Lovol TE304 - Page 48

3.16.1.2 Gearbox failure and troubleshooting
Table 3-4 Gearbox failure and troubleshooting
Failure Cause Troubleshooting
1. Gear
engagement is
difficult, or
failure
(1) Clutch is not thoroughly released.
(2) Interlock link is too long
(3)
Shift block of gear lever seriously wears
out.
(4)
Engaging sleeve end face and gear end
face are worn out or damaged.
(1)
Troubleshoot it according related
means
(2)
Interlock link should be properly
shortened.
(3) Replace gear lever
(4) Repair of replace it
2.Auto gear
disengaging
(1) Interlock link is too short.
(2) Shift fork shaft groove seriously wear out.
(3)
Spring pressure of interlock pin is
insufficient.
(4)
The bearing on the gear shaft is worn out
to have the shaft inclined.
(5) Gear block spline wears out.
(1)
Interlock link should be properly
extended.
(2) Replace shift fork shaft
(3) Adjust or replace interlock pin spring.
(4) Replace bearing.
(5) Replace gear block
3. Disorder gear
engagement
(1) Gear lever knob seriously wears out.
(2)
Gear shifting guide plate groove seriously
wears out.
(3)
Shift fork and shift groove of meshing
sleeve wears out.
(4) Serious worn gear or spline.
(1) Replace or repair gear lever
(2) Replace gear shifting guide plate.
(3) Replace shift fork and meshing sleeve.
(4) Change the worn parts
4. There is
noise or knock
in gearbox.
(1)
Gear excessively wears out, tooth face is
peeling off or breakage.
(2) Bearing seriously wears out or is damaged.
(3)
Lubricant is insufficient or the lubricant
quality does not satisfy the regulation.
(4) Shaft spline and gear spline hole are worn.
(1) Replace gear
(2) Replace bearing.
(3) Change lubricant or fill it up.
(4) Change the worn parts
3.16.1.3 Rear axle or brake failure and troubleshooting
Table 3-5 Rear axle or brake failure and troubleshooting
Failure Cause Troubleshooting
1. Main drive
gives loud
noise.
(1) Bevel pinion bearing play is excessive.
(2) Gear engagement is abnormal.
(3) Bevel gear pair bearing or gear is
damaged.
(4) Differential bearing is worn out or stuck.
(5) Planet gear or shim is worn out.
(6) Differential bearing is worn out or
damaged.
(1) Readjust to specification
(2) Readjust to specification
(3) Replace bearing or gear
(4) Replace differential shaft
(5) Replace planet gear or shim.
(6) Replace differential shaft
2. Bevel pinion
bearing and
differential
bearing are too
hot.
(1) Preload is excessive.
(2) Lubricating is poor
(3) Bevel gearset pair play is too narrow.
(1) Readjust the bearing preload.
(2) Check the lubricant level, and add it if
necessary.
(3) Readjust the gear backlash.