Nilfisk-Advance Captor 4300, Руководство по ремонту механических устройств

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18 - FORM NO. 56043094 / Captor
™
4300, 4800, 5400 / CR 1100, 1200, 1400
HYDRAULIC SYSTEM
ACCESSORY PUMP ASSEMBLY REMOVAL
CAUTION!
Disconnect the battery before servicing.
1 Remove right side engine panel.
2 See Figure 2. Disconnect the (3) accessory pump Outlet Hoses (M, N & O) (plug & cap).
3 Remove the (3) tee fittings from the pump housing assembly and plug. Note: The fittings need to be removed to access the right housing mounting
bolt.
4 Remove the two-pump flange Mounting Bolts (P) and separate the accessory pump assembly from the propulsion pump. Note: Be prepared
to collect oil loss when the pump is pulled apart.
5 Raise the pump assembly above the height of the oil reservoir before disconnecting the large pump assembly inlet Feed Hose (Q) to prevent
excessive oil loss from the reservoir (plug & cap). Service Note: When removing the accessory pump assembly to remove the propulsion
pump (create the necessary service working clearance). Leave the large hydraulic feed hose on the accessory pump attached. No need
to plug and cap it, just tie it safely to the chassis above the oil reservoir. This will prevent the unnecessary need to disconnect the hose and
eliminate any leakage of hydraulic oil.
PROPULSION PUMP REMOVAL
CAUTION!
Disconnect the battery cables then remove the battery before servicing.
1 Remove the hydraulic oil cooler, engine radiator and the accessory pump assembly by following the three separate sets of instructions in this
manual section.
2 See Figure 2. Remove the Sense Switch (R) secured with the Screw (S) from the Lever Weldment (T). Note: Do not lose the small Bushing
(U) and Washer (V).
3 Disconnect the Ball Joint (cable rod end) (W) from the Lever (T).
4 Remove the lever weldment from the propulsion pump shaft secured by hardware items (X & Y).
5 Disconnect the (4) Hoses (Z, AA, AB & AC) as shown from the propulsion pump (plug and cap).
6 Remove the (2) Hex HD Screws (AD) that fasten the pump assembly to the engine bell housing. Technical Note: Reference Figure 3, this
illustrates a Special Tool (AE) that a mechanic will need to fabricate to remove the bottom pump retaining screw.
7 To complete the removal of the pump from the machine pull straight back to separate it from the engine flywheel coupler.
8 To reassemble follow the above steps in reverse order and read the service notes shown below if the engine will not start or machine creeps
when drive pedal is in neutral.
Service Note 1: If engine will not start see captor Quick Start Service Manual, engine starter will not crank troubleshooting flow chart. The pedal
sense switch is probably out of its neutral dead band setting and needs to be reprogrammed. Follow the foot pedal neutral and dead band adjustment
programming instructions shown in this manual’s sense switch replacement section.
WARNING!
Jack up the rear drive tire before starting machine to check for possible drive wheel creep, linkage out of adjustment.
Service Note 2: If machine creeps without operator pedal input see Hydroback Drive Pedal Neutral Adjustment in this manual to re-set neutral.