3
CF65/75/85 series Pneumatically assisted gearbox control (Servoshift)
DIAGNOSTICS
2-1
2. PNEUMATICALLY ASSISTED GEARBOX CONTROL
(SERVOSHIFT)
2.1 FAULT-FINDING TABLE
SYMPTOM: ENGAGING GEARS IS HEAVY
Possible cause Remedy
Servoshift unit inoperative Inspect air pipes
Servoshift unit leaking air internally Check air seals in unit
Mechanical problem See “Mechanical gearbox control” and
“Mechanical gearbox” fault-finding tables
SYMPTOM: GEARBOX JUMPS OUT OF GEAR
Possible cause Remedy
Selector valve in Servoshift unit defective Replace Servoshift unit
Mechanical problem See “Mechanical gearbox control” and
“Mechanical gearbox” fault-finding tables
ᓻ 200337
1
https://www.truck-manuals.net/