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HG3555A/42306 Portable Power Unit

Greenlee Textron / Subsidiary of Textron Inc.

13

4455 Boeing Dr., Rockford, IL 61109-2988   815/397-7070

Battery

Battery Maintenance and Replacement

Check battery electrolyte level at least once a month.
Stop power unit engine when checking battery electro-
lyte level. If electrolyte level is low, fill to required level
using distilled water only. Clean battery terminals and
cable clamps when required. After cleaning, coat battery
terminals and cable clamps with grease or other suitable
product to reduce corrosion. When battery replacement
becomes necessary it is recommended that replacement
battery should meet or exceed original battery specifica-
tions; amps, cranking power, etc.

Pneumatic Tires

Inflate power unit tires to the recommended pressure
printed on the sidewalls of the tires. Do not exceed tire
manufacturer’s recommended maximum pressure
printed on the sidewalls of the tires or rim
manufacturer’s recommended maximum pressure
stamped on the rim, whichever is lower.

Troubleshooting

Stop engine when checking battery
electrolyte level. Do not check or fill
battery electrolyte level near an open
flame, sparks, or when smoking.
Battery fumes are flammable and
explosive, and if ignited will result in
severe injury or death.

Before You Begin

1.

Any tool used with this power unit must be an
Open-Center system type tool.

2.

Verify that the pressure and return hoses are con-
nected properly to the power unit and tool ports.

3.

Power unit reservoir must be filled to FULL level with
hydraulic fluid.

4.

Start the power unit hydraulic oil flow. All separate
shut-off devices must be opened (on/off valves, etc.)

5.

After verifying all of the above, check the tool to see
if it operates.

If the tool does not operate, it will be necessary to
pinpoint the power unit, tool, or hoses as the prob-
lem area. The following steps will help to determine
the problem area.

Determine the Problem Area

1.

Stop the power unit hydraulic oil flow. Disconnect the
existing tool from the hoses and power unit.

2.

Connect a known working tool to the hoses and
power unit. See the tool’s operators manual for
correct hook-up procedure. Start the power unit
hydraulic oil flow.

If the known working tool operates, the problem is in
the disconnected tool. See the tool operator’s
manual for troubleshooting.

If the known working tool does not operate, the
problem is likely to be in the hoses or the power unit.
Proceed to Step 3.

3.

Stop the power unit hydraulic oil flow. Disconnect the
existing hoses from the known working tool and
power unit.

4.

Connect a different set of hoses to the known
working tool and power unit. Start the power unit
hydraulic oil flow.

If the known working tool operates with the different
set of hoses, the problem is in the disconnected
hoses.

If the known working tool does not operate,
the problem is in the power unit. See the Trouble-
shooting charts in this operator’s manual.

Maintenance (cont’d)

When working on or around the battery:

• Remove jewelry, wristwatches and any other

conductive items. The current produced by the
battery can cause severe burns.

• Wear eye protection and gloves and handle the

battery carefully. Contact with battery acid can
cause severe burns or blindness.

Failure to observe these warnings could result in
severe injury or death.

Summary of Contents for Fairmont 42306

Page 1: ...ron Inc REV 5 3 00 DUAL CIRCUIT PORTABLE HYDRAULIC POWER UNIT HG3555A 42306 Read and understand this material before operating or servicing this power unit Failure to understand how to safely operate...

Page 2: ...________________ WHERE PURCHASED ________________________ Always mention the tool s serial number when ordering or writing about parts For convenience in ordering parts are listed by part number descr...

Page 3: ...ive hoses and proper personal protective equipment Failure to observe this warning could result in severe injury or death Do not operate power unit without safety guards in place Keep all parts of the...

Page 4: ...amaged hoses or couplings can fail resulting in injury or property damage Use this tool for manufacturer s intended purpose only Use other than that which is described in this manual could result in i...

Page 5: ...dentification Figure 1 Parts of the HG3555A Portable Power Unit 1 Serial Number 7 Oil Cooler 2 Gasoline Engine 8 Control Panel 3 Retractable Handles 9 Flow Selector Handles 4 Hydraulic Oil Filter 10 T...

Page 6: ...r Maximum 20 hp 3600 rpm Torque ft lbs Maximum 32 8 ft lbs 2600 rpm Recommended Hydraulic Fluids Any non detergent hydraulic fluid which meets the following specifications or HTMA specifications may b...

Page 7: ...the power unit pressure port to the tool pressure port P Disconnecting Hoses See Figures 1 and 3 1 Stop the power unit 2 Disconnect the pressure supply hose from the power unit pressure port to the t...

Page 8: ...en working around power unit Hot surfaces can cause serious burns Do not let the power unit engine run unattended The engine must be monitored so that it can be shut down immediately in case of a malf...

Page 9: ...1 to the NEUTRAL position 2 Pull out the choke knob 2 Note A warm engine requires less choking than a cold engine 3 Move throttle lever 3 out to the fully open position 4 Move the key switch 4 to the...

Page 10: ...oses starting power unit etc To use the handles in the extended position for transport Pull out the retaining pins 5 Pull the handles fully out Replace retaining pins 5 through the handles into the ho...

Page 11: ...ear an open flame sparks or when smoking Fuel is flammable and explosive and if ignited will result in severe injury or death Skin Injection Hazard High pressure oil easily punctures skin causing seri...

Page 12: ...lic Fluids Every 10 Hours 1 Wipe all power unit surfaces clean of grease dirt and foreign material 2 Inspect the hydraulic system hoses and fittings for signs of leaks cracks wear or damage Replace if...

Page 13: ...art the power unit hydraulic oil flow All separate shut off devices must be opened on off valves etc 5 After verifying all of the above check the tool to see if it operates If the tool does not operat...

Page 14: ...to the NEUTRAL position position Electric short broken wire or loose Check wires and connection connection Repair or replace Engine lacks power runs rough See engine operator s manual backfires etc T...

Page 15: ...eing used Hydraulic filter needs service Replace hydraulic filter Power unit components pump valve Repair or replace components etc worn or damaged Engine output insufficient Engine See engine operato...

Page 16: ...PPLY LOCTITE F015744 TO SET SCREWS TORQUE TO 100 IN LB 5 6 7 3 2 12 9 20 17 13 14 15 16 23 22 21 19 18 59 37 36 54 43 42 26 53 28 52 76 77 75 35 58 APPLY LOCTITE F015744 TO THREADS 55 31 32 25 48 69 E...

Page 17: ...lbow 1 8 NPT 1 33 F024679 Oil Reservoir Cap 1 34 41278 F003085 Cap Screw 1 4 x 1 2 Hex Head 4 35 152339 Roll Pin 1 8 x 1 2 36 155834 Leg 2 37 158150 Pad Leg 2 38 41311 F009667 Cap Screw 1 4 x 1 1 2 He...

Page 18: ...diary of Textron Inc 18 4455 Boeing Dr Rockford IL 61109 2988 815 397 7070 Figure 7 HG3555A 42306 Power Unit Hydraulic Components and Piping 24 25 6 19 5 29 15 HYDRAULIC PUMP 28 7 14 11 11 11 1 17 13...

Page 19: ...Hex Stop Nut 1 4 4 10 F015627 Hose Clip 4 11 F012147 Hose Clamp 4 12 F022989 Hose Clamp 4 13 41989 F022687 Relief Valve 2 14 F024695 90 Elbow 3 4 M NPT x 3 4 ID Hose 3 15 F024676 90 Elbow 1 2 F NPT x...

Page 20: ...4 Carriage Bolt 1 4 x 1 2 3 41291 F007022 Hex Nut 1 4 2 4 156654 Wire Assembly 1 5 155785 Wire Assembly 1 6 41276 F003067 HHCS 1 4 20 x 5 8 1 7 41431 F013588 Nut 1 4 20 1 8 F030027 Hour Tach Meter 1 9...

Page 21: ...must be taken to protect the hose from excessive abrasion which can result in erosion snagging and cutting of the hose cover Exposure of the reinforcement will significantly accelerate hose failure 2...

Page 22: ...4 MAINTENANCE Even with proper selection and installation hose life may be significantly reduced without a continuing maintenance program Frequency should be determined by the severity of the applica...

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