SERVICE
18
18
Fault Finding
A1461-1
Symptom
1
Trencher operates jerkily.
2
Trencher operates slowly.
3
Insufficient digging capacity.
4
Trencher runs in wrong direction.
5
Hydraulic oil leaks.
Remedy
Allow system to warm up
Bleed system
Check
Loader Operator Manual.
Check system flows and pressures.
See your JCB Distributor, request flow
and pressure checks.
Change hydraulic filter.
See your JCB Distributor, request flow
and pressure checks.
Reduce digging load because load
exceeds capacity of system.
Check relief valve operating pressure.
Change hoses around.
Refit and reseal motor.
Tighten or replace as needed.
Tighten or replace as needed.
Possible Fault
a
Hydraulic oil is cold.
b
Air in lines
c
Loader hydraulic pump or sys-
tem faulty
a
Restriction in lines, couplers or in
loaders hydraulic system.
b
Worn, damaged or too small a
hydraulic pump.
c
Loader hydraulic oil filter
blocked.
a
Hydraulic pump in loader or
hydraulic motor in trencher are
undersized.
b
Excessive load.
c
Relief valve operates at too low a
pressure.
a
Hoses incorrectly connected
a
Hydraulic motor seals are worn or
damaged. Loose fittings on
hoses or motor.
b
Loose fittings on hoses or motor.
c
Hoses looses or damaged.
Summary of Contents for XR Series
Page 3: ......
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Page 10: ...SAFETY 5 5 Decals cont d A1461 1...
Page 24: ...SERVICE 19 19 A1461 1 C021980 15 14 8 13 17 9 10 12 6 6 16 7 11 2 3 4 1 0882_1...
Page 29: ......
Page 48: ...MAINTENANCE 19F 19F A1461 1 C021980 15 14 8 13 17 9 10 12 6 6 16 7 11 2 3 4 1 0882_1...
Page 53: ......
Page 71: ...SERVICE 19G 19G A1461 1 C021980 15 14 8 13 17 9 10 12 6 6 16 7 11 2 3 4 1 0882_1...
Page 76: ......
Page 95: ...SERVIZIO 19L 19L A1461 1 C021980 15 14 8 13 17 9 10 12 6 6 16 7 11 2 3 4 1 0882_1...
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Page 119: ...SERVICIO 19S 19S A1461 1 C021980 15 14 8 13 17 9 10 12 6 6 16 7 11 2 3 4 1 0882_1...