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Factory Direct Tractors
Front End Loader
Trouble
Possible causes
Solution
Slow or uneven lift
1. Low hydraulic fluid level.
Check and replenish
2. Cold hydraulic fluid.
Allow hydraulic system to warm
up operating temperature.
3. Engine R.P.M. too slow
(hydraulic pump R.P.M. too
slow).
Increase engine speed to obtain
satisfactory loader operation.
4. Weight in bucket exceeds
maximum specified loader
capacity.
Reduce material load.
5. Quick disconnect coupler
restriction or coupler “Flow
Checks”
Check coupler connections for
evidence of restriction.
6. Hydraulic hose or tubeline
restriction
Check hoses and tubelines for
evidence of restriction.
7. Lifting cylinder piston
assembly leakage.
Check cylinders for leakage.
Repair as need.
8. Control valve leaking
internally.
Replace control valve.
Lifting and/or bucket cylinders
operate in wrong direction
relative to control vale lever
position.
Hydraulic hoses connected
incorrectly.
Correct hydraulic hose
connections.
Loader drops with control valve
spool in “centred” position
Note: A gradual drop over an
extended period of time is a
normal condition.
1. Cylinder piston assembly
leakage.
Check cylinders for leakage.
2. Control valve internal
leakage.
Replace control valve.
Control valve spools(s) will not
return to centred position.
1. Control lever linkage binding.
Determine origin of binding and
repair.
2. Control valve spool centreing
is broken.
Replace centreing spring.
3. Control valve spool binding in
valve body spool bore.
Disassemble valve for
inspection and repair.
Bucket cutting edge wear is
uneven side to side
Bucket is not level to ground.
Check rear tyre inflation and
adjust to level bucket to ground.
Abnormal sound
1. Loose or missing nuts and
bolts
Tighten loose ones and replace
missing ones.
2. Insufficient lube oil causing
dry friction.
Add oil when necessary
3. Incorrect lube oil in use or
impurity in oil.
Replace with the oil of correct
specification.
12-2
Summary of Contents for ZB25
Page 1: ...Factory Direct Tractors Operator s Manual ZB25 ZB35 ZB45 ...
Page 2: ...Factory Direct Tractors ...
Page 30: ...Factory Direct Tractors Front End Loader Safety ROL 350KG S 25 ...
Page 31: ...Factory Direct Tractors Front End Loader Safety S 26 ...
Page 32: ...Factory Direct Tractors Front End Loader Safety S 27 ...
Page 33: ...Factory Direct Tractors Front End Loader Safety S 28 ...
Page 34: ...Factory Direct Tractors Front End Loader Safety BL25 S 29 ...
Page 61: ...Factory Direct Tractors Technical Maintenance 7 6 7 6 Recommended oil ...
Page 91: ...Factory Direct Tractors Front End Loader THIS PAGE INTENTIONALLY BLANK ...
Page 92: ...Factory Direct Tractors Front End Loader 13 1 13 1 BUCKET ASSEMBLY 13 Loader Parts ...
Page 94: ...Factory Direct Tractors Front End Loader 13 3 13 2 TOOL CARRIER ASSEMBLY ...
Page 96: ...Factory Direct Tractors 13 5 Front End Loader 13 3 ARM ASSEMBLY ...
Page 98: ...Factory Direct Tractors Front End Loader 13 7 Front End Loader 13 4 MOUNTING KIT ASSEMBLY ...
Page 101: ...Factory Direct Tractors 13 10 Front End Loader THIS PAGE INTENTIONALLY BLANK ...
Page 111: ...Factory Direct Tractors ...