BATTERY AND WIRING 1P9495 - Caterpillar

Table 1
Required Tools
Part Number Part Description Qty
6V-7830 Tetragauge Group 1 The signal network can be easily checked. Start the engine and warm up the hydraulic oil. Run the engine at LOW IDLE for this check.
Illustration 1 g00838863
The tap is located behind the access door on the right side of the machine.
D6N with FTC
CBF1-299
CCG1-399
ALH1-734
CBJ1-399
ALR1-634
(1) Signal line pressure tap
(2) Control valve
Illustration 2 g01242940
D6N with FTC
CBF300-Up
CCG400-Up
ALH735-Up
CBJ400-Up
ALR635-Up
Illustration 3 g01242947
D6N with differential steering
(S/N: AKM1-1234)
(S/N: ALY1-1334)
(S/N: CCK1-499)
(S/N: CBL1-399)
(S/N: CCS1-399)
Illustration 4 g01241521
D6N with differential steering
(S/N: AKM1235-1793)
(S/N: ALY1335-1887)
(S/N: ALY1889-2065)
(S/N: CCK500-701)
(S/N: CBL400-Up)
(S/N: CCS400-Up)
Illustration 5 g01258381
D6N with differential steering
(S/N: AKM1794-Up)
(S/N: ALY2066-Up)
(S/N: ALY1888)
(S/N: CCK702-Up)
Attach the tetragauge to signal line pressure tap (1). Operate each control lever in the following order:1. Ripper2. Angle3. Tilt4. LiftPut each cylinder into a fully stalled condition. Watch the pressure gauge. Maximum system pressure of 25000 500 kPa (3626 75 psi) should be seen for all circuits.Note: Do not keep any cylinder in a stalled condition for more than 10 seconds. Do not return any cylinder to a stalled condition within 30 seconds of the prior stalled condition.Secondary Resolvers Test
If two or more control valves next to each other fail to work normally, the problem may be in the secondary resolver of the malfunctioning control valve that is closest to the pump supply. The secondary resolver of this control valve is allowing signal pressure from any other control valve to leak through a signal passage to the tank.One of the following conditions could also cause one of the control valves to fail:
the ball is missing.
there is debris that is preventing the ball from seating properly.
the ball is damaged or the seat is damaged.Operate the valves in order to determine the malfunctioning valve that is closest to the pump. The following list proceeds from the valve that is farthest from the pump to the valve that is closest to the pump:1. Ripper2. Angle3. Tilt4. LiftPrimary Resolver versus Secondary Resolver
If a valve section fails to work in at least one direction, the primary resolver or the secondary resolver in that control valve may be bad. To locate the bad resolver, perform the following check.Stall the attachment that is farthest away from the pump. This will force the ball in the secondary resolver of the suspect valve to seat on the side away from the drain. This eliminates the possibility of a leak on the drain side of the secondary resolver. At the same time, operate the suspect valve. If the problem is not corrected in the suspect valve, the primary resolver may be bad.If the primary resolver is bad, the pressure loss is affecting the operation of the flow control spool in the valve body. The force that is needed to open the valve completely is insufficient. Therefore, the attachment has a slower response.Normally, if an attachment is slow in both directions, the problem is in the secondary resolver. If an attachment is slow in one direction, the problem is typically caused by a bad primary resolver.A malfunctioning valve section might be caused by one of the following items:
misadjusted