3944946 CLAMP Caterpillar parts
M315D, M316D
Rating:
Alternative (cross code) number:
CA3944946
394-4946
3944946
CA3944946
394-4946
3944946
Weight: 0.04 pounds 0 kg.
WHEELED EXCAVATOR,
Number on catalog scheme:
For full view, you need register
Information:
CHECKING VOLTAGE DROOP RHEOSTAT
1. No. 7 wire.K. Faulty voltage droop rheostat 1. Disconnect the No. 7 wire (1) from the regulator terminal and check the operation of the rheostat as shown. The ohmmeter should show an even change when the rheostat control is moved from 100 to 0. The maximum resistance should be the value stamped on the rheostat.2. With the ohmmeter connected to the rheostat, move the arm from maximum to minimum resistance positions and observe the variation in meter reading.L. Incorrect saturable reactor taps 1. Check the saturable reactor taps with the table. Reconnect to the proper taps if an incorrect connection has been made.M. Leading power factor load 1. A leading power factor load will furnish excitation to the generator. This causes the generator voltage to tend to rise, and the regulator acts to reduce the exciter output in an effort to have only enough excitation at the generator to produce required voltage while supplying power to the connected load. If the load has an extremely leading power factor, there may be more excitation furnished to the generator than can be compensated for by the regulator, and the AC voltage will rise.2. Leading power factor can be caused by an excessive amount of capacitors connected to the load, a lightly loaded synchronous motor, or an induction motor being driven by its load.3. Leading power factor can be corrected by disconnecting capacitors, adding load or reducing the excitation of synchronous motors, and arranging the control of induction motors so that they do not generate back into the AC power source.IV. AC Voltage Fluctuates
A. Engine speed fluctuates 1. Repair governor.B. Load fluctuates 1. Fluctuating voltage cuased by changes in load is not a generator malfunction. The sequence of variation of different parts of the load should be checked from the viewpoint of reducing the number of simultaneous load changes.C. Loose connection 1. Check that all connections are tight.D. Incorrect exciter brush position 1. Mark the brush mounting assembly and bearing cap to indicate the initial brush position.2. Loosen the setscrews (1) and (2) and move the brush mounting assembly against the direction of armature rotation the width of one commutator bar. Lock the setscrews.
CHANGING EXCITER BRUSH POSITION
1. Setscrew. 2. Setscrew. One setscrew locks in a hole drilled in the bearing cap. Care must be exercised that this screw does not slip back into its original location. If this does happen, disconnect the A1 and A2 leads at the brush mounting assembly, rotate the brushes one quarter turn, and reconnect the leads. This will place both setscrews on smooth surfaces.Start the engine and observe the AC voltage. If it still fluctuates, move the brushes an additional small amount to minimize the fluctuation. Do not move the brushes so far that sparking becomes excessive.3. A more exact method of determining the exciter brush neutral position is to check the exciter output for both directions of rotation. To perform this test, the exciter can be checked in place for normal
Caterpillar parts catalog:
Parts clamp Caterpillar catalog:
3944951
CLAMP AS
M313D, M315D, M316D
M313D, M315D, M316D
3403049
CLAMP
M313D, M315D, M316D, M317D 2, M318D, M318D MH, M322D, M322D MH
M313D, M315D, M316D, M317D 2, M318D, M318D MH, M322D, M322D MH
3403050
CLAMP GP-HYDRAULIC LINES
M313D, M315D, M316D, M317D 2, M318D, M318D MH, M322D, M322D MH
M313D, M315D, M316D, M317D 2, M318D, M318D MH, M322D, M322D MH
3937898
CLAMP
314D CR, 314D LCR, 314E CR, 314E LCR
314D CR, 314D LCR, 314E CR, 314E LCR
4186286
CLAMP GP-HYDRAULIC LINES
312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 320D, 320D GC, 320D L, 323D L, 324D, 324D L, 324D LN, 325D, 326D L, 329D, 329D L, 336D2, 336D2 L, 340D2 L
312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 320D, 320D GC, 320D L, 323D L, 324D, 324D L, 324D LN, 325D, 326D L, 329D, 329D L, 336D2, 336D2 L, 340D2 L
4186282
CLAMP GP-HYDRAULIC LINES
312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 320D, 320D GC, 320D L, 323D L, 324D, 324D L, 324D LN, 325D, 325D L, 326D L, 329D, 329D L, 329D LN, 330D L, 336D, 336D2, 340D2 L
312D, 312D L, 312D2, 312D2 GC, 313D, 313D2, 320D, 320D GC, 320D L, 323D L, 324D, 324D L, 324D LN, 325D, 325D L, 326D L, 329D, 329D L, 329D LN, 330D L, 336D, 336D2, 340D2 L
3273064
CLAMP
312E, 312E L, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336D2, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L,...
312E, 312E L, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336D2, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L,...
3406725
CLAMP
312E, 312E L, 314E CR, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F ...
312E, 312E L, 314E CR, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F ...
3468026
CLAMP
312E, 312E L, 314E CR, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F ...
312E, 312E L, 314E CR, 314E LCR, 316E L, 318E L, 320E, 320E L, 320E LN, 320E LRR, 320E RR, 323E L, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F ...
3272994
CLAMP
312E, 312E L, 316E L, 318E L, 320E LRR, 320E RR, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336D2, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 349D L, 349E, 349E L, 349E L HVG, 349E L...
312E, 312E L, 316E L, 318E L, 320E LRR, 320E RR, 324E, 324E L, 324E LN, 329E, 329E L, 329E LN, 336D2, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 349D L, 349E, 349E L, 349E L HVG, 349E L...
4306661
CLAMP
M318D MH, M322D MH
M318D MH, M322D MH
4305166
CLAMP AS
M318D MH, M322D MH
M318D MH, M322D MH