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MMP4-CAT(T4)-MX-2

26 Feb 2014

SECTION 6

Axle and Suspension

6-2

9. Continue to pump grease until clean grease is

extruded through the outer bearing.

10. Rotate wheel while pumping grease into fitting.

11. Clean old grease from around the bearing cap.

12. Install the rubber plug in the grease cap.

13. Repeat on the other wheel bearing.

Manual wheel bearing greasing is only a semi-
annual service point. Failure to perform annual
wheel bearing service and inspection may result
in damage to the axle, wheel bearings or MMP4 if
not preformed.

INSPECTION

1. Inspect axle for cracking, damage and security.

2. Inspect springs for worn eye bushings, bent,

loose or broken shackles, mounts and bolts,
sagging or broken leafs, loose or damaged U-
bolts.

3. Check for loose wheel bearings.

4. Inspect lug nuts to ensure all are present and

torque properly to 80 to 90 ft/lbs (110 to 125 Nm).

5. Inspect for wheel seal leakage.

6. Inspect tires for inflation to 80 psi (550 kpa),

cracking, uneven wear, tread and side wall
damage.

7. Inspect fender assembly for security and damage

REPAIR

1. Axle tube, replace as required.

2. Damaged springs or mounting hardware, replace

as required.

3. Worn spring eye bushings, loose spring bolts and

damaged or worn shackles, replace as required.

4. Fender damage, repair as required.

5. Tire for wear or damage, replace as required.

6. Wheel bearings:

a. Secure MMP4 with jack stands and wheel

chocks.

b. Jack up 1 tire and secure axle.
c. Remove tire and rim assembly.
d. Remove wheel bearing grease cap.
e. Remove cotter pin or bend clear the nut

locking tab.

Remove spindle nut by turning nut CCW.

g. Remove hub assembly.
h. Inspect hub for damaged threads, missing or

damaged studs. Replace as required.

Inspect grease seal for damage (e.g; tears,
cracks, leaks and distortion).

To remove grease seal; pry out of hub with a
long handled screwdriver.

k. Clean and inspect wheel bearings and

bearing races for corrosion, pitting, wear, heat
discoloration and free/smooth movement.
Replace as required.

Never spin the wheel bearing with
compressed air. The bearing may be
damaged, causing the bearing explode
causing severe personal injury or death.

Nut Locking Tab

Содержание MMP4

Страница 1: ...SPECIALTY HAULAGE SOLUTIONS FOR CONSTRUCTION AND MINING MEGA CORP 700 Osuna Rd N E Albuquerque NM 87113 1 800 345 8889 505 345 2661 Fax 505 345 6190 www megacorpinc com MEGA Corp Inc All Rights Reserv...

Страница 2: ...Section 4 Basic Hydraulics System 4 1 Section 5 Water Pump Assembly 5 1 Section 6 Axle and Suspension 6 1 Section 7 Frame and Booms 7 1 Section 8 Scheduled Inspections 8 1 Section 9 Special Inspectio...

Страница 3: ...MMP4 CAT T4 MX 2 26 Feb 2014 TABLE OF CONTENTS B Blank...

Страница 4: ...s are performed Some procedures take place with heavy components and at moderate heights ensure proper safety procedures are maintained when performing these actions Failure to use and maintain proper...

Страница 5: ...rsh chemicals could loosen the adhesive that secures the safety messages Loose adhesive will allow the safety messages to detach Replace any safety message that is damaged or missing If a safety messa...

Страница 6: ...pply lines contain oil under high pressure Improper removal and repair procedures could cause severe injury To remove or repair instructions in the Maintenance Manual must be followed ABBREVIATIONS cc...

Страница 7: ...NGINE 5 LANDING GEAR QTY 3 6 TIRE AND RIM ASSEMBLY 7 FENDER 8 50 GAL DIESEL FUEL TANK 9 DISCHARGE BOOM LIFT CYLINDER TOP VIEW SIDE VIEW 2 4 10 11 10 TAIL LIGHTS 11 HYDRAULIC OIL TANK 12 INLET DEBRIS S...

Страница 8: ...iler tires a fold away hitch with safety chains a vacuum break with an anti siphon discharge sock on the discharge boom 23 gallon 87 liter hydraulic oil tank filled with Chevron Clarity AW 46 hydrauli...

Страница 9: ...suspected area 2 Prep surface to be welded weld over leak 3 Prime and paint over weld 4 Tighten or replace damaged or leaking component Lighting Repair as required to maintain DOT compliance Missing p...

Страница 10: ...ate potential unsafe operating conditions and to show fault in individual systems Hand throttle to adjust the engine operating RPM s Remote Engine Stop Button INSPECTION 1 Inspect control box and cabl...

Страница 11: ...6 Install engine control plate in control box 7 Apply power to engine control and perform functional check of newly installed tachometer THROTTLE CONTROL REPLACEMENT 1 Remove power to the engine and...

Страница 12: ...ontact the HIGH idle stop 19 Place throttle control cable in the low idle position 20 Apply power to engine control box and engine 21 Ensure hydraulic ball valve at hydraulic tank is OPEN 22 Perform f...

Страница 13: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 3 Engine Control System 3 4 Blank...

Страница 14: ...rotect against over pressurization of the hydraulic system The return hydraulic oil is passed through a hydraulic oil filter oil cooler and then a diffuser mounted inside of the hydraulic oil tank HYD...

Страница 15: ...aulic control valve where the control valve directs the oil flow to the selected components INSPECTION Inspect hydraulic pump adapter and hosing for vibrations unusual noises security damage and leaks...

Страница 16: ...mage and leaks 4 Check pressure regulator for proper relief pressure 2 800 psi 19 300 kpa security and leaks REPAIR Hydraulic Control Valve 1 Repair adjust or replace as required 2 To set hydraulic re...

Страница 17: ...too fast turn knob CW 1 16th of a turn at a time if the speed is too slow turn knob CCW 1 16th of a turn at a time until desired speed is achieved 8 seconds to full rise f Tighten jamb nut g Reinstall...

Страница 18: ...eck hydraulic filter assembly hose fitting adapters for security and leaks REPAIR Repair adjust or replace as required HYDRAULIC OIL COOLER The hydraulic oil cooler is attached to the front of the eng...

Страница 19: ...or that drives the impeller of the water pump at the rated speed The hydraulic cylinder hoses require a smaller volume of fluid and do not require as large of a hose The makeup oil requirement for the...

Страница 20: ...l valve at 1 900 2 800 PSI 13 000 19 300 kpa and flow rates up to 35 GPM 135 lpm for operation The hydraulic motor is coupled directly to the water pump shaft and rotates in a clockwise CW direction a...

Страница 21: ...recommended 8 Remove Item 40 on Figure 1 to gain access to the bearing housing reservoir fill plug Item 34 in Figure 1 and item 23 on the discharge bowl with the water pump in a vertical position The...

Страница 22: ...liquid pipe sealant to seal and reinstall pipe plugs in bearing housings and water pump housings The use of a high strength thread sealant may make it difficult to remove plugs at the next service in...

Страница 23: ...rew 15 303910 14 Pipe Plug 16 303910 15 Strainer Assembly 17 303910 16 Snap Ring 18 303910 17 Thrust Collar 19 303910 18 Key 20 303910 19 Impeller 21 303910 20 Lower Seal 22 303910 21 Discharge Bowl A...

Страница 24: ...e pipe Item 2 11 Remove discharge pipe assembly Remove 4 bolts Item 33 holding hydraulic motor to bearing housing Item 7 12 Remove and inspect hydraulic motor 13 Inspect motor O Ring Item 31 and repla...

Страница 25: ...may result in seal bearing or shaft damage The following is the required filling procedure for the bearing reservoirs when the pump is in a vertical position resting on the inlet end 3 Fill suction b...

Страница 26: ...e water pump control ensure proper rotation of water pump and no leaks are present Motor rotation is counter clockwise looking from discharge end of pump 15 Shut unit off and recheck hydraulic fluid l...

Страница 27: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 5 Water Pump Assembly 5 8 Blank...

Страница 28: ...capacity is used to secure the axle prior to removing the tire assembly Failure to properly lift and secure the MMP4 properly may result in an unstable load over loading of the jack or damaging an MM...

Страница 29: ...tread and side wall damage 7 Inspect fender assembly for security and damage REPAIR 1 Axle tube replace as required 2 Damaged springs or mounting hardware replace as required 3 Worn spring eye bushin...

Страница 30: ...t snug 11 Install and secure cotter pin or nut locking tab 12 Install wheel bearing grease cap 13 Install tire and rim assembly 14 Tighten lug nut using a cross tightening sequence to 15 to 20 ft lbs...

Страница 31: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 6 Axle and Suspension 6 4 Blank...

Страница 32: ...t and discharge booms safety chain lock anchors hydraulic cylinder mounts suspension mounts mounting structures for the boom pivot and hydraulic control valve mounting fenders and lighting INSPECTION...

Страница 33: ...ge boom travel locks and mounts for security and damage 8 Inspect fenders for security and damage 9 If equipped Inspect lighting for security damage and function 10 Inspect boom mounting pivot point t...

Страница 34: ...off valve for security damage and leaks 12 Inspect inlet boom travel locks and mounting for lubrication security damage and serviceability 13 Inspect hinge pins flanges gaskets for lubrication securi...

Страница 35: ...ety chain locks for security damage and missing parts REPAIR 1 Replace damaged or missing parts as required 2 If frame damage is noted or you have a question about the MMP4 contact The MEGA Corp Produ...

Страница 36: ...or security damage inflation 80 psi or 550 kpa and missing parts Repair as required X 4 Service wheel bearings with grease X 5 Remove and repack wheel bearings X 6 Check travel locking components for...

Страница 37: ...eaks Repair as required X 4 Check hydraulic oil cooler for security damage and leaks Repair as required X 5 Check hydraulic hosing for security damage and leaks Repair as required X 6 Check hydraulic...

Страница 38: ...dures Use SEBU8312 02 for engine maintenance requirements Follow and perform all required service procedures operations conditions and schedules X 2 Check and ensure all engine control functions are i...

Страница 39: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 8 Scheduled Inspections 8 4 Blank...

Страница 40: ...ect battery cables from battery 11 Service all engine systems per CAT C2 2T Diesel engine service manual SEBU8312 02 12 If possible shelter entire unit from the elements REMOVING 1 Remove all covers a...

Страница 41: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 9 Special Inspections 9 2 Blank...

Страница 42: ...66 or visit our website at www megacorpinc com for more detailed contact information A AXIAL WATER PUMP GROUP 303910 PART DESCRIPTION PART NO QTY 1 Gasket 12 inch 304174 2 2 Grommet 303910 03 2 3 Thru...

Страница 43: ...AND SUSPENSION GROUP PART DESCRIPTION PART NO QTY 1 Wheel and Tire Assembly 303933 1 2 Hitch pin 1 inch 303935 2 3 Chain 3 8 inch GR 70 2 4 ft 038453 13 1 4 Shackle 3 8 inch 355020 2 5 Bearing Wheel...

Страница 44: ...used in conjunction with previous section information to successfully produce a fully operational MMP4 system If your system is not covered in this manual you are having difficulties with the installa...

Страница 45: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 11 Appendix A MMP4 Build Drawings 11 B Blank...

Страница 46: ...APPENDIX A MMP4 Build Drawings MMP4 CAT C22T TIER 4 11 1...

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Страница 66: ...APPENDIX A MMP4 Build Drawings MMP4 CAT C22T TIER 4 11 21...

Страница 67: ...d CAT C2 2T engine operation service maintenance and troubleshooting If your system is not covered in this manual you are having difficulties with the installation or need additional information or as...

Страница 68: ...MMP4 CAT T4 MX 2 26 Feb 2014 SECTION 12 Appendix B Hydraulic Pump and Engine Control 12 B Blank...

Страница 69: ...APPENDIX B Hydraulic pump and Engine Control MMP4 CAT C22T TIER 4 12 1...

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