JH58
GASOLINE HAMMER/DRILL
INSTRUCTION MANUAL
User Manual
Congratulation on you for buying our product. This manual for our company produces JH58 hammer pick dual-purpose machine product instructions. Hammer pick dual-purpose machine produced by our company pays attention to ergonomics, small volume and light weight and simple operation, and in similar products with low emissions, compared with other brands, this hammer pick machine energy saving, environmental protection, convenient operation and maintenance, long service life, is the customer preferred products.
For your safety, please follow the instructions on the safe operation of the rules of operation and technical maintenance, or will cause harm to your personal safety or damage the machine.
1 Name of major part
No. | Parts Name | No. | Parts Name | No. | Parts Name |
| 1 | Slide clamp set | 2 | Reduction gearbox assy | 3 | Air filter |
| 4 | Ventilation Door | 5 | Stop button | 6 | Throttle button |
| 7 | Start handle | 8 | Fuel can | 9 | Fuel can bracket |
| 10 | Fuel oil bubble | 11 | Gear box cover | 12 | Bend plate |
| 13 | Adjusting knob | 14 | Joint lever | 15 | Muffler cover |
| 16 | Handle | 17 | Spark plug | 18 | Throttle rope |
| 19 | Grease lid | 20 | Side handle |
Figure 1 Figure 2
2 Instruction of safe operation
2.1 Work place
2.1.1 Keep the work place open and bright. Chaos, crowded and dark field can cause accidents.
2.1.2 Don’t in flammable and explosive, such as a flammable liquid, gas or dust environment or use the machine operation. Machine sparks can ignite dust or gas.
2.1.3 Non-work personnel should stay away from the operating area in case of injury.
2.1.4 In the forests, mountains, grasslands and other wild field, when using the machine must be (caused by high temperature machine emissions) fire prevention measures.
2.2 Personal Safety
2.2.1 Stay alert, when operating the machine in operation and attention is in stay awake. Don’t in the tired, drugs, alcohol, or treatment response under operating the machine. During the machine operation energy dispersion can cause serious personal injury.
2.2.2 Use safety equipment. Always wear goggles. Safety devices, such as the appropriate conditions of dust masks, antiskid safety shoes, safety helmet, hearing protection devices can reduce personal injury.
2.2.3 Dress appropriately. Don’t wear loose clothes or accessories. The hair, clothes and sleeve away from moving parts. Loose clothing, accessories, and the hair will be involved in the moving parts.
2.2.4 Used as tools to provide the auxiliary handle. Miss operation can lead to personal safety.
2.2.5 Watch your step when using, keep body balance. After the machine start, shall not be one-handed operation of this machine.
2.3 The use of the gasoline engine and the matters needing attention
2.3.1 Gasoline flammable, should be in a well ventilated environment for refueling. Come on, please close the gasoline engine.
2.3.2 Please do not too much oil, shall not exceed the can filler neck. If there is a fuel oil spill, need fuel volatilization completely before start the machine.
2.3.3 In the storage area to store gasoline, must eliminate fire hazard source or Mars.
2.3.4 Oil refueling, tighten the cover of the fuel can, the work process often should check whether there is damage to oil gas, if damaged, immediately stop the machine and replace.
2.3.5 Every time before use, please be sure to check the fitting fastening screws are tight, if loose, must be to use screw fastening.
2.3.6 When improve machine, cannot throw the throttle handle, let the machine run idle.
2.3.7 Handle should be kept dry, clean, no oil or fuel mixture
2.3.8 If midway stop operation; Be sure to shut down the gasoline engine.
2.3.9 Fuel to ban the use of pure gasoline (no two-stroke engine oil), should be in proportion of 4.2 fuel recommend against the use.
2.3.10 In a closed area, such as tunnel, ditch and a deep ditch work environment when using the machine, must ensure that fresh air is enough. The waste gas containing carbon monoxide. Shall be provided with ventilating fan for ventilation.
2.3.11 Ban rapid acceleration or braking, avoid damage to the machine.
2.3.12 Before transportation, should be emptying the can fuel, prevent leakage.
2.3 Maintenance
Non-professional maintenance personnel removal machine is forbidden, in order to avoid cause structural damage to parts, shorten the service life of the driver, or cause an accident.
2.3 Operating Mode
When switch from the hammer and hammer drill function knob in shown in “Figure 3”, rotate to receive the required operating mode. (note: must select operation mode under the condition of the engine stopped.)
Hammer Drill
Figure 3
3 Main use and feature
3.1 Use
This machine is suitable for the concrete and bricks and rock hammer drill or chisel on homework.
3.2 Feature
3.2.1 This product is lighter in weight, low emissions of gasoline engine type hammer/drill.
3.2.2 This product conforms to the man-machine engineering design, the greatest degree reduces the operator working strength, easy to operate, comfortable. Operator can achieve 360 – degree work.
3.2.3 Can adjust the impact energy and impact number, applicable to auger bit with diameter less than 40 mm and hollow boring bit with diameter of less than 50 mm.
3.2.4 Advantage: can save with heavy equipment, such as generator, air compressor, trucks.
4 Preparatory work before use
4.1 Fuel
Use more than 90 # gasoline and special two-stroke engine oil
Recommend the proportions
Condition | Gasoline:Engine oil |
| Run within 20 hours | 20:1 |
Run after 20 hours | 25:1 |
4.1.1 Banning the use of pure gasoline (without two-stroke engine oil) as a fuel.
4.1.2 Add fuel in a well ventilated place
4.1.3 Please do not too much oil in fuel tank, please do not over the neck of the fuel can filler. If fuel overflow, must remove the fuel or fuel volatilization completely restart the gasoline engine.
4.1.4 Go after tighten the fuel can lid.
5 Start
5.1 Before starting the new machine. Repeatedly press the transparent semicircular fuel oil bubble (Figure 3) to the status of full of fuel, fill the carburetor with fuel. (When the gasoline engine is cool, close the throttle; when the gasoline engine is hot, open the throttle.) (See Figure 4)
Figure 4
- Choke (Close when cold start)
- Start handle
- Fuel bubble
5.2 Machine lie flat on the ground, one hand operation handle, another hand quickly pull starter handle 50 centimeters. Please do not make the handle in the process of repeated pull rebound, hold the handle, to prevent the rapid rebound in order to protect the starter
5.3 After starting the gasoline engine, completely open the throttle.
6 Run
6.1 Idle speed gasoline engine starting and running for 3 to 5 minutes, preheat machine.
6.2 When gasoline engine has been preheated, according to the impact energy required, press the throttle button to the proper position.
Note: in the first 24 hours, using the machine work should give priority to with low speed, unavailability of maximum throttle; In order to prolong service life.
6.3 Gasoline engine speed control in medium speed gears.
6.4 Prohibited in the non-work state operating the machine at a high speed.
7 Stop machine
7.1 Loosen the throttle button, the machine idle for 3 to 5 minutes
7.2 Down by the flameout switch button until the engine stalled. Flame out switch position as shown in figure 1
8 Technical maintenance
8.1 Air Filter
Check the air filter regularly. Air filter cartridge dust jams will reduce gasoline engine power and shorten the service life of the cylinder. If the filter cartridge is dirty, you must use warm water and detergent, clean with a dry cloth to wipe dry after installation. If there is any breakage, the filter must be replaced. Especially in dusty work environment, maintenance cycle is shorten appropriately.
8.2 Fuel filter
If the fuel filter blockage, machine speed decline, impact can be reduced. Methods: (1) open the lid of fuel can, with a metal hook the hook out of the can and clean fuel filter (2) when clean fuel filter, and clean fuel can as shown in Figure 4, 5 and 6.
Figure 5 Figure 6 Image 7
8.3 Carburetor
The fuel can and carburetor often have residual oil. Over time, the residual oil into the oil. Residual oil can jam the oil, the gasoline engine won’t start. Therefore, when the machine idle for more than a week, you must put the fuel vent. Methods: pull into the carburetor fuel oil foam rubber tubing to repeat compressions bubble discharge of oil, fuel oil in the oil bubble and return pipe put dry after plugged into the tubing.
8.4 Spark plug
To ensure the normal operation of the gasoline engine, reasonable spark plug gap is 0.5 -0.7 mm. Use steel wire brush to clean carbon deposit. See Figure 8.
Figure 8
8.5 Muffler
Regular cleansing dirt or use detergent to clean the silencer muffler import and export in the dirt.
8.6 Lubrication of impact cylinder
Cylinder lubrication: unscrew grease cover counterclockwise (see figure 2), join 50 grams of special grease for cylinder hammer picks, then screw the grease cover clockwise to tighten.
8.7 Cylinder cooling fin
Remove dust regularly, to ensure that the cylinder heat dissipation is good. The hammer pick dual-purpose machine is of air cooling type. Cylinder radiator dust will directly affect the heat dissipation effect.
9 Failure analysis and troubleshooting methods
Problems analysis and solving
Example1: difficulties in starting gasoline engine in cooling state.
| Whether the spark plug is moisture. | →Dry the igniter plug |
↓ | |
| Whether the spark plug produces electric spark | →replace the igniter plug |
↓ | |
| Too much fuel absorbed | →lessen the fuel supply |
Example 2: Difficulties in restarting after a sudden stop
| Whether fuel runs out or the carburetor is blocked | →Refill fuel can or clean the carburetor |
↓ | |
| Whether the fuel filter is blocked | →clean the fuel filter |
↓ | |
| Too much carbon deposit in igniter plug | → Remove carbon deposit |
Example 3: Reluctance in speeding and weakness in power
| Carbon deposit cover the entrance of the cylinder or silencer | → Remove carbon deposit |
↓ | |
| Whether the fuel can and the air vent on the fuel can cover is blocked | →Clean |
↓ | |
| Blockage in air filter | → Clean the filter |
Example 4: abnormal sound
| Carbon deposit found in combustion chamber | → Remove carbon deposit |
↓ | |
| Serious abrasion in active components | →Replace |
Example 5: The machine is working normally, but the efficiency of cracking is very low
| The head of the chisel is attrited badly | →Replace |
Please contact with Sales Agency of the Crusher if your machine needs further mending.
10 Product key data
Gasoline engine type | 36X32mm, Single cylinder, air cooling, 2 stroke |
| Type | JH58 |
L×W×H (mm) | 630×240×240 |
| Fuel | mixing oil(gasoline 25, two-stroke engine oil 1) |
Fuel tank capacity | 0.9L |
| Weight | ≈10.5Kg |
Displacement | 32.7CC |
| Maximum power | 1000W |
Max torque and speed | 1.5N.m/5000r/min |
| Engine no load speed | 11000r/min |
No load speed | 400r/min |
| Impact frequence | 3200 BPM |
Consumption rate | ≤0.50L/h |
| Impact energy | 12J |
Carburetor type | MZ10.7 |
| Spark plug type | L6T |
Drill ability | Concrete (auger bit) : MAX φ40mm Brick (hollow drill) : MAX φ50mm |
| Chisel | SDS-MAX |
Start system | Hand pull start |
11 Maintenance Cycle
The following Data are given common use of the product. Suppose it is in worse working condition, such as thick dust in the air or much longer work hours for Crusher, the maintenance cycle should be shortened correspondingly. | Before woke | After work or every day | After Filling oil | Every Week | Every Month | Broken Down | If necessary | |
| The whole machine | outlook check (state, stabilities of screws) | √ | √ | |||||
Cleaning | √ | |||||||
| Control handle/stop button | function check | √ | √ | |||||
Air Filter | Clean | √ | √ | |||||
| Replace | √ | |||||||
Fuel Filter | Check | √ | ||||||
| Replace | √ | |||||||
Oil Can/Oil Can cover | Clean | √ | √ | |||||
| Check | √ | √ | ||||||
Tighten | √ | |||||||
| Reduction Gearbox / Impact Cylinder | Clean | √ | ||||||
Add oil | √ | |||||||
| Muffler | Check | √ | ||||||
Clean carbon deposit | √ | |||||||
| Cylinder Cooling Fin | Check | √ | ||||||
Clean | √ | |||||||
| Spark Plug | Check/Adjust Customize the distance between electrodes | √ | ||||||
Replace | √ | |||||||
| Screw and Nut | Check | √ | √ | |||||
Tighten | √ | |||||||
12 Part list and exploded view of JH58 gasoline hammer/drill
No. | Part Name | QTY |
1 | Front cover | 1 |
| 2 | Round wire snap rings for shaft 32 | 1 |
3 | Check ring | 1 |
| 4 | Slide clamp set | 1 |
5 | Spring | 1 |
| 6 | Hexagon socket head cap screws M5X35 | 4 |
7 | Spring washer 5 | 7 |
| 8 | Flat gasket 5 | 4 |
9 | Front placket | 1 |
| 10 | Oil seal 40X50X7 | 1 |
11 | Round wire snap rings for shaft42 | 1 |
| 12 | Plain washer | 1 |
13 | Deep groove ball bearing 61808 | 2 |
| 14 | Retainer socket | 1 |
15 | Steel column 8X19.2 | 2 |
| 16 | Steel ball 7.14 | 3 |
17 | O-ring 28X2 | 2 |
| 18 | O-ring 19X2 | 2 |
19 | Deputy hammer | 1 |
| 20 | Plain washer (48X56X1.5) | 1 |
21 | Retainer | 1 |
| 22 | Plastic jacket | 1 |
23 | Seal ring 68x59x2.5 | 1 |
| 24 | Big plain washer68x50x2 | 1 |
25 | Steel ball 9 | 3 |
| 26 | Cylinder | 1 |
27 | Flat key3x18 | 2 |
| 28 | Cone tooth-35-1.75 | 1 |
29 | Tup | 1 |
| 30 | O-ring 28×3 | 2 |
31 | Piston pin | 1 |
| 32 | Piston | 1 |
33 | Connecting rod | 1 |
| 34 | Needle bearing | 1 |
35 | Spring gasket56 | 1 |
| 36 | Cylinder positioning ring | 1 |
37 | Hexagon socket head cap screws M6X40 | 4 |
| 38 | Spring washer 6 | 8 |
39 | Reduction gearbox | 1 |
| 40 | Grease cover | 1 |
41 | Exhaust sponge | 3 |
| 42 | Gas cap | 1 |
43 | Connecting base | 1 |
| 44 | Hex nutM8 | 2 |
45 | Cone tooth-6-2 | 1 |
| 46 | Deep groove ball bearing 6202-2RZ | 2 |
47 | Bearing pressure plate | 1 |
| 48 | Hexagon socket head cap screws M5X20 | 6 |
49 | Toggle plate | 1 |
| 50 | Gasoline engine | 1 |
51 | Hexagon socket head cap screws M4X10 | 1 |
| 52 | Adjusting knob | 1 |
53 | Knob spring | 2 |
| 54 | Convention | 1 |
55 | Rubber O seal ring 16X1.8 | 1 |
| 56 | Circlip for hole17 | 1 |
57 | Transform head | 1 |
| 58 | Rubber O seal ring8X1.8 | 2 |
59 | Hexagon socket set screw with flat point M5X16 | 1 |
| 60 | Cone tooth-9-1.75 | 1 |
61 | Flat key4X14 | 1 |
| 62 | Deep groove ball bearing16003 | 1 |
63 | Needle bearing HK152012 | 1 |
| 64 | Shaft with elastic gasket 58 | 1 |
65 | Flower hole gear | 1 |
| 66 | Wheel core | 1 |
67 | Tripping spring | 10 |
| 68 | Steel ball5.5 | 12 |
69 | Shaft with elastic gasket 14 | 2 |
| 70 | Clutch (58) | 1 |
71 | Conical spring | 1 |
| 72 | Small washer | 2 |
73 | Deep groove ball bearing 6000 | 2 |
| 74 | Reduction case cover | 1 |
75 | Bend plate | 1 |
| 76 | Hexagon socket head cap screws M6X25 | 2 |
77 | Needle bearing HK0810 | 2 |
| 78 | Transition gear | 1 |
79 | Straight pin 5X20 | 2 |
| 80 | Hexagon socket head cap screws M6X22 | 2 |
81 | Flat key 4X28 | 1 |
| 82 | Crank | 1 |
83 | Deep groove ball bearing 6002 | 1 |
| 84 | Crank bearing holder | 1 |
85 | Small helical | 1 |
| 86 | Cone tooth-15-2 | 1 |
87 | Guard tube | 1 |
| 88 | Throttle wire | 1 |
89 | Right connection rod | 1 |
| 90 | Big washer 8X2 | 2 |
91 | Hexagon socket button head screws M8X20 | 2 |
| 92 | Cross trough pan head self-tapping screw ST5.5X16 | 8 |
93 | Right handle | 1 |
| 94 | Cross trough pan head self-tapping screw – F type ST4.2X16 | 1 |
95 | Engine Stop Switch | 1 |
| 96 | Left handle | 1 |
97 | Left joint lever | 1 |
| 98 | Straight pin 6X22 | 1 |
99 | Accelerator switch | 1 |
| 100 | Wore pressing plate | 1 |
101 | Cross-recessed countersunk head self-tapping screw ST4X14 | 2 |
| 102 | Torsional spring | 1 |
| 103 | Square head screwM8X45 | 1 |
104 | Rand | 1 |
| 105 | The handle holder | 1 |
106 | fixed block | 1 |
| 107 | Auxiliary control lever | 1 |
Exploded view of JH58 hammer/drill
13 Part list and exploded view of JH58 gasoline engine
No. | Part Name | QTY |
1-1 | Hexagon socket head cap combination screws M5×20 | 13 |
| 1-2 | Starter | 1 |
1-3 | Start aluminum pad | 1 |
| 1-4 | Pulling plate | 1 |
1-5 | Oil seal FB12X22X7 | 2 |
| 1-6 | Left and right crankcases | 1 |
1-7 | Deep groove ball bearing 6201 | 2 |
| 1-8 | Woodruff key 3X13X5 | 1 |
1-9 | Crankcase mat | 1 |
| 1-10 | Hexagon socket head cap combination screws M5×30 | 4 |
1-11 | High pressure pack | 1 |
| 1-12 | Fly wheel | 1 |
1-13 | Hex flang locknut M8×1.25 | 1 |
| 1-14 | Steel flat matφ8X1.5 | 2 |
1-15 | Clutch | 1 |
| 1-16 | Wave washerφ10X15X0.5 | 2 |
1-17 | Clutch bolt M8×φ10 | 2 |
| 1-18 | Air deflector | 1 |
1-19 | Locating pin 5×10 | 2 |
| 1-20 | Fan cover | 1 |
1-21 | Hexagon socket head cap combination screws M5×14 | 3 |
| 1-22 | Muffler cover | 1 |
1-23 | Hexagon socket head cap screws M5×55 | 2 |
| 1-24 | Flat washer C level 5X12X1 | 2 |
1-25 | Muffler | 1 |
| 1-26 | Muffler washer | 2 |
1-27 | Cylinder cover top lid | 1 |
| 1-28 | Cylinder cover | 2 |
1-29 | Hexagon socket head cap combination screws M5×20 (10.9 level) | 4 |
| 1-30 | Spark plug | 1 |
1-31 | Hexagon socket head cap screws M5×50 | 2 |
| 1-32 | Air filter assy | 1 |
1-32-1 | Thumbscrew M5x9 | 1 |
| 1-32-2 | Air filter cover | 1 |
1-32-3 | Air filter pressing plate | 1 |
| 1-32-4 | Filter element | 1 |
1-32-5 | Air filter base component | 1 |
| 1-33 | Carburetor | 1 |
1-34 | 化油器垫 | 1 |
| 1-35 | Carburetor washer | 1 |
1-36 | Air inlet | 1 |
| 1-37 | Air inlet washer | 1 |
1-38 | Cylinder | 1 |
| 1-39 | Cylinder washer | 2 |
1-40 | Piston ring | 1 |
| 1-41 | Piston | 1 |
1-42 | Crankshaft connecting rod assy | 1 |
| 1-43 | Needle bearing K9X12X12 | 1 |
1-44 | Piston pin | 2 |
| 1-45 | Gudgeon pin circlip | 1 |
1-46 | Oil can assy | 1 |
| 1-47 | Oil can pressing plate protective jacket | 1 |
Exploded view of Gasoline Engine
13 JH58 product packing list
- Jack hammer……………………………. ……. …………1
- Point chisel……………………………… …………………1
- Drill………………………………… ……. ……. …………..1
- Ratio oil can…………………………………. ……. ……..1
- Special grease for cylinder (60g)…………………..1
- Manual………………………………… ……. ………………1
- Toolkit (including 1 spark plug, 1 5mm Allen wrench, 1 6mm Allen wrench, 1 straight screwdriver, 1spark plug handle, 1 8mm Allen wrench and 1 8-10 open wrench
