DG34C Elevating Platform Fire Truck
DG34C fire truck is a kind of main battle vehicle integrated with water tank, high pssure spray and ladder truck functions, widely applied in firefighting and rescue work of cities and towns, mines, oil fields, factories and other middle-high rise buildings, and is a necessity for high-rise firefighting, perso
nnel and property rescue.
I. Main Technical Characteristics
1.Benz 3344 type II chassis is adopted into DG34C, which has advanced performances, strong bearing capacity and full power reserves (320kw/31.45t) and its emission level reaches EURO 3.
2. The firefighting system has all-round functions and the pump and fire mo
nitor have outstanding performance. The PSP1500 pump system is adopted from American Darley Company, which is driven by full power take-off force, reliable and suitable for long time operation. The water mo
nitor installed on the platform is 5177 electric-type fire mo
nitor produced by American Akron Company. Water inlet, outlet and co
ntrol valves are completely equipped for ease of operation.
3. It's designed to have an in-built fire-fighting tank with a capacity of 4.7 tons of water, and a manual type PS30/50D fire mo
nitor is equipped on the upper part of the tank for fire fighting operation.
4. ba
sed on the PLC and CAN Bus distributed co
ntrol technology, the vehicle can achieve automatic leveling in lower structure, sub-regio
nal range control, platform load weighting, platform ultraso
nic collision detection, upper and lower structure posture dynamic mo
nitoring and single-key operation psentation function. The vehicle has a series of leading technologies.
5. Innovated structure promotes working performance and safety.The telescopic boom is octagon fitted with great circle arc section, with hydraulic cable transmission chain in-laid, which gives it a compact structure, good appearance and a strong bearing capacity. Auxiliary f
rame assembly is a large box-structure in"H"supporting mode; outrigger box is obliquely set, so as to enhance leveling function, stress performance as well as getting good appearance. Turntable co
nsole and seat are both designedintegrally, elements and pieces are ratio
nally distributed; the closure plate at back of turntable is designed for adjustable counterweight, efficiently alleviating overturning moment of upper structure and balancing front axle shaft load.
6. Lifting holes are added, so that lifting function can be realized by elevation of amplitude cylinder. The basic boom head can lift a weight of 2t and the lower part of platform can lift 0.4t weight.
7. LS load-sensing co
ntrol system of double variable displacement piston pump is adopted in hydraulic system, proportio
nal valve opening characteristic curve is optimized, working pssure for leveling function is promoted and operation performance is improved.
8. Working parameters of the overall vehicle areahead ofdomestic market. The maximum height is -3~34.5m, the maximum working range is 21m, ratio
nal layout and well-distributed axles and loads give full play to vehicle stability and boom bearing capacity.
9. Enriched optio
nal parts. The material of tanker body is customized according to customer's demand;all ofthe following systems are offered as options, such as reverse mo
nitoring system, electric centralized lubricating system, on-board generating unit and high power lighting system, fire scene mo
nitoring system and anemometer.
II. Safety Protective Devices on DG34C Fire Truck
1. Electronic-type working range limiter
2. Electro
nic working range display
3. Upper/lower structure interlocking device
If outriggers are not appropriately set, outrigger soft leg alarm "outrigger indicator lamp"won't come on and upper structure won't be able to work; if boom fails to rest on boom f
rame, outriggers won't work.
4. Soft leg alarm device
5. Lower structure leveling device (auto, manual)
6. Single-side working area limit device
7. Cabin area protection device
o
nly when telescopic boom elevation exceeds 40°within 50°of sector area in front of the vehicle, can crank arm "extend", so that upper structure can be able to rotate and avoid colliding with the cab.
8. Turntable mid-position protection device
If boom is not right at the middle of boom f
rame, "turntable centration"indicator lamp won't come on, so that boom won't rest on boom f
rame.
9. Work platform leveling device (auto, manual)
10. Work platform anti-collision device
11. Work platform swing limiting device
12. Work platform weighing device
13. Work platform mid-position protection device
14. Work platform anti-tipping device
15. Telescoping protection device
16. Crank arm elevation limiting device
17. Extreme position stop device
When telescopic boom elevation reaches 82°or -3°and when inclination angle between crank arm and main boom is 0°or 180°andwhen telescopic boom fully is fully extended or retracted, working speed will automatically stop.
18. Telescopic chain anti-loosening detection device
19. Crank arm ladder status detection device
20. Manual emergency operation
21. Emergency boom lowering device
22. Emergency power unit
When main engine is at faulty and gasoline engine fails to start up in time, the operator may operate the switchso thatthe telescopic boomcan automatically retract and lower.
Main technical parameters in driving status:
| Type | Item | Parameter |
Dimension
parameter
| Overall length (mm) | 12340 |
| Overall width (mm) | 2500 |
| Overall height (mm) | 3985 |
| Wheel space | The1stand 2ndshaft (mm) | 4500 |
| The 2ndand 3rdshaft (mm) | 1350 |
| Wheel track | Front shaft (mm) | 2035 |
| Middle and rear shaft (mm) | 1804 |
Chassis
Model | Model | Actros 3344 |
| Type | Second type |
| Manufacturer | Daimler AG |
Power
Parameter | Engine model | OM501LA.III/18 |
| Engine power/rev.speed (kw/r/min) | 320/1800 |
| Manufacturer | Daimler AG |
Weight
Parameter | Full-laden weight (kg) | 31450 |
| Shaft load | Front shaft (kg) | 7120 |
| Rear shaft (kg) | 24330 |
Rated loading mass of
extinguishing agent | Water (kg) | 4700 |
Running parameter
| Max. Speed (km/h) | ≥90 |
| Min. turning diameter (m) | ≤20 |
| Approaching angle (°) | 16 |
| Departure angle (°) | 9 |
| Braking distance (speed is 30(Km/h))(m) | ≤10 |
| Min. ground clearance (mm) | 290 |
| Max. Gradeability | ≥25% |
2. Main technical parameters in working status:
| Type | Item | Parameter |
main
performance
Parameter | Rated working height (m) | 34.5 |
| Rated load of elevating platform kg | 400 |
Overall dimension of elevating platform:
(L x W x H) mm | 2000×900×1100 |
| The max. lowering depth of elevating platform m | 3 |
| Max.working range (m) | 21 |
| The first boom section mm | 10328 |
| The second boom section mm | 10475 |
| The third boom section mm | 11425 |
| The forth boom section mm | 5500 |
| Outrigger span (longitudinal x transverse) (mm) | 6200×5800 |
| Luffing range (°) | -3 ~ 82 |
Working
speed | Boom operation time (s) | ≤135 |
| Outrigger extension time (s) | ≤30 |
| Slewing speed (r/min) | 0~1.5 |
Fire
fighting
performance | Fire
fighting
pump | Rated flow L/S | 50 |
| Rated pssure MPa | 1.5 |
| Water suction depthm | ≥7 |
| Time of drawing waters | ≤50 |
Fire
Water monitor | Rated flow L/S | 50 | 40 |
| Rated spray pssureMPa | ≤0.8 | ≤1 |
| Spray range m | ≥70 | ≥65 |
| Water monitor head swing range | UpDown | -45°~+90° | -35°~+65° |
| Left Right | ±90° | ±180° |
Tank
Fire
Water monitor | Rated flow L/S | 30 ~ 50 L/s |
| Rated spray pssure MPa | 1 |
| Spray range m | 65 |
1 YRS
