red roo HT912 Operation, Safety & Maintenance Instructions Download Page 5

USE COMMON SENSE AND PLENTY OF IT

1)

DO NOT allow any person to operate the hydraulic trencher without first reading and

understanding the safety precautions and operating instructions. KNOW THE CONTROLS AND

HOW TO STOP THE HYDRAULIC TRENCHER QUICKLY IN AN EMERGENCY.

RELEASE CONTROL LEVER TO STOP 

THE MACHINE

.

2) NEVER allow children or untrained adults to operate the hydraulic trencher.
3) ALWAYS wear protective clothing when operating the hydraulic trencher. This includes, but is not

limited to: safety glasses, hard hat, loose fitting gloves, steel capped boots and hearing protection. NEVER

wear loose fitting clothing or jewellery when operating the hydraulic trencher.

Keep all clothing away from moving parts. Items could become caught in the

machine, resulting in injury.

4) ALWAYS use hydraulic trencher in a well lit area. 
5) ALWAYS make certain the hydraulic couplings are properly connected prior to starting the engine.
6)

NEVER operate hydraulic trencher on a slope that exceeds 15˚.

 Trenching

on an incline is

dangerous and not recommended.

7)

Police the area before

 trenching

. Remove any foreign objects in the

 trenching

area eg bricks,

rocks, wire and sticks. Locate and mark any sprinkler heads, water pipes, gas lines, electrical

and telephone cables or any other hazard either below or above ground.

8)

DO NOT allow other persons near the hydraulic trencher. It is up to the operator to keep

bystanders and animals a minimum of 6 metres (18ft) away from the machine while in operation.

9)

NEVER operate the hydraulic trencher when fatigued. ALWAYS BE ALERT! If you get tired while

operating the hydraulic trencher, take a break. If you have any type of physical or mental condition that

may be aggravated by strenuous work, check with your physician before you operate this equipment. NEVER

operate the hydraulic trencher under the influence of medication, alcohol or drugs.

11) DO NOT leave the machine unattended while the engine is running.
12) DO NOT overspeed the engine or alter the governor settings. Excessive speed is dangerous and will 

shorten engine life.

13)

WARNING: Keep away from exhaust muffler during or soon after operation.

14)

NEVER operate the hydraulic trencher in an enclosed area. Engine exhaust contains carbon monoxide,  

an odourless and tasteless poison.

15)

WARNING: Hydraulic oil is under extreme pressure and can get under skin and burn or poison. 

Do not operate unit with leaking or faulty hose connections or worn, cut hydraulic lines.

16)

STOP the engine and disconnect the spark plug lead(s) and allow engine to cool before inspecting or

performing maintenance on the hydraulic trencher.

17)

REFUELLING

* Shut off engine. DO NOT  REFUEL AN ENGINE WHILE OPERATING!

* Allow engine to cool. Minimum 5 minutes.

USE UNLEADED FUEL ONLY. Use clean, fresh unleaded fuel.

Do not mix oil with unleaded fuel.

* Do not over-fill fuel tank. Allow space for fuel expansion.

* Do not smoke near equipment.

* Allow no naked flame or hot material in refuelling area.

* Use only approved fuel containers and funnels. Remember, fuel is a potential hazard.

* Refer to engine owners manual for full details.

SAFETY PRECAUTIONS FOR HT912 USERS

Outdoor Power Equipment Institute Recommendations

WARNING TO PURCHASERS OF INTERNAL COMBUSTION 

ENGINE EQUIPPED MACHINERY OR DEVICES:

The equipment which you have purchases does not have a spark arrester muffler. If this equipment
is to be used on any forest and brush covered land or grass covered unimproved land, the law may
require that a spark arrester muffler be installed and be in effective working order. The spark
arrester must be attached to the exhaust system and comply with local authorities by-laws.

5

10)

ALWAYS KEEP YOUR HANDS, FEET AND BODY AWAY FROM THE

 TRENCHING

AREA WHILE ENGINE IS RUNNING.

USE COMMON SENSE AND PLENTY OF IT

1)

DO NOT allow any person to operate the hydraulic trencher without first reading and

understanding the safety precautions and operating instructions. KNOW THE CONTROLS AND

HOW TO STOP THE HYDRAULIC TRENCHER QUICKLY IN AN EMERGENCY.

RELEASE CONTROL LEVER TO STOP 

THE MACHINE

.

2) NEVER allow children or untrained adults to operate the hydraulic trencher.
3) ALWAYS wear protective clothing when operating the hydraulic trencher. This includes, but is not

limited to: safety glasses, hard hat, loose fitting gloves, steel capped boots and hearing protection. NEVER

wear loose fitting clothing or jewellery when operating the hydraulic trencher.

Keep all clothing away from moving parts. Items could become caught in the

machine, resulting in injury.

4) ALWAYS use hydraulic trencher in a well lit area. 
5) ALWAYS make certain the hydraulic couplings are properly connected prior to starting the engine.
6)

NEVER operate hydraulic trencher on a slope that exceeds 15˚.

 Trenching

on an incline is

dangerous and not recommended.

7)

Police the area before

 trenching

. Remove any foreign objects in the

 trenching

area eg bricks,

rocks, wire and sticks. Locate and mark any sprinkler heads, water pipes, gas lines, electrical

and telephone cables or any other hazard either below or above ground.

8)

DO NOT allow other persons near the hydraulic trencher. It is up to the operator to keep

bystanders and animals a minimum of 6 metres (18ft) away from the machine while in operation.

9)

NEVER operate the hydraulic trencher when fatigued. ALWAYS BE ALERT! If you get tired while

operating the hydraulic trencher, take a break. If you have any type of physical or mental condition that

may be aggravated by strenuous work, check with your physician before you operate this equipment. NEVER

operate the hydraulic trencher under the influence of medication, alcohol or drugs.

11) DO NOT leave the machine unattended while the engine is running.
12) DO NOT overspeed the engine or alter the governor settings. Excessive speed is dangerous and will 

shorten engine life.

13)

WARNING: Keep away from exhaust muffler during or soon after operation.

14)

NEVER operate the hydraulic trencher in an enclosed area. Engine exhaust contains carbon monoxide,  

an odourless and tasteless poison.

15)

WARNING: Hydraulic oil is under extreme pressure and can get under skin and burn or poison. 

Do not operate unit with leaking or faulty hose connections or worn, cut hydraulic lines.

16)

STOP the engine and disconnect the spark plug lead(s) and allow engine to cool before inspecting or

performing maintenance on the hydraulic trencher.

17)

REFUELLING

* Shut off engine. DO NOT  REFUEL AN ENGINE WHILE OPERATING!

* Allow engine to cool. Minimum 5 minutes.

USE UNLEADED FUEL ONLY. Use clean, fresh unleaded fuel.

Do not mix oil with unleaded fuel.

* Do not over-fill fuel tank. Allow space for fuel expansion.

* Do not smoke near equipment.

* Allow no naked flame or hot material in refuelling area.

* Use only approved fuel containers and funnels. Remember, fuel is a potential hazard.

* Refer to engine owners manual for full details.

SAFETY PRECAUTIONS FOR HT912 USERS

Outdoor Power Equipment Institute Recommendations

WARNING TO PURCHASERS OF INTERNAL COMBUSTION 

ENGINE EQUIPPED MACHINERY OR DEVICES:

The equipment which you have purchases does not have a spark arrester muffler. If this equipment
is to be used on any forest and brush covered land or grass covered unimproved land, the law may
require that a spark arrester muffler be installed and be in effective working order. The spark
arrester must be attached to the exhaust system and comply with local authorities by-laws.

5

10)

ALWAYS KEEP YOUR HANDS, FEET AND BODY AWAY FROM THE

 TRENCHING

AREA WHILE ENGINE IS RUNNING.

Summary of Contents for HT912

Page 1: ...LLER Commercial Environmental Equipment Operation Safety Maintenance Instructions GT622 Commercial Environmental Equipment Online Demonstration Available at www redroo com products trenchers HT912 HYD...

Page 2: ...pment INTRODUCTION Machine Indentication Record Red Roo Customer number Machine model number Machine serial number Engine manufacturer Engine model number Engine serial number Dear Valued Customer Con...

Page 3: ...NT 9 WHEEL DRIVE NEUTRAL ADJUSTMENT 9 TROUBLESHOOTING 11 CHAIN VALVE ADJUSTMENT 10 LUBRICATION RERQUIREMENTS 10 PARTS LIST 13 WEB INFORMATION 30 WARRANTY POLICY 31 RED ROO SALES SERVICE COMPANY PTY LT...

Page 4: ...ymbols and phrases SAFETY Identifies general safety practices FIRST DANGER An instruction which if not followed could result in serious or fatal injury WARNING An instruction which if not followed cou...

Page 5: ...laws 5 10 ALWAYS KEEP YOUR HANDS FEET AND BODY AWAY FROM THE TRENCHING AREA WHILE ENGINE IS RUNNING USE COMMON SENSE AND PLENTY OF IT 1 DO NOT allow any person to operate the hydraulic trencher withou...

Page 6: ...E WHEEL HUB FEATURE Operation Pull one free wheeling pin slightly using the split ring Rotate the pin until the 3mm 1 8 diameter roll pin aligns with the slot in the mounting plate Allow the pin to sl...

Page 7: ...button located either on the main control console or the engine 7 7 STOPPING THE ENGINE a Be sure both hubs are engaged turn hub lock handle clockwise See Free Wheel Hub Features Have engine at full...

Page 8: ...THE MACHINE Forward Cutting Edge Rearward Cutting Edge MAKE SURE THAT THE RESERVOIR OIL LEVEL IS TO THE SIGHT GLASS BEFORE STARTING THE MACHINE SERVICE INFORMATION 8 1 Remove the trencher from shippi...

Page 9: ...e from the pin of the lever to the cable housing Calculate the difference Adjust the cable for 7 16 to 1 2 movement of the actuator arm at the pin Do not include any level free play in the measurement...

Page 10: ...TMENT Be sure to grease all lubrication points as outlined in this manual LUBRICATION REQUIREMENTS 10 The clutch valve control should be adjusted to completely activate the chain valve when the dig ch...

Page 11: ...hange motor Adjust Relief Valve to 2200psi or replace relief spring if needed 11 1 2 3 RH912 TRENCHER TROUBLE SHOOTING GUIDE A Entire hydraulic system does not operate and the engine is not under load...

Page 12: ...ulic Shell Donax TD or comparable RH912 TRENCHER TROUBLE SHOOTING GUIDE CONT 1 2 3 D Wheel fails to turn but chain rotates Hub unlocked Wheel Drive Valve not fully activated Wheel axle key sheared Loc...

Page 13: ...Commercial Environmental Equipment Commercial Environmental Equipment 13...

Page 14: ...Commercial Environmental Equipment Commercial Environmental Equipment 14...

Page 15: ...Commercial Environmental Equipment Commercial Environmental Equipment 15...

Page 16: ...Commercial Environmental Equipment Commercial Environmental Equipment 16...

Page 17: ...Commercial Environmental Equipment Commercial Environmental Equipment 17...

Page 18: ...Commercial Environmental Equipment Commercial Environmental Equipment 18...

Page 19: ...Commercial Environmental Equipment Commercial Environmental Equipment 19...

Page 20: ...Commercial Environmental Equipment Commercial Environmental Equipment 20...

Page 21: ...Commercial Environmental Equipment Commercial Environmental Equipment 21...

Page 22: ...Commercial Environmental Equipment Commercial Environmental Equipment 22...

Page 23: ...Commercial Environmental Equipment Commercial Environmental Equipment 23...

Page 24: ...Commercial Environmental Equipment Commercial Environmental Equipment 24...

Page 25: ...Commercial Environmental Equipment Commercial Environmental Equipment 25...

Page 26: ...Commercial Environmental Equipment Commercial Environmental Equipment 26...

Page 27: ...Commercial Environmental Equipment Commercial Environmental Equipment 27...

Page 28: ...Commercial Environmental Equipment Commercial Environmental Equipment 28...

Page 29: ...Commercial Environmental Equipment 29...

Page 30: ...redroo com and explore our PRODUCTS Hop to GT622 GARDEN TILLER Commercial Environmental Equipment Operation Safety Maintenance Instructions 30...

Page 31: ...enance items eg filters belts drive chains blades knives lubricants may void Warranty Use of non genuine Red Roo parts may void Warranty THERE IS NO OTHER EXPRESS WARRANTY IMPLIED WARRANTIES INCLUDING...

Page 32: ...ne know the operational demands and special conditions affecting the equipment in your situation and therefore assume the responsibility for developing carrying out and enforcing the safety concepts w...

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