henr

Service Commitment

Response within 10 minutes

Engineers/accessories arrive in 12 hours

Trouble shooting done in 24 hours

Maintenance Policy

6 month warranty for the complete machine

Regular door to door service available within warranty period

Quick response and door to door maintenance provided within 24 hours

Standby equipment provided if maintenance downtime is over 3 days.

Perfect tracking management system, precise and timely maintenance service provided

HENR Technology Products Warranty Manual

NO.	Parts	Quantity	Warranty Period	Description
1	Main Valve Box Connecting Base	1	6 months or 1000 working hours	Connecting shaft, base
2	Main Valve Box	1	6 months or 1000 working hours
3	Rotary Bearing Assembly	1	6 months or 1000 working hours	rotary motor, rotary balance valve, slewing mechanism included; sealing element excluded
4	Propulsive Beam	1	6 months or 1000 working hours
5	Carriage Beam	1	6 months or 1000 working hours
6	Drill Bit Assembly	1	6 months or 1000 working hours	shank, impact piston, energy accumulator membrane, sealing element, etc. wearing parts excluded
7	Rock Drill Headstock Components	1	6 months or 1000 working hours	base plate, side plate, cylindrical pin
8	Pulley Base Component	1	6 months or 1000 working hours	pulley base plate, pulley bearing
9	Oil pipe tray base	1	6 months or 1000 working hours
10	Propulsion Cylinder	1	6 months or 1000 working hours
11	Compensating Cylinder	1	6 months or 1000 working hours
12	Main Valve	1	6 months or 1000 working hours
13	Hydraulic Oil Pipe	1	6 months or 1000 working hours	hydraulic pipe connector included
14	Energy Accumulator	1	6 months or 1000 working hours	energy accumulator membrane excluded
15	Oil Gas Distributor	1	6 months or 1000 working hours
16	Control Box	1	6 months or 1000 working hours
17	Sensor	Several	6 months or 1000 working hours
18	Fixture Block	Several	6 months or 1000 working hours
19	Front Bracket	1	6 months or 1000 working hours
20	Centre Drill-rod Lifter	1	6 months or 1000 working hours	drill-rod lifter cover excluded
21	Pulley	1	3 months	Pulley, bearing
22	Wirerope	2	3 months
23	Air Compressor Components	1	3 months or 500 working hours	Hosepipe, fuse, oils, lubricant, cooling liquid, belt, accumulator, sealing element, filter and other wearing parts excluded.
P.S.: Filter element, grabhook, sliding block, shank, bore bit, drill rod, connecting sleeve, oil, wire harness, fastener, sealing element, nylon, rubber etc. wearing parts and consumables are beyond the scope of warranty.

Warranty Manual-8 Hours Maintenance Details

NO.	Parts	Details
1	Rotary Motor	Refuel grease for both side grease holes.
2	Oil Gas Distributor	Check the oil level is in position of three-quarters.
3	Oil Cylinder	Propulsion cylinder, compensating cylinder no leakage.
4	Motor	Slewing bearing motor, drill bit motor no leakage.
5	Main Valve	No leakage.
6	Hydraulic Oil Pipe	Oil pipe connector no leakage.
7	Hydraulic Oil Pipe	Check the oil pipe tension of the hydraulic oil pipe tray and adjust the natural sagging not exceeding 30mm when in horizontal level.
8	Wirerope	Check the tension and adjust not exceeding 30mm when pressing by hands.
9	Fixture Block	The bolt is no looseness.
10	Electronic Control Box	Indicator lights when turn on the power switch.
11	Rock Drill Bit	Refuel lubricating grease.
12	Rock Drill Bit	Check leakage between the shank and connecting sleeve
13	Rock Drill Bit	Check damage of the thread in the shank.
14	Rock Drill Bit	Look out the hydraulic hose, if the vibration amplitude is overlarge, then check the energy accumulator damaged or not.
15	Air Compressor	Check warning messages.
16	Air Compressor	Oil level of the engine should be between two marks of the dipstick.
17	Air Compressor	Check leakage in the diesel.
18	Air Compressor	Check compressor oil level, the pressure gauge pointer should in the green area when shutdown.
19	Air Compressor	Fuel filter water discharges.
20	Air Compressor	Air filter vacuum valve emptying.

50 Hours Maintenance Details

NO.	Parts	Details
1	Fastening Bolt	Check fastening bolts of main valve /box, fixture block, bore bit, air compressor base and sensor assembly, and make sure no looseness or falling out.
2	Main Valve Connecting Base	Refuel grease for 2 hinge joints and 4 grease holes.
3	Slewing Bearing	Rotary motion no abnormal sound.
4	Oil Gas Distributor	Check abrasion and oil leakage condition.
5	Pulley Base	Refuel grease.
6	Pulley	No friction with the pulley base.
7	Hydraulic Oil Pipe	Oil pipe surface no abrasion.
8	Propulsion Oil Cylinder	Clean surface of the bare piston rod.
9	Compensating Cylinder	Clean surface of the bare piston rod.
10	Sensor Module	Limit switch and sensor unit no looseness or loss.
11	Hydraulic Oil Pipe Tray	Buttering the tray surface and tray bearing.
12	Hydraulic Oil Pipe Tray	Hydraulic oil pipe abrasion because of no mutual junction.
13	Rock Drill Bit	All threads should be tightened up.
14	Rock Drill Bit	Check damage of oil return accumulator.
15	Air Compressor	Check air, engine oil, fuel leakage of the compressor.
16	Air Compressor	Check damage and looseness of the engine base damping rubber.
17	Air Compressor	Check electrolyte liquid level and accumulator connecting wire.
18	Air Compressor	Reinforce the bolts 81Nm on oil-gas separator cover plate
19	Air Compressor	Check air filter, clean or change it when necessary.
20	Air Compressor	Check connection on the manifold of the air filter entry.
21	Air Compressor	Fuel filter water discharge
22	Air Compressor	Check whether the radiator blocking or not, use compressed air purge.

250 Hours Maintenance Details

NO.	Parts	Details
1	Fastening Bolt	Check fastening bolts of main valve /box, fixture block, bore bit, air compressor base and sensor assembly, and make sure no looseness or falling out.
2	Main Valve Box	No looseness of the connecting bolt that connected to the box base, tightening torque 300Nm.
3	Slewing Bearing	Tightening bolt torque 500Nm.
4	Oil Gas Distributor	Check wear and oil leakage.
5	Oil Gas Distributor	Hydraulic oil level is in the position of three-quarters.
6	Propulsive Beam	Check damage and wear.
7	Rock Drill Bit	The central position of the shank and clamping rod unit are concentric.
8	Rock Drill Bit	Check installation, tightening torque 73Nm.
9	Fixture Block	Fixture block bolt tightening torque 73Nm.
10	Sliding Block	Check wear, minimum thickness 4mm.
11	Pulley	No friction with the pulley base.
12	Oil Cylinder	Propulsion cylinder, compensating cylinder no leakage.
13	Oil Cylinder	Propulsion cylinder, compensating cylinder no damage or scratch.
14	Oil Cylinder Hinge Joint Bearing	Maximum clearance 1mm.
15	Compensating cylinder	Tightening torque 90Nm
16	Motor	Slewing bearing motor, drill bit motor no leakage.
17	Valve	Main valve no leakage.
18	Hydraulic Oil Pipe	Oil pipe connector no leakage.
19	Hydraulic Oil Pipe	Oil pipe surface no sign of wear.
20	Control Box	Normal action.
21	Display Screen	Propulsive hydraulic pressure is about 5MP, rotary hydraulic pressure is about 12MP, impacting pressure is about 20MP, main oil inlet P pressure is less than 25MP, oil return temperature is less than 80℃.
22	Sensor Module	Limit switch, induction block no looseness or missing.
23	Wirerope	Check the tension and adjust not exceeding 30mm when pressing by hands.
24	Hydraulic Oil Pipe Tray	Check the oil pipe tension and adjust the natural sagging not exceeding 30mm when in horizontal level.
25	Hydraulic Oil Pipe Tray	Hydraulic oil pipe abrasion because of no mutual junction.
26	Carriage	Check damage, tightening torque 185Nm.
27	Carriage	Gap between propulsive beam is 2-4mm.
28	Rock Drill Bit	Check damage of the thread in the shank. Change the shank per every 8000 meters drilling depth.
29	Rock Drill Bit	Check damage of the thread in the shank.
30	Rock Drill Bit	All threads should be tightened up.
31	Air Compressor	Check air, engine oil or fuel oil system no leakage.
32	Air Compressor	Refuel grease for door bolt, coupler and other moving parts.
33	Air Compressor	Clean the cooler dust or debris.
34	Air Compressor	Adjust the tightness degree of the fan belt.
35	Air Compressor	Check battery electrolyte liquid level and accumulator connecting wire.
36	Air Compressor	Check damage and looseness of the engine base damping rubber.
37	Air Compressor	Change engine oil per every 500 working hours.
38	Air Compressor	Change engine oil filter per every 500 working hours.
39	Air Compressor	Change fuel filter per every 500 working hours.
40	Air Compressor	Change air filter element per every 1000 working hours.
41	Air Compressor	Change compressor oil per every 1000 working hours.
42	Air Compressor	Change compressor oil filter per every 1000 working hours.