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How do you fit a new drive belt to a rockworth compressor because there doesn't seem to be ant adjustment

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If this is a small compressor say 2 hp you leave everything alone make sure you have the right size belt and stretch it on like a rubber band.. The belt will be quite tight but thats the way they come. If you are concerned that the new belt is too tight or too loose mark the position of you motor with a felt pen remove the belt and move the motor forwards or backwards a small amount in line with your marks, then refit the belt. The main thing is that the motor shaft stays parrallel or close to it with the drive shaft of your pump.

Posted on Jan 17, 2013

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Posted on Jan 02, 2017

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This could be an assembly error at the company. There are three valves in a compressor, one is an intake, one is an exhaust, one is an unloader. The easiest way to check is to put your hand on the intake air filter to check for suction. If there is suction then the valve is ok on the intake, if it flutters then it is bad or missing. Locate the on off switch and there should be a valve that unloads the pressure from the compressor, see if that is leaking.

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You changed the belt that drives the brushroll, it is a flat stretch belt. The V belt also should be replaced every year or two max. It will not be stretched out like the flat belt but with normal use the side of the v will of wear off and the belt will be a little thinner which can cause it to slip on the pulley. The V belt drives the transmission. The flat belt goes from the transmission to drive the brushroll. The burning smell could come from the V belt if it's slipping real bad.

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You could try this link.
This is for megadyne tb2 310 belt (nlh6ltCOM)

http://www.solenttools.co.uk/performance-power-drive-belts/performance-power-compressor-drive-belt-nlh6ltcom-2051157-331171-.php

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How to change altenater belt on 87' cabi



INSPECTION

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will usually start at the inner edge of the belt and run outward. All worn or damaged drive belts should be replaced immediately. It is always best to replace all drive belts at one time, as a preventive maintenance measure, during this service operation.


CHECKING TENSION AND ADJUSTMENT

See Figure 1
The belt tension on most driven components is adjusted by moving the component (alternator, power steering pump etc.) within the range of a slotted bracket. Some brackets (toothed) use a rack and pinion mechanism which moves the alternator side-to-side to adjust the belt tension. With this configuration, no prying tools are required. On Quantum (except 5 cylinder) and Fox models, the air conditioner compressor drive belts are adjusted by varying the number of discs (shims) between the halves of the crankshaft pulley. Before adjusting the belt tension on any engine, look at the mounting and determine what kind of bracket is used.
To check belt tension, push in on the drive belt about midway between the crankshaft pulley and the driven component. If the belt is less than 39.4 in. (1m) long, it should deflect between 0.80-0.120 in. (2-5mm). For longer belts, it should deflect between 0.40-0.060 in. (10-15mm). Belt size is usually printed on the back side of the belt. If it can't be read, it's probably time to replace it.


0900c1528026638b.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 1: To check belt tension, push in on the drive belt about midway between the crankshaft pulley and the driven component
Slotted Brackets
See Figures 2, 3 and 4

  1. Loosen the adjustment nut/bolt in the slotted bracket. Slightly loosen the pivot bolt.
  2. Pull (don't pry) the component outward to increase tension. Push inward to reduce tension. Tighten the adjusting nut/bolt and the pivot bolt.



0900c1528026638c.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 2: Alternator mounting with slotted brackets

  1. Components, such as the power steering pump and some air conditioner compressors, may be mounted with a double slotted adjusting bracket using a threaded bolt and locknut to adjust and maintain tension. Loosen the locknut(s) and slightly loosen the bolt(s) in the slotted groove(s). Turn the threaded adjustment bolt(s) in or out to gain correct tension. Tighten locknut(s) and slotted bracket bolt(s).
  2. Recheck the drive belt tension, readjust if necessary.



0900c1528026638d.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 3: Some components use a double slotted adjusting bracket with a threaded bolt and locknut to adjust and maintain tension. Loosen the locknut (shown) before adjusting the tension bolt


0900c1528026638e.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 4: An extension is helpful when adjusting the tension bolt. Be sure to loosen the nut/bolt on the rear slotted bracket first
Toothed Brackets
See Figures 5 and 6

  1. Loosen the tension bolt and the alternator pivot bolt. These bolts should be loosened until the alternator swings freely under its own weight.



0900c1528026638f.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 5: Loosen the tension bolt (shown) and the alternator pivot bolt until the alternator swings freely under its own weight

  1. Adjust the V-belt by turning the nut on the tension bolt while checking the belt deflection with your thumb.
  2. Once the proper tension is achieved, tighten the tension bolt to 26 ft. lbs. (35 Nm). Tighten the pivot bolt to 15 ft. lbs. (20 Nm).
  3. Recheck the drive belt tension, readjust if necessary.



0900c15280266390.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 6: Adjust the V-belt by turning the nut on the tension bolt
Split Pulley
See Figure 7
On Quantum (except 5 cylinder) and Fox models, the air conditioner compressor drive belts are adjusted by varying the number of discs (shims) between the halves of the crankshaft pulley.

  1. Remove the nuts/bolts securing the tensioner plate and crankshaft pulley halves.
  2. Add or remove the amount of spacer discs between the pulley halves until the belt tension is correct.



0900c15280266391.jpg enlarge_icon.gifenlarge_tooltip.gif

Fig. Fig. 7: Belt adjusting shims on Quantum (except 5 cylinder) and Fox models. Extra shims are stored behind the tensioner plate on Fox and turbo diesel Quantums (shown)
If there are any shims left over, do not throw them away. On Fox and turbo diesel Quantum models, store the extra shims in front of the split pulley (behind the tensioner plate). On Quantums with 4 cylinder gas engines, store the extra shims behind the split pulley (in front of the crankshaft hub).

  1. Secure the pulley halves. Torque the pulley nuts or bolts to 15 ft. lbs. (20 Nm).


REMOVAL & INSTALLATION

If a belt must be replaced, the driven unit must be loosened and moved to its extreme loosest position (usually by moving it toward the center of the motor). After removing the old belt, check the pulleys for dirt or built-up material which could affect belt contact. Carefully install the new belt, it may appear to be just a little too small to fit over the pulley flanges. Fit the belt over the largest pulley (usually the crankshaft pulley at the bottom center of the motor) first, then work on the smaller one(s). Gentle pressure in the direction of rotation is helpful. Some belts run around a third or idler pulley, which acts as an additional pivot in the belt's path. It may be possible to loosen the idler pulley as well as the main component, making your job much easier. Depending on which belt(s) you are changing, it may be necessary to loosen or remove other interfering belts to get at the one(s) you want. Some models have a front engine mount installed through the air conditioner compressor belt circle. Support the engine and remove the mount prior to belt removal and installation.
When buying replacement belts, remember that the fit is critical according to the length of the belt, the width of the belt, the depth of the belt and the angle or profile of the V shape (always match up old belt with new belt if possible). The belt shape should exactly match the shape of the pulley; belts that are not an exact match can cause noise, slippage and premature failure.
After the new belt is installed, adjust it for proper tension. This is sometimes a three or four-handed job; you may find an assistant helpful. Make sure that all the bolts you loosened are retightened and that any other loosened belts also have the correct tension. A new belt can be expected to stretch a bit after installation so be prepared to re-adjust your new belt.
After installing a new belt, run the engine for about 5 minutes and then recheck the belt tension.

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1 Answer

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I would think that if you are mechanically inclined at all you should be able to do that. You are right must tanks are either generic in configuration or made be the same manufacturer. I would like at worse case you may have to drill a couple of new holes for mounting your compressor.

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I have a new Garmin 410 and really struggle to get it do download via the ANT agent.


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Once the USB ANT Stick is connected it should automatically start downloading.
Make sure the Garmin Communicator Plugin is up to date for Mac OS.
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When stopped in drive the steering wheel vibrates a lot when the air conditioner is on .There are already new motor mounts replaced could it be the adjustment of the idle screw ?throttle plate cleaning...


The belt tensioner can cause many of these problems, sometimes the serpentine or fan belt is replaced, but the tensioner is not given much thought, a tensioner that is going out, can cause the belt to not have enough tension to keep the battery charged by slipping, when the clutch on the ac compressor cycles on and off, if the tensioner is to loose, or not tight enough can cause the compressor to vibrate, it can cause wear on other parts attached to the belt even cause pre-mature wear on other pulleys. good luck!

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  • Removal of the Fan Shroud and Drive Belts
    • 1 Drain the cooling system. Place a waste oil collection pan underneath the petcock valve on the lower corner of the radiator. Open the petcock valve to drain the system.
    • 2 Remove the bolts that connect the fan shroud to the radiator core and remove the fan shroud.
    • 3 Loosen the alternator adjustment bolt and slide the alternator toward the engine. Remove the drive belt.
    • 4 Loosen the adjustment bolt for the air conditioning compressor, and slide the compressor toward the engine. Remove the drive belt.
    • 5 Loosen the adjustment bolt on the power steering pump and slide the pump toward the engine. Remove the drive belt.
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    • 1 Disconnect the bypass hose from the water pump by loosening the hose clamp and pulling the hose off the fitting.
    • 2 Remove the bolts that connect the water pump to the engine block, and remove the water pump and engine fan as an assembly.
    • 3 Remove the four retaining nuts that connect the fan assembly to the water pump. They will be located between the fluid coupling and the water pump pulley.
  • Installation of the Water Pump
    • 1 Attach the fan assembly to the new water pump by sliding the pulley then the fluid coupling onto the water pump and reinstalling the retaining nuts.
    • 2 Clean any old gasket material off the water pump mounting surface on the engine block.
    • 3 Place the new water pump gasket on the water pump mounting surface.
    • 4 Slide the new water pump into position and reinstall the mounting bolts.
    • 5 Reconnect the bypass hose by sliding the hose over the fitting and tightening the hose clamp.
  • Reinstalling the Drive Belts and Fan Shroud
    • 1 Reinstall the the drive belts for the power steering pump, air conditioning compressor and alternator. Tighten the adjusting bolts.
    • 2 Measure the deflection of each belt to make sure the belts are properly tightened. Measure deflection by placing a straight edge along the belt against the accessory pulley and the water pump pulley. Push down on the belt and measure the distance between the belt at the midpoint and the straight edge. It should be between 1/2 and 1/4 inch. Any more and the belt needs to be tightened. Loosen the adjustment and slide the accessory away from the engine to tighten.
    • 3 Drop the fan shroud into position and reinstall the bolts that secure it to the radiator.
    • 4 Close the petcock valve on the radiator and fill the cooling system with fresh coolant.
    • 5 Run the engine and visually inspect for leaks.



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    I need to know your engine size and which belt you need to install....alternator/power steering belt or the air conditioning compressor belt on the 3.0L engine?

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    This is for the 3.3L and 3.8L:

    5a04778.gif

    Accessory drive belt adjustment—3.3L and 3.8L engines

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