Power Flow in Transmission - Neutral ZF
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Transcript of Power Flow in Transmission - Neutral ZF
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ZF 9S 1110
Range indicator switch Reverse light switch
Range selector switch
Vehicle speed
sensor
Range group
air pipes
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FEATURS OF ZF 9 S 1110
Multi speed gear box with planetary reduction.
9 forward speed synchromesh gears
An epicyclical reduction with air operated
Pneumatic range selection .
Pneumatic power assisted shift cylinder
Forced lubrication with integral oil pump driven by counter shaft.
Range selection indicator. Glows in High range
Reverse light switch.
Neutral switch for safety
Vehicle speed sensor sensed on 8 pole coupling flange
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ZF 9 S 1110 ECOMID
ZF ZHANRAD FRIEDRICHSHAFEN
(synchromesh)
1110 Nm Input torque
9 Forward gears +1 Reverse
(Load /crawler & Reverse with constant
mesh)
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IDENTIFICATON
Gear box number plate
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Gear ratios
Low range High range
Low 12.73 -
Rev 12.04 -
I 8.96 V- 2.54
II 6.37 VI- 1.81
III 4.71 VII- 1.34
IV 3.53 VIII-1.00
Torque 1110 Nm
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MAIN SHAFT
Sun
Gear
Planetary
Gear
Planetary
shaft
Ring
gear Planetary
carrier Engaging gear assy - splined
to the ring gear.
With synchro cones
& shifter sleeve,
Torque plate with synchro ring
fixed to the housing
Planetary
Out put shaft
Synchro ring fixed
to the Planetary out put shaft
Planetary
in Neutral
ZF
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MAIN SHAFT
Sun
Gear
Planetary
Gear
Planetary
shaft
Ring
gear Planetary
carrier
Torque plate with synchro ring
fixed to the housing
Planetary
Out put shaft
Synchro ring fixed
to the Planetary out put shaft
Planetary
in low range
ZF
Engaging gear, synchro cones
& shifter sleeve, splined
to the ring gear
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MAIN SHAFT
Sun
Gear
Planetary
Gear
Planetary
shaft
Ring
gear Planetary
carrier
Engaging gear assy synchro cones
& shifter sleeve, splined
to the ring gear
Torque plate with synchro ring
fixed to the housing
Planetary
Out put shaft
Synchro ring fixed
to the Planetary out put shaft
Planetary
in high range
ZF
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Low range
High range
R L
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Planetary
1. Annulus
2. Sun Gear
3. Planet Gears
4. Planet Gear Carrier
1 2
3
4
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Gear shift pattern
Double H shift pattern.
Rev,Crawler,1,2,3 & 4 Low range
After achieving the max speed at 4th gear driver should push the gear lever to his right side keeping gear lever in neutral position.
Then shift the gears
5,6,7 & 8 High range
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Range selection procedure
Start the engine and keep in idle speed
Push the gear lever to the LH side and watch for the range indicator Glow
UPWRAD SHIFT
Depress the clutch fully
Select the LOW speed and engage
Release the clutch gradually.
Accelerate gradually
After attaining the normal speed depress the clutch and shift to I speed.
In the similar manner progressively shift up to IV speed.
Now bring the gear lever to neutral position and push to RH side with little more effort.
Now HIGH range is in selection with the Range indicator OFF
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Range selection procedure.
Now shift to V speed ie to the I speed position.
Progressively shift up to VIII speed.
DOWNWARD SHIFT
To shift downward with reduced vehicle speed with application brake and depressing the clutch shift down to VII speed.
Progressively shift up to V speed
Now to change in to low range
Keep the gear lever in neutral and push towards LH side with little more effort.
Now the LOW range is in selection with indicator ON.
Depress the clutch and engage IV speed.
Now gradually shift down up to I speed
Note : Range selection should be done while driving the vehicle in IV & V speed only.
Load gear L and Reverse shall be engaged only in low range with vehicle at zero stop
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Operating temperature
Operating temperature
It is important that the transmission operating temperature does not exceed 120C
for an extended period of time. Operating temperatures above 120 C cause
breakdown of the oil and shorten transmission life. The following conditions in any
combination can cause operating temperatures of over 120 C.
Operating consistently at road speeds under 32Km/h
High engine RPM
High ambient temperature
Restricted air flow around transmission
Exhaust to close to transmission
High horsepower, overdrive operation
High power PTO operation for extensive periods while stationary
High operating temperatures may require more frequent oil changes and/or
fitment of a cooler.
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270+/- 1.5 mm
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Power shift cylinder
352 mm
352.00 mm
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352 mm
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THANK YOU
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Power flow in transmission - Neutral
Main housing
Cyl.roller brg Top Cover
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Power flow in transmission LOW range
Main housing
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Power flow in transmission High Range
Main housing
Top Cover
Planetary housing