jcb JS300 Service Manual page 924

Travel Linearity
The machine should have an approach A of 5 metres (16.5
ft) and a travel distance B of 20 metres (65.62 ft).
1 Approach the reference line C and adjust the position
of the track shoe/travel direction against the
reference line in the first 5 metres (16.5 ft).
2 Without adjustment allow the machine to travel 20
K Fig 11. ( T E-263)
metres (65.62 ft).
3 Measure the amount of deviation X after 20 metres
(65.62 ft) between the reference line and track shoe.
4 Repeat the
K Fig 12. ( T
E-263).
C
A
Fig 11.
X
B
Fig 12.
E-263
procedure in reverse.
X
B
C
A
T041430-1
Hydraulic System Fault Finding
Test 008: Testing Machine Cycle Times
T041430
9813/5100-1
Section E - Hydraulics
E-263