JLG 3507 Service Manual page 63

Problem
5. Transmission overheating
(oil above 120° C (248° F)).
6. Grinding or "clunking" noise
from transmission.
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
Cause
1. Low oil level.
2. Clogged radiator.
3. Transmission filled with incorrect
oil, or oil contaminated.
4. Excessive "roading."
5. Restriction in oil cooler hoses.
6. Pump worn or damaged.
7. Engine thermostat stuck.
1. Oil level too low.
2. Transmission filled with incorrect
oil.
3. Incorrect clutch engagement.
4. Internal damage.
5. Broken diaphragm (flex plate).
6. Loose diaphragm (flex plate)
mounting capscrews.
Transmission:
Remedy
1. Fill transmission to correct level
®
with Mobilfluid 424 ISO
Grade 46. Refer to Section 2.4,
"Fluids, Lubricants and
Capacities."
2. Remove debris from the
radiator.
3. Drain transmission and fill to
correct level with Mobilfluid 424
ISO Grade 46. Refer to Section
2.4, "Fluids, Lubricants and
Capacities."
4. Stop and idle the engine.
5. Replace cooler hoses.
6. Repair or replace pump
assembly.
7. Replace engine thermostat.
Refer to Section 7.4.2,
"Thermostat Replacement."
1. Fill oil to correct level. Refer to
Section 2.4, "Fluids, Lubricants
and Capacities."
2. Drain transmission and fill to
correct level with Mobilfluid 424
ISO Grade 46. Refer to Section
2.4, "Fluids, Lubricants and
Capacities."
3. Refer to Section 9.12.3,
"Transmission Solenoid Valves."
4. Repair or replace parts as
needed.
5. Replace diaphragm (flex plate).
Refer to Section 6.5.1,
"Transmission Removal."
6. Tighten capscrews.
Courtesy of Crane.Market
®
®
6.9