Can a John Deere 644e wheel loader have transmission problems?

Discussion in ‘ Wheel Loaders ‘ started by Jerbearbroth, Sep 20, 2011 . I have a 1988 John Deere 644E wheel loader that has developed a transmission problem. When the machine is shifted from either forward to reverse or vice versa, it takes up to 3 seconds for the transmission to engage.

What are the specs on a John Deere 644b?

Specifications John Deere 644B Rear and front axle. oscillation Gang torque Alternator supplied. amperage Forward and reverse max. speed Operational voltage Number of forward and. reverse gears Cylinders number in. powertrain Engine capacity Displacement Loader operation Comparisons

How long does it take a John Deere wheel loader to change gears?

I have a 1988 John Deere 644E wheel loader that has developed a transmission problem. When the machine is shifted from either forward to reverse or vice versa, it takes up to 3 seconds for the transmission to engage. Also, when it is traveling, and is shifted from 1st to 2nd, it takes up to 7 seconds to change gears.

How tall is a John Deere wheel mounted loader?

Wheel-Mounted Loader. Construction Machinery. Wheel-Mounted Loader John Deere 644B 211.9 l. 66.2 l. 20.8 l. 46.4 l. 36.9 l. 22.7 l. 23.7 l. 8.7 l. 1. Length with bucket on ground level 3. Height to cab upper part 4. Wheelbase 5. Clearance 6. Hinge axis maximum height 8. Radius at maximum lifting and unloading 7.

How many flywheel horsepower does John Deere wheel loader have?

*Net engine flywheel horsepower is for. an engine equipped with fan, air cleaner, water pump, lubricating oil pump, fuel pump, alternator, and muffler. The gross engine power is without fan. Flywheel power ratings are under SAE standard conditions of 500-ft. (150 m)

Is the 544g loader manual a permanent part?

THIS MANUAL SHOULD BE CONSIDERED a permanent part of your machine and should remain with the machine when you sell it. MEASUREMENTS in this manual are given in both metric and customary U.S. unit equivalents. Use only correct replacement parts and fasteners.

Is the John Deere 544g out of warranty?

In some circumstances, John Deere also provides field improvements, often without charge to the customer, even if the product is out of warranty. Should the equipment be abused, or modified to change its performance beyond the original factory specifications, the warranty will become void and field improvements may be denied.

Why is my John Deere transmission not working?

If the transmission oil is too cold, it can result in the machine not working correctly. In cold weather it is advised that the engine be allowed to warm up before the machine is used. Transmission issues should be diagnosed by a John Deere repair retailer.

What’s the operator manual for a 544g loader?

OPERATORS MANUAL 544G, 544G LL, and 544G TC Loaders 624G Loader 644G Loader (Serial No. 557739-) OMT159816 Issue G6 English John Deere Dubuque Works OMT159816 Issue G6 (Mark old manual OMT154907 L4 for machines up to Serial No. 557738)

How does a hydraulic system work on a loader?

A powered hydraulic system (or circuit) provides the necessary power to lift not only the load, but also the weight of the bucket and arms. When there are problems with the hydraulic power, there are three main components to inspect for trouble: the hydraulic pump, the high-pressure hydraulic lines and the hydraulically actuated piston.

When do you need to troubleshoot John Deere hydraulics?

The moving parts of the hydraulics will wear out over time and will need to be maintained and repaired to ensure optimal performance. When the equipment malfunctions, you will need to troubleshoot to minimize downtime and interruption of activities. How Do I Troubleshoot My John Deere?

Why is my hydraulic system not working after a fluid change?

Leaking snotty looking old fluid, while dipstick has clear new fluid. ~Idled engine for 15 min and it leaked fluid. Saw drip originating at throttle body pretty steadily which makes no sense so it has to be coming from somewhere else above but I’m not familiar with the hydraulic system enough to know what’s what.

What to do when your loader stops working?

The loader stopped working at all. The first thing I did was check the output pressure of the pump. It was only about 800 PSI. Next thing I did was to try adjusting the output pressure with the adjusting screw on the port on the bottom of the destroke control valve on the hydraulic pump.

How much does a John Deere wheel loader weigh?

Operating Weight: 13 123–14 105 kg (28,931–31,097 lb.) Please try different criteria or clear filters to start over.

How many RPM does a John Deere tractor pull?

Terry,I have a JD4400 HST – before seeing your post, I had never really used the high range much. This morning I decided to see if my tractor might have the same problem you describe. Bottom line – it EASILY pulls full rated rpm’s (2,700 rpm) in all 3 ranges. In fact, it will pull 3,000 rpm (as high as the tach will go) in high range.

What kind of transmission does a John Deere 4300 use?

One of the comments I received on the message board was from a 4300 owner with the synchreverser transmission, instead of the hydro, who claimed he had full travel speed at the fully rated rpm. Even according to Deere’s specs the hydro transmission loses about one and a half horsepower over the synchreverser.

How does the rear shift lever work on a car?

The shift linkage assembly connects the rear shift lever (at the transmission) to the foot-operated forward shift le- ver. The shift linkage does not require adjustment unless linkage is replaced or the transmission gears do not engage properly. 1. Pull the Main-Fuse as described in Chapter Nine. 2. Loosen the two shift rod locknuts (A, Figure 3).

What to do if your shifter levers are not returning?

Undo the screws you can see on the outside and take the top of the shifter off (nothing will pop out unless you pick at the mecahnism), pick out anything obvious (being careful not to dislodge anything that may pop out), squirt with some flavour of lube, reassemble, whizz up and down the gears a few times to work the lube in and all’s well.

Do you need to adjust the shift linkage?

Shift Linkage Adjustment The shift linkage assembly connects the rear shift lever (at the transmission) to the foot-operated forward shift le- ver. The shift linkage does not require adjustment unless linkage is replaced or the transmission gears do not engage properly.

How to change a Lokar automatic transmission lever?

These instructions are for customers who already have a Lokar automatic transmission shifter and would like to change to a taller, shorter, or different style shifter lever. Step 1: Make sure the shifter is in “PARK”. Remove the shifter knob and release button from the shifter lever. Shifters manufactured from 1995 to Present: Lever

When do you notuse thread locking compound on shifter?

DO NOTuse thread locking compound on the shifter lever or knob. On shifters manufactured from 1995 to present, turn the shifter knob until the release button is flush with the body of the knob. Do not turn it further than flush. If the shifter does not lock in “PARK”, loosen the knob or the lever one turn.

How do you install a shifter on a Lokar?

Apply a generous coat of synthetic multi-purpose grease to the inside of the shifter body. Remove the lock dog shaft spring from your old inner rod and install it onto the new inner rod. The lock dog shaft spring is slightly tapered; make sure the smaller end is up (towards the shifter knob end) on the inner rod. Shifter Assembly

How does loosing Fel and Hitch fluid together work?

Loosing FEL and hitch fluid together is exactly what will happen as that fluid supply leaves the flow divider in MCV then goes to hitch then remotes before returning to transmission housing. The set up you have for supplying loader is not ideal, but it works for you!!

What happens when you use a loader on a tractor?

Prolonged use of loader may lead to the hydraulic system getting very hot 90 to 110geg C !!!

What should I do if my hydraulic system is not working?

This may be assisted by removing the hydraulic tank etc. Don’t forget to drain axles as water may be in the bottom of them. Over time with use the fluid in the cylinders will generally be replaced with other fluid, mixing and diluting the contaminants.

Can a John Deere 644e wheel loader have transmission problems?