Regional Haul Model Operator's Manual - Peterbilt Motors Company

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TRANSMISSION AND CLUTCH PREVENTIVE MAINTENANCE Table 9 Transmission Lubrication — Manual transmissions MODEL RECOMMENDED LUBRICANT (See Note) AMBIENT TEMPERATURE RANGE DEG. C DEG. F VISCOSITY (SAE) Eaton-Fuller HD engine oil: API CE or CF-4. Above -12 Above +10 50 Synthetic oil: Chevron RPM Synthetic Transmission Fluid, or equal, meeting MIL-L-2104D and Eaton PS-081 specifications. Above -40 Above -40 50 NOTE: Do not use multi-viscosity or EP (extreme pressure) gear oil (e.g., axle oils) in transmissions. Multi-viscosity or EP oils may damage components. Standard Transmission Oil Level NOTE: The vehicle must be parked on level ground. • Maintain the oil level and check it regularly. Oil should be up to bottom of filler plug hole. Clutch System Introduction Free pedal is the distance the clutch pedal moves by applying only slight pressure. During free pedal the release yoke in the transmission moves until its bearing pads contact the release bearing. This movement of the release yoke is called free travel. Thus, free pedal and free travel are directly related to each other. – 236 – Y53-6033 Regional Haul (R05/10)
PREVENTIVE MAINTENANCE As the clutch pedal is depressed further, with harder pressure, the release yoke moves the release bearing away from the engine. This causes the clutch plate to release from the driven disks in the clutch. This is called release travel. And finally, on 9-, 10-, and 11-speed transmissions, as the pedal is pushed to the last 1/2 to 1 inch of travel, the release bearing contacts and engages the clutch brake. This is called clutch brake squeeze. When the clutch wears, the release bearing gradually moves toward the engine, decreasing free pedal and free travel. When all free pedal and free travel are gone, the clutch requires adjustment. The clutch is adjusted by turning an adjustment ring that is built into the clutch. When the ring is turned, the release bearing moves back toward the transmission, restoring free pedal and clutch free travel. Under normal clutch wear this is the only adjustment needed. Do not attempt to change any other component. See the Maintenance Manual for details. Clutch Adjustment — Normal Wear Clutch pedal free travel is usually 1 3/4 in. to 2 in. (34 to 51 mm). This should be your guide for determining whether your truck needs clutch adjustment. Also, if it becomes TRANSMISSION AND CLUTCH increasingly difficult to shift into gears, or the truck creeps with the clutch pedal depressed, your clutch needs adjustment. See the Maintenance Manual for the proper adjustment procedures. Some vehicles have automatic clutch adjustment. If yours doesn't have this feature, adjustment will have to be done by a trained certified mechanic. Have the adjustment done before clutch pedal free travel is reduced to the minimum allowable 1/2 in. (13mm). Clutch Linkage The Regional Haul vehicle is equipped with a rod and lever mechanical clutch linkage. Lubricate each pivot point on the clutch linkage. Automatic Transmissions Service Intervals Check daily with engine idling. See Table 1, “Recommended Maintenance Intervals,” Page 150 for service intervals. Regional Haul (R05/10) Y53-6033 – 237 –
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Y53-6033-RegionalHual-FrontCover.ai
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Other Publications Order either of
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INTRODUCTION HOW TO USE THIS MANUAL
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INTRODUCTION Vehicle Safety Make su
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INTRODUCTION Shop Manuals If you do
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CAB AND FRAME ACCESS INTRODUCTION C
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CAB AND FRAME ACCESS CAB AND FRAME
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ENGINE ACCESS Put one hand on the h
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ENGINE ACCESS HOOD HOLD DOWNS AND T
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CONTROLS AND DISPLAYS INSTRUMENTS A
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CONTROLS AND DISPLAYS Warning Light
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CONTROLS AND DISPLAYS Warning Light
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CONTROLS AND DISPLAYS 9. Cruise Con
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CONTROLS AND DISPLAYS injury. 20. E
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CONTROLS AND DISPLAYS 32. Seat Belt
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CONTROLS AND DISPLAYS • MCS butto
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CONTROLS AND DISPLAYS - Trip Idle P
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CONTROLS AND DISPLAY STANDARD GAUGE
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CONTROLS AND DISPLAY Engine Oil Pre
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CONTROLS AND DISPLAY CAUTION: Keep
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CONTROLS AND DISPLAY OPTIONAL GAUGE
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CONTROLS AND DISPLAY operate the si
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CONTROLS AND DISPLAY OPTIONAL GAUGE
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CONTROLS AND DISPLAY See “Brake S
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CONTROLS AND DISPLAY DASH- AND DOOR
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CONTROLS AND DISPLAY ID and Clearan
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CONTROLS AND DISPLAY WARNING! Do no
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CONTROLS AND DISPLAY closed or open
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CONTROLS AND DISPLAY WARNING! Do no
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CONTROLS AND DISPLAY •If you are
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CONTROLS AND DISPLAY CIGARETTE LIGH
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CONTROLS AND DISPLAY SHIFT PATTERN
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CONTROLS AND DISPLAY NOTE: The map
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SEATS SAFETY RESTRAINT BELTS CHUGGE
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SEATS • Belts should fit snugly a
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SEATS Safety Restraint Tips NOTE: P
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SEATS Komfort-Lok® Latch Your Pete
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DRIVER'S CHECKLIST SAFE VEHICLE OPE
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DRIVER'S CHECKLIST GAWR: is the Gro
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DRIVER'S CHECKLIST 7. Steps and Han
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STARTING AND OPERATING THE VEHICLE
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PREVENTIVE MAINTENANCE • Disconne
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PREVENTIVE MAINTENANCE Maintenance
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PREVENTIVE MAINTENANCE MAINTENANCE
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PREVENTIVE MAINTENANCE Lubrication
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PREVENTIVE MAINTENANCE ENGINE MAINT
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PREVENTIVE MAINTENANCE • When dra
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PREVENTIVE MAINTENANCE ENGINE COOLI
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PREVENTIVE MAINTENANCE ENGINE COOLI
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PREVENTIVE MAINTENANCE 10. Operate
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PREVENTIVE MAINTENANCE BRAKE SYSTEM
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PREVENTIVE MAINTENANCE • Do not u
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Page 215 and 216: PREVENTIVE MAINTENANCE HEATER AND A
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Page 227 and 228: PREVENTIVE MAINTENANCE Bulb Replace
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Page 231 and 232: PREVENTIVE MAINTENANCE CAB MAINTENA
Page 233 and 234: PREVENTIVE MAINTENANCE Interior Tri
Page 235 and 236: PREVENTIVE MAINTENANCE Inspection G
Page 237 and 238: PREVENTIVE MAINTENANCE 7. Mounting
Page 239: PREVENTIVE MAINTENANCE TRANSMISSION
Page 243 and 244: PREVENTIVE MAINTENANCE Steering and
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Page 261 and 262: PREVENTIVE MAINTENANCE MAINTENANCE
Page 263 and 264: PREVENTIVE MAINTENANCE CONSUMER INF
Page 269 and 270: INDEX C lubrication 182 operation 1
Page 271 and 272: INDEX E vehicle inspection 81 with
Page 273 and 274: INDEX I Headllights 15 Heater and a
Page 275 and 276: INDEX R R Radio 16, 71 Rear axle 24
Page 277: INDEX V Underinflated tires 201 V V
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Regional Haul Model Operator's Manual - Peterbilt Motors Company

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