. The mode button can be pressed at any time after engine start to activate the alternate shift schedule. - Page 14 A L L I S O N T R A N S M I S S I O N O P E R A T I O N...
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Page 16: Brake System
B R A K E S Y S T E M Chapter Brake System... - Page 17 B R A K E S Y S T E M Brake System Figure 3-1: Rear Brakes • Front brakes are air applied disc • Rear brakes (Figure 3-1) double as parking brake Park brakes are spring applied – air released Two large drum brakes Park brake remains applied even if air pressure is lost •...
- Page 18 B R A K E S Y S T E M NOTE: The rear brakes have dual chambers – one for the service brakes and one for the park brake. The service brakes are air applied and spring released. The park brake is spring applied and air released. The brake system is equipped with automatic slack adjusters that avoid the need to manually adjust your brakes.
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Page 19: Compressed Air System
B R A K E S Y S T E M Compressed Air System... - Page 20 B R A K E S Y S T E M...
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Page 21: Air Dryer
B R A K E S Y S T E M Compressed Air System The compressed air system is comprised of multi-air storage tanks. The primary tank stores and supplies air for the rear brakes, the secondary tank stores and supplies air for the front brakes. When air is compressed it becomes hot. -
Page 22: Engine Brake
B R A K E S Y S T E M Engine Brake Exhaust Brakes cannot be used on ISB engines with common rail fuel systems. The variable geometry turbocharger (VGT) takes the place of the exhaust brake and requires no maintenance. The VGT works in conjunction with the engine and transmission to provide an integrated braking system used to help slow the vehicle. -
Page 24: Cummins Engine
C U M M I N S E N G I N E S Chapter Cummins ISB Engine ________________________________________________________________________________________________________________________ Engine Model Advertised HP (kW) @ RPM Peak Torque LB-FT (N•M) @ RPM ISB6.7 340 340 (254) @ 2600 700 (949) @ 1600... -
Page 25: Epa Mandates
Nitrous Oxides (NOx) – 0.2 g/bhp-hr Particulate Matter (PM)- .01 g/bhp-hr To meet EPA guidelines, diesel engines installed in Tiffin Motorhomes PowerGlide chassis for domicile in Canada and the USA use an after treatment system (ATS) with a diesel particulate filter (DPF)to reduce particulate matter, and selective catalytic reduction (SCR) technology to reduce NOx downstream of the engine. -
Page 26: Ats Warning Lamps
C U M M I N S E N G I N E S gas reacts with the NOx in the exhaust to produce harmless nitrogen (N ) and water vapor (H O), which then exits out of the tailpipe. ATS Warning Lamps Warning lamps in the driver’s message center alert you of situations with the after-treatment system. -
Page 27: Aftertreatment Operation
C U M M I N S E N G I N E S Aftertreatment Operation Diesel Particulate Filter Soot is composed of the partially burned particles of fuel that occur during normal engine operation (black smoke). Ash is composed of the partially burned particles of engine oil that occur during normal engine operation. Over time, both soot and ash accumulate in the DPF and must be removed. - Page 28 C U M M I N S E N G I N E S Passive regeneration typically occurs when the vehicle is driven at normal highway speeds and/or under heavy loads. Active Regeneration Active regeneration occurs when the exhaust temperatures are not naturally high enough to oxidize the soot in the DPF faster than it’s collected.
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Page 29: Engine Indicator Lamps
C U M M I N S E N G I N E S After approximately four hours of engine idle operation, the engine speed will increase to around 1100 RPM, and remain at this speed for 10 minutes. During this time the ATS is warmed up enough to evaporate any water that has condensed in the system. - Page 30 C U M M I N S E N G I N E S For engines with the Engine Protection shutdown feature enabled, if the STOP ENGINE lamp begins to flash, the engine will automatically shut down after 30 seconds. The flashing STOP engine lamp alerts the operator to the impending shut down.
- Page 31 C U M M I N S E N G I N E S A flashing DPF lamp combined with an illuminated CHECK ENGINE lamp indicates that the DPF needs be regenerated immediately. Engine power will be reduced automatically. When these lamps are illuminated together you should immediately seek service from a Cummins authorized repair location.
- Page 32 C U M M I N S E N G I N E S An illuminated DEF lamp indicates that the DEF level has fallen below the initial warning level. This can be corrected by filling the DEF tank with diesel exhaust fluid. NOTE: It is recommended that the DEF tank be filled completely full of diesel exhaust fluid in order to correct any fault conditions.
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Page 33: Engine Starting
C U M M I N S E N G I N E S Engine Starting Warning Do not use starting fluids with this engine. This engine is equipped with an intake air heater. Use of starting fluids could cause an explosion, fire, personal injury, severe damage to the engine, and property damage. -
Page 34: Cold-Weather Starting
C U M M I N S E N G I N E S Starting Set the parking brake. 1. Place the transmission in neutral. 2. Turn the key to the ON position. 3. Wait a minimum of 10 seconds. If the “Wait-to-Start” lamp is still illuminated after 10 seconds, continue to wait until the lamp is no longer illuminated. -
Page 35: Cruise Control
C U M M I N S E N G I N E S Warning Do not use the engine brake on wet, icy, or snow-covered roads. Using the engine brake could result in loss of vehicle control, possibly causing personal injury, death, or property damage. Cruise Control Warning Do not use the cruise control system when driving conditions do not permit maintaining a constant... -
Page 36: Engine Shutdown
C U M M I N S E N G I N E S Disengage the cruise control by depressing the service brake, or by switching the cruise on/off switch to the off position. Engine Shutdown 1. With the vehicle stopped, place the transmission in the Neutral (N) position, and set the parking brake using the parking brake control knob. - Page 37 C U M M I N S E N G I N E S 2. Use the button labeled “Next” (left side) to scroll down the menu 3. Stop when “Active Fault Codes” is highlighted 4. Press the button labeled “Select” (right side) 5.
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Page 39: Scheduled Maintenance
S C H E D U L E D M A I N T E N A N C E Chapter Scheduled Maintenance... - Page 40 S C H E D U L E D M A I N T E N A N C E Scheduled Maintenance SERVICE INTERVAL Annually Required Fluids, Lubricants, and Procedures (Miles x 1,000) Air System: Air Dryer Inspect for leaks and blockage of purge valve (8) Air Intake Screen Inspect for blockage Primary Air Tank Reservoir...
- Page 41 S C H E D U L E D M A I N T E N A N C E Annually Required Fluids, Lubricants, and Procedures SERVICE INTERVAL (Miles x 1,000) Engine Systems: Engine Oil Filter Replace engine oil filter per engine manual (1) Engine Oil Change engine oil per engine manual (1) Exhaust Muffler &...
- Page 42 S C H E D U L E D M A I N T E N A N C E Annually Required Fluids, Lubricants, and Procedures SERVICE INTERVAL (Miles x 1,000) Suspension & Axles: Automatic Slack Adjusters Lubricate W/NGLI #2 grease (1) Slack Adjuster Cam Shafts Lubricate W/NGLI #2 grease (1) Slack Adjuster Clevis Pins...
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Page 43: Fluids
S C H E D U L E D M A I N T E N A N C E Fluids Engine Oil The primary oil recommendation for the ISB engine is a high-quality SAE 15W-40 oil with API classification CJ-4 that meets CES-20081 standards. - Page 44 S C H E D U L E D M A I N T E N A N C E Engine Coolant (cont.) IMPORTANT! When refilling the cooling system follow these instructions: 1) Remove surge tank lid/ radiator cap. (located on the surge tank) 2) Fill radiator through the surge tank (5 GPM max) 3) Once coolant is visible and halfway up the sight glass on the surge tank, start and run engine at idle for one minute, then at high idle for an additional two minutes.
- Page 45 S C H E D U L E D M A I N T E N A N C E DEF freezes around 12°F. The DEF system on your vehicle is designed to accommodate this condition and does not require any intervention from the operator. NEVER add anything other than new or known good DEF to the tank.
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Page 46: Lubrication Points
S C H E D U L E D M A I N T E N A N C E Lubrication Points Drivers Side Front Lubrication Points: 1. Upper Height Control Sensor Linkage Connection 2. Lower Height Control Sensor Linkage Connection 3. - Page 47 S C H E D U L E D M A I N T E N A N C E Passenger Side Front Lubrication Points: 1. Upper Height Control Sensor Linkage Connection 2. Lower Height Control Sensor Linkage Connection 3. Upper Kingpin 4.
- Page 48 S C H E D U L E D M A I N T E N A N C E Rear Suspension Lubrication Points: Upper and Lower Height Control Sensor Linkage Connections 5-10...
- Page 49 S C H E D U L E D M A I N T E N A N C E Rear Axle Lubrication Points: 1. Rear Brake Camshaft Bracket 2. Automatic Slack Adjusters 5-11...
- Page 50 S C H E D U L E D M A I N T E N A N C E Main Driveshaft 1. Lubricate Each Universal Joint at Each Grease Fitting. 5-12...
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Page 51: Maintenance Parts
S C H E D U L E D M A I N T E N A N C E Maintenance Parts Primary Fuel Filter/Water Sep W/WIF sensor Cummins Filtration part # FS1098 NO Tiffin part # Secondary Fuel Filter Cummins Filtration part # FF63009 Tiffin part # 5059830 Engine Oil Filter... - Page 52 S C H E D U L E D M A I N T E N A N C E For assistance with your Tiffin PowerGlide Chassis Please contact one of the following chassis specialists at Tiffin Motorhomes, Inc. 256-356-8661 Service Greg Dees Billy Payne, extension 3862...
- Page 53 S C H E D U L E D M A I N T E N A N C E 5-15...
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Page 55: Pre-Trip Inspection
P R E - T R I P I N S P E C T I O N Chapter Pre-Trip Inspection... - Page 56 P R E - T R I P I N S P E C T I O N Pre-Trip Inspection • Check fluid levels & add as necessary • Check tire inflation pressure • Look for fluid leaks Before starting your motor home daily, a few things must be checked. By doing so, you ensure that a safe trip is in order and lessen your chances of experiencing difficulties while on the road.
- Page 57 P R E - T R I P I N S P E C T I O N After you have completed your inspection, you may now start your engine. Turn the key to the run position Never use ether or any other and wait for the wait to start light to turn off.
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Page 59: Instruments & Controls
I N S T R U M E N T S & C O N T R O L S Chapter Instruments & Controls... -
Page 60: Tiffin Instrument Panel
I N S T R U M E N T S & C O N T R O L S Tiffin Instrument Panel The Instrument Panel Assembly (IPA) of the Tiffin Allegro Breeze is equipped with Medallion Instrumentation Systems’ Graphical Data Interface Gauge (GDIG). This section briefly describes and illustrates the system. 1. - Page 61 I N S T R U M E N T S & C O N T R O L S NAME GRAPHIC COLOR CONTROL SEAT BELT 30 SEC ON SOLID LOW FUEL AMBER CRUISE GREEN ON SOLID WATER IN FUEL AMBER ON SOLID ON SOLID...
- Page 62 I N S T R U M E N T S & C O N T R O L S ANTILOCK BRAKE SYSTEM LOW VOLTAGE LOW AIR WAIT TO START LEFT TURN RIGHT TURN HIGH BEAM JACKS DOWN DPF STATUS HIGH EXHAUST TEMP OIL PRESSURE HIGH COOLANT TEMP...
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Page 63: Driver's Information Center
I N S T R U M E N T S & C O N T R O L S Figure 7-3: Warning lamp descriptions Driver’s Information Center The speedometer includes a Graphical Drivers Information Center. The functions of the Driver’s Information Center can be broken down into four broad categories: 1. - Page 64 I N S T R U M E N T S & C O N T R O L S o SHOWER DOOR LOCKED o ROOF VENTS CLOSED o AWINING ARMS LOCKED o COUNTERTOP CLEAR o ALL DOORS LOCKED o DRAWERS LATCHED o APPLIANCES SECURED o SLIDES IN AND SECURED o WINDOWS CLOSED...
- Page 65 ANIMATION menu item is highlighted shall toggle the LCD Animation State from ON to OFF or vice versa. In the ON state, a TIFFIN MOTORHOMES Splash Screen shall be displayed when the system is starting up and each time the operator scrolls between Drivers Information Screens.
- Page 66 I N S T R U M E N T S & C O N T R O L S Backlight Brightness setting as a percentage of maximum brightness. Pressing the Left Display Button (DEC) decreases the display brightness and pressing the Right Display Button (INC) increases the display brightness.
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Page 67: Trip Reset And Average Fuel Economy
I N S T R U M E N T S & C O N T R O L S revision level and date of the firmware installed in DIG. Pressing either Display Button returns to the SETUP Menu Screen o RESTORE DEFAULTS: Pressing the Right Display Button (SELECT) while the RESTORE DEFAULTS menu item is highlighted causes all user selections to revert to the factory default conditions of:... -
Page 69: Air Supply
A I R S U P P L Y Chapter Air Supply... - Page 70 A I R S U P P L Y Air Supply Two auxiliary air sources are provided for customer use. One in the front electrical compartment, and one at the rear of the coach near the air tank drains. These air supply connections can supply up to 120psi, although the volume of air at these connections is low.
- Page 71 A I R S U P P L Y...
- Page 73 W A R R A N T Y Chapter Warranty...
- Page 74 W A R R A N T Y Warranty • Engine o Cummins ISB: 5 Years or 100,000 miles • Transmission o Allison 2500 MH Series: 5 Years or 200,000 miles • Chassis o 3 Years or 50,000 miles • Drive Train o 3 Years or 50,000 miles •...
- Page 75 W A R R A N T Y...
- Page 76 As a ‘thank you’ for your brand loyalty, Tiffin Motorhomes often sends a group of service technicians to the rallies to perform minor repairs and adjustments on your coach. A local dealer is present with a display of the newest and latest Tiffin coaches.