he cantilever tip of the cantilever is extended

Mobile crane boom , boom box structure ( telescopic boom ) and the lattice structure cantilever ( patch cantilever ) . Mobile crane boom picture , lightweight, high -tension steel plates are used. High tensile steel , manganese , nickel, chromium and molybdenum strengthen low-carbon low-alloy and high welding, machining , excellent corrosion resistance . A boom, hanging under its own weight and the bending moment of goods , the compression force , the rotating lateral load , wind load and other considerations is designed generally to the rated working load appropriate electric platform stacker strength can be maintained. However, the shock load ratio exceeds the design load conditions and bending damage , may arise.
box structure cantilever ( telescopic boom )
Hydraulic cranes and other off-road truck cranes and boom , boom box- type structure strength . To use. Internal cantilever , hydraulic cylinders and cantilever retractable cable Luo - group or chain to have a combination of telescopic mechanism . Cantilever retractable cable Luo - group or chain with something , retractable electric pallet jack telescopic boom cylinder use , so that after the boom is telescopic . Typically , 2 ? 6 section telescopic hydraulic , 2 , 3 , 4 and sequential turn retractable telescopic manner scalable layers while simultaneously stretching mode . In addition, the simple way retractable pin mechanism sky . Simple sky pin mechanism , usually in different ways , a book each sliding inside a hydraulic cylinder cantilever boom fixing pin , while the telescopic boom so that the lock sequence method .
Most of the box structure cantilever , the cantilever tip of the cantilever is extended. Grants can arm mounting . Auxiliary boom installed , orientation and subsidies if the mounting angle boom boom boom of less than 45 ° is necessary . Raise performance, and subsidies boom boom tilt angle mounting angle separately. Link cantilever equipped with a coarse stuff , subsidies cantilever mounting angle (tilt angle ) and the longitudinal direction of the cantilever within 5 ~ 45 ° hydraulic cylinders , etc. can be set freely

Manual Scissor Scissor Pallet Truck consists of the following five components:

Manual hydraulic pallet trucks consists of the following five components:

Handle a small lever handle is small manual hydraulic pallet trucks controlled state . ;

2 tiller steering tiller is lifting frame body with the body , down and walking lever. Tiller back and hand pallet truck forth up and down the pressure , the body can slowly rise ; small teeth clenched on the tiller , can decrease the body ; pull the tiller forward and cargo vans can walk ;

From 3 hydraulic lifting system sealed up the system can meet most lifting requirements. Pump cylinder electric pallet trucks mounted on heavy-duty protective seat, chrome cylinder , piston galvanized, low control valve and pressure relief valve to ensure safe operation and manual hydraulic pallet trucks extend the service life ;

4 front and rear wheels and wheel bearing rollers are made ??of durable nylon , rolling resistance is small. Wheels fitted with sealed bearings , flexible operation ;

5 frame body and the body frame body and the body is the use of torsional steel welded forks made ??from high tensile steel channel , wedge-shaped tines made ??of round , easy to insert the tray without damaging the tray guide guide wheel forks smoothly inserted into the tray .

tiller steering tiller is lifting frame body with the body

tiller steering tiller is lifting frame body with the body , down and walking lever. Tiller back and forth up and down the pressure , the body can slowly rise ; small teeth clenched on the tiller , can decrease the body ; pull the tiller forward and cargo vans can walk ;

From 3 hydraulic lifting system sealed up the system can meet most lifting requirements. Pump cylinder electric order picker mounted on heavy-duty protective seat, chrome cylinder , piston galvanized, low control valve and pressure relief valve to ensure safe operation and manual hydraulic pallet trucks extend the service life ;

4 front and rear wheels and wheel bearing rollers are made ​​of durable nylon , rolling resistance is small. Wheels Manual drum Stacker fitted with sealed bearings , flexible operation ;

5 frame body and the body frame body and the body is the use of torsional steel welded forks made ​​from high tensile steel channel , wedge-shaped tines made ​​of round , easy to insert the tray without damaging the tray guide guide wheel forks smoothly inserted into the tray .

Failure hand pallet trucks may arise , analysis and troubleshooting

Failure hand pallet trucks may arise , analysis and troubleshooting
Fault: Lifting height below standard ;
Cause: The hydraulic oil is not enough ;
Remedy: Unplug the hydraulic hand truck tumultuous filling hole rubber stopper , injection by filtration of hydraulic mooring to stop going to overflow and Reattach tumultuous plug. Note : At this point , the goods are again in the bottom position.
Failure II: lever handle fork does not rise ;
1 working oil viscosity counter balance stackers is too large or injection work poise ;
2, working parked there impurities, so that the inlet valve does not close tightly ;
3 , unloading valve push Villa Park and into contact with too tight , the inlet valve is open moor ;
4 running boards , put the oil valve is not adjusted .
Remedy:
1 , replacement of oil or exclude impurities ;
2, the adjusting screw .
Failure three: do not drop the fork rise ;
Reason:
A piston rod partial load or overload due to excessive permanent deformation or seals killed ;
2 , partial load or overload effect , causing distortion components , moving parts turning serious friction tight ;
3, the rotating parts is not a regular refueling and killed , often highly placed , exposed parts of the piston rod rust ;
4 , failed to break open the haunted unloading valve stem .

Failure Four: Rise and fall jack lever handle and the handle has a child by playing physical phenomena or top lifting slightly declined.