Page 2 - NOTES
Page 3 - WARNING; SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR; IMPORTANT; TABLE OF CONTENTS
MHP3 User Manual ◄ 3 SERVICING: This manual contains safety, operation, and routine maintenance instructions. Stanley Hydraulic Tools recommends that servicing of hydraulic tools, other than routine maintenance, must be performed by an authorized and certified dealer. Please read the following warni...
Page 4 - LOCAL SAFETY REGULATIONS; DANGER; CAUTION; CAUTION; NOTICE; SAFETY SYMBOLS
4 MHP3 Manual Always observe safety symbols. They are included for your safety and for the protection of the tool. LOCAL SAFETY REGULATIONS Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and mainte- nance personnel. Safety symbols and signal wo...
Page 5 - SAFETY PRECAUTIONS
MHP3 User Manual 5 Tool operators and maintenance personnel must always comply with the safety precautions given in this manual and on the stickers and tags attached to the machine.These safety precautions are given for your safety. Re- view them carefully before operating the machine and before per...
Page 8 - HOSE SAFETY TAGS; HOSE TYPES
8 MHP3 Manual The rated working pressure of the hydraulic hose must be equal to or higher than the relief valve setting on the hy- draulic system. There are three types of hydraulic hose that meet this requirement and are authorized for use with Stanley Hydraulic Tools. They are: Certified non-condu...
Page 9 - Tool to Hydraulic Circuit Hose Recommendations; HOSE RECOMMENDATIONS
MHP3 User Manual 9 Oil Flow Hose Lengths Inside Diameter USE ( Press/Return) Min. W orking Pressure GPM LPM FEET METERS INCH MM PSI BAR Certified Non-Conductive Hose - Fiber Braid - for Utility Bucket T rucks 4-9 15-34 up to 10 up to 3 3/8 10 Both 2250 155 Conductive Hose - W ire Braid or Fiber Brai...
Page 10 - HTMA / EHTMA REQUIREMENTS
10 MHP3 Manual Flow Range Nominal Operating Pressure (at the power supply outlet) System relief valve setting (at the power supply outlet) Maximum back pressure (at tool end of the return hose) Measured at a max. fluid viscosity of: (at min. operating temperature) Temperature: Sufficient heat reject...
Page 11 - HOSE & FITTING CONNECTIONS
MHP3 User Manual 11 HTMA 1/2 INCH FEMALE QUICK DISCONNECT COUPLER (STANLEY P/N 58856 COUPLER BODY or STANLEY P/N 58718 COUPLER SET – NOSE & BODY) HTMA 1/2 INCH MALE QUICK DISCONNECT COUPLER (STANLEY P/N 58857 COUPLER NOSE OR STANLEY P/N 58718 COUPLER SET – NOSE & BODY) 1/2 INCH ID HOSE, 25 F...
Page 12 - PRE OPERATION PROCEDURES; OPERATION
12 ► MHP3 User Manual PRE OPERATION PROCEDURES PREPARATION FOR INITIAL USE Connect the battery cables to the battery. Other than connecting the battery, no special unpacking or assem- bly requirements prior to usage. Inspection to assure the equipment was not damaged in shipping, does not contain pa...
Page 13 - QUICK DISCONNECT COUPLERS
MHP3 User Manual ◄ 13 PRESSURE (OUT) RETURN (IN) The “Dual Circuit” control panel contains connections for two 5 GPM tool circuits. In addition, the two circuits may be combined into one 10 GPM tool circuit. 1. If using one 5 GPM tool circuit, select either the up - per or lower circuit and connect ...
Page 14 - DUAL CIRCUIT COMBINED FOR 10 GPM; COLD WEATHER STARTUP
14 ► MHP3 User Manual 5. Turn the ignition switch clockwise to begin cranking the engine. Use short starting cycles (15 seconds per minute) to prolong starter life. Extended crank- ing can damage the starter motor. 6. After the engine starts, allow it to warm-up for a few seconds before moving the c...
Page 15 - SLOPE OPERATION; TRAVELING FORWARD OR REVERSE; ADJUSTING THROTTLE FOR; FORWARD TRAVEL
MHP3 User Manual ◄ 15 SLOPE OPERATION WARNING DO NOT operate the machine on slopes exceeding 60 percent (30°) in the travel direction or across slopes exceeding 45 percent (24°). Depending on the load carried in the bed, it may be pref- erable to back up steep slopes.If traversing over large obstruc...
Page 17 - LOADING AND UNLOADING
MHP3 User Manual ◄ 17 TO TURN LEFT WHILE MOVING BACKWARD: Re - lease the left track control while pulling backward on the right track control. Resume pulling backward on the left track control to move backward in a straight line. TO TURN LEFT WHILE MOVING BACKWARD Release left control while holding ...
Page 18 - LIFTING; ROUTINE MAINTENANCE
18 ► MHP3 User Manual 2. Loading and unloading of any type of machine is dangerous. Never attempt to load or unload the machine without loading ramps or a loading dock. Loading ramps must be strong enough, have a low angle, and correct height. Load and unload the machine on a level surface. Never at...
Page 20 - TROUBLESHOOTING
20 ► MHP3 User Manual If symptoms of poor performance develop, the following chart can be used as a guide to correct the problem. When diagnosing faults in operation of the machine or tool, always check that the hydraulic power source is supplying the correct hydraulic flow and pressure as listed in...
Page 21 - FUEL TANK
MHP3 User Manual ◄ 21 Problem Cause Solution Machine cannot be moved using hydraulic controls Defective gear box(es) Have machine serviced One or more defective hydraulic component Have machine serviced Hydraulic fluid level low Check for correct level Pump coupling defective Have machine serviced R...
Page 22 - FILTERS; ACCESSORIES
22 ► MHP3 User Manual Engine .................................................................................................................................................. 20 h.p. Honda Fuel Capacity....................................................................................................
Page 23 - MHP3 MAJOR PARTS ASSEMBLY ILLUSTRATION; ADJUSTING TRACK TENSION; MHP3 PARTS ILLUSTRATION
MHP3 User Manual ◄ 23 MHP3 MAJOR PARTS ASSEMBLY ILLUSTRATION • The track tension is adjusted with the unit lifted off the ground. Between the drive wheel and front idler wheel, there are 3 smaller rollers. • Once the unit is lifted off the ground, adjust the track tension to achieve 3/8” to ½” sag b...
Page 24 - MHP3 PARTS LIST—MAJOR ASSEMBLY
24 MHP3 User MANUAL ITEM P/N QTY DESCRIPTION 1 GTR20H12 1 POWER UNIT GTR20H14 1 POWER UNIT 2 21319 2 CAPSCREW 3 69477 2 LIGHTS – 5” MULTIPURPOSE 4 69490 2 WASHER 5 00719 4 NUT (PART OF ITEM 3) 6 04539 2 WASHER 7 2 NUT (PART OF ITEM 3) 8 1 RECTIFIER 9 69488 2 KNOB 10 69753 2 VALVE HANDLE 11 69465 1 D...
Page 25 - HOSE & FITTING ILLUSTRATION
MHP3 User Manual ◄ 25 HOSE & FITTING ILLUSTRATION MHP3 PARTS ILLUSTRATION
Page 26 - MHP3 PARTS LIST—HOSE & FITTING
26 MHP3 User MANUAL ITEM P/N QTY DESCRIPTION 1 69493 2 CONTROL VALVE 2 69495 4 STRAIGHT THREAD ADAPTOR 3 69496 2 STRAIGHT THREAD ELBOW 4 69497 4 STRAIGHT THREAD ADAPTOR 5 69503 2 HOSE ASSEMBLY 6 69504 2 HOSE ASSEMBLY 7 69505 2 HOSE ASSEMBLY 8 69506 2 HOSE ASSEMBLY 9 69507 2 HOSE ASSEMBLY 10 69494 2 ...
Page 27 - MHP3 ELECTRIC WIRING SCHEMATIC
MHP3 User Manual ◄ 27 MHP3 ELECTRIC WIRING SCHEMATIC MAIN WIRE HARNESS (DUAL CIRCUIT) P/N-62294 MHP3 PARTS ILLUSTRATION
Page 28 - MHP3 POWER UNIT FRAME ILLUSTRATION & PARTS LIST
28 MHP3 User MANUAL ITEM P/N QTY DESCRIPTION 4 58718 2 COUPLER SET (GTR20H12) 66784 2 COUPLER SET (GTR20H14) 5 58718 2 COUPLER SET (GTR20H12) 66785 2 COUPLER SET (GTR20H14) 6 60962 2 CAPSCREW, 1/4 IN. -20 7 69802 1 MANIFOLD ASSY, DUAL CIRCUIT (INCL 22–25, 27–29, 31, 33, 34) 8 59126 1 DASH DECAL 10 6...
Page 29 - MHP3 HONDA ENGINE
MHP3 User Manual ◄ 29 MHP3 HONDA ENGINE ILLUSTRATION MHP3 PARTS ILLUSTRATION 5 6 34 44 27 50 51 8 26 28 42 43 42 31 42 29 17 16 14 13 12 11 9 10 4 15 20 21 23 18 25 22 19 41 40 39 38 7 53 46 54 M AGN ETO WIR E 74 75 76 79 80 81 82 83 84 87 44 24 2 72 37 52 35 36 71 73 IT E M 36 RUBBE R GR OM M ET ON...
Page 30 - MHP3 HONDA ENGINE PARTS LIST
30 MHP3 User MANUAL ITEM P/N QTY DESCRIPTION 4 73646 1 HONDA ENGINE ASSY (INCLUDES: RECTIFIER, RECTIFIER HARNESS, EXHAUST MANIFOLD, STUB SHAFT AND MISC HARDWARE. NOTE: THIS ENGINE CHANGED IN LATE JULY 2014 INCLUDING A DIFFERENT ENGINE OIL FILTER ORIENTATION. IF REPLACING THE ENGINE ON AN OLDER UNIT ...
