Transmission Line Stringing Equipment Hydraulic Puller Cooling
Method Forced Air Cooling
Structure parameter Pulling wheel diameter: 600mm Groove number: 9 Max diameter of applicable pulling rope: 26mm Weight: 6600kg Overall dimension (length*width*height): 4800*2350*2470 mm Hoisting mode: single point | Engine Type: Cummins 6CTA8.3-C260 Model: Straight type six-cylinder pressurizing four-stroke diesel
engine Cylinder diameter * stroke: 114*135 mm Total air output: 8.3 L Rated speed: 2200 r/min Rated power (one hour power): 194 kw Max torque: 1135Nm Rotary speed when maximum torque: 1500 r/min Fuel consumption rate (bench test): 238g/kw.h Cooling method: forced air cooling |
Electric system System voltage: 24V Storage battery: 24V electric starting |
Main technical performance parameter Max intermittent pulling force: 150kN Max continuous pulling force: 120 kN Corresponding speed: 2.5 km/h Max continuous tractive speed: 5 km/h Corresponding pulling force: 60 kN | Drive system Closed type circuit hydraulic drive system adjusts speed through
hydraulic plunger pump with bi-directional variable displacement,
reduces speed through planet gear and drives pulling wheels to
rotate in positive and negative directions through the first level
gear terminal drive. Cooling mode: forced cooling |
Main pump Model: sloping cam plate bi-directional plunger pump (German
Rexroth) Type: A4VG250EP4DT1/32R-NSF02F021 Speed reducer Model: two-grade planet gear reduction (German Rexroth made by
Beijing sole investment plant) Type: 310 L2 Reduction ratio: 21.8 Brake response pressure: 2.5Mpa | Auxiliary oilway hydraulic system Open type constant displacement throttle speed governing hydraulic
system is supplied oil by gear pump and controls oil liquor’s
cooling and hoisting tail bracket’s lifting of the whole hydraulic
system through hand operated direction valve and ball valve. System working pressure: 12Mpa Duplex gear pump: 1PF2G2-4X/016+014RR20MRL Fan motor: GM5-12-1FE13-S-20 Hoisting motor: J2K-305 Sleeve extension oil cylinder: 3TG110×250 Radiator: B5024 |
Hydraulic motor Model: inclined-axis bi-directional constant displacement tapered
plunger motor (German Rexroth) Type: A2FE180/61W-VZL106 |
Safe operation rules
Only those who are familiar with safe operation rules and
maintenance requirements of the type puller and receive
professional training are allowed to operate the puller.
1. Both operators of tensioner and puller shall communicate each
other to avoid that puller begins to work under operating condition
of tensioner not tension laying and cause serious accident.
2. When puller works, it is prohibited that operators give up
operating or leave puller.
3. When operating puller, you shall control handle and adjust
pressure smoothly and steadily and avoid over-violent and quick
force and brutal operation.
4. Absolutely avoid using backing the machine to brake.
5. After starting puller, check the meter whether it operates
normally; stop to check if abnormal.
6. When the puller works, continuously observe each pointer; water
temperature of engine shall be not more than 95℃; Hydraulic oil
temperature shall be not more than 85℃; Tail bracket hoisting
pressure shall be not more than 12Mpa; Brake pressure shall be not
less than 3.5Mpa and not more than 6Mpa. Otherwise, the machine
shall be stopped immediately for check.
7. Pressure of each safety valve shall be preset, avoid random
adjustment by all means! If accidents, for example, puller fails to
work, are caused arising from adjusting valve without permission,
it will bring you much trouble and loss.
8. When puller operates, rotary speed of engine keeps above
1800r/min to maintain higher power and prevent overheating of
hydraulic oil.
9. Under operating condition of driving, to change driving
direction of puller shall be carried out after pulling wheels stop
completely.
10. When puller operates, prohibit filling oil and repairing; when
needing repairing, make engine flame out, in addition to reliable
brake.
