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What is the cost to get an answer to my question. How to remove pivot pin from back of the boom swing cylinder from a bobcat 331 so that the cylinder can be fixed.
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Check out the filters,and is the proper weight oil for the hydraulic been changed lately and refilled with correct oil. May have air in the line as well, bleed the line
A couple hours labor at most, probably $200-$300 or so. You can do it if you're mechanically inclined quite simply as long as you have a good work area to do so safely, I've done it a few times and I'm no Bobcat Specialist, just had to get it done in order to fix it because I had no choice! It's not bad at all!
Aug 21, 2015 - Posted by Robert Leib in bobcat 7 pin cable for swing boom, CID ... The CID Swing Boom, Prowler Swing Arm & Spartan Articulating Brush ...
ive heard of folks doing it without a crane but i would not try it , alignment is too critical with getting guides and stops back in and with nothing to move boom that would be too difficult
anyways: suspend boom end with double straps from crane , disconnect hydraulic/electric swivels/plugs at truck end lift end of boom slightly with boom all the way extended straight out , remove acess panel (both sides) at jct of upper/lower boom section . remove C clip one side drive out pin oppisite side (wiggle boom to clear pin) locate stops in lower section boom end unbolt , slowly pull upper boom with crane away take care of hydraulic lines and electric wires set on floor on wood cribbing , locate bottom of cylinder truck end find C clip and pin Might be behind a trim cover that might need to be remove drive out pin also remove bottom cylinder hyd hose connect crane to cylinder end move out a foot or so remove top cyliinder hydraulic hose then carefully slide out cylinider with crane , Note if your valves are not tight and new oil will leak back and cause boom base to sag when you unhook hydraulic hoses , your gonna need to block this up with wood cribbing just in case
reverse removal process to install new one , also i would not just install a new seal (you can) with out having cylinder recromed I'll bet it's rusty thats what tears the seals up
and allways replace entire oil volume in hydraulics your old seal is in old oil not good for the new one
Not sure would need to have a good look ,but i suspect a safety valve isnt closing properly causing thumping within the hydraulic system which is the vibration you can feel,shouldnt cost a lot to repair providing the faulty valve can be located so return to the dealer as they will have a good idea as yours isnt the first to go wrong iam sure
Inspect the fluid level in the master cylinder reservoir. Remove fluid from the reservoir until the level is lower then half way between the MAX and MIN levels.
Remove the tire and wheel assembly.
Install 2 wheel nuts to secure the rotor on the hub.
Remove the bottom brake caliper pin bolt.
Pivot the brake caliper body upward and secure out of the way. Do NOT disconnect the hydraulic brake flexible hose from the caliper.
Compress the piston back into the bore using a C-clamp.
Figure of brake assembly with caliper raised showing brake pads in mounting bracket
Remove the inboard and outboard brake pads from the brake caliper bracket.
To Install:
Install the brake pad retainers and both brake pads into the caliper bracket.
Pivot the brake caliper down over the brake pads and into the brake caliper bracket. Insert the lower brake caliper pin bolt and torque bolt to 70 ft-lb. (95 Nm).
Reinstall the tire and wheel assembly.
Lower the vehicle.
Refill the master cylinder. Pump the brake pedal several times to seat the pads against the rotor.
Check the master cylinder level and add fluid as necessary.
Inspect the fluid level in the master cylinder reservoir. Remove fluid from the reservoir until the level is lower then half way between the MAX and MIN levels.
Remove the tire and wheel assembly.
Install 2 wheel nuts to secure the rotor on the hub.
Remove the upper caliper mounting bolt.
Pivot the caliper down to access the pads.
Remove the inboard and outboard pads from the caliper bracket.
Remove the brake pad clips from the caliper bracket.
Compress the piston back into the bore using a C-clamp and the old inner pad.
To Install:
Install new brake clips in the caliper bracket.
Install the inboard and outboard pads in the caliper bracket.
Pivot the caliper up over the pads.
Reinstall the upper mounting bolt and tighten to 32 ft. lbs. (44 Nm).
Remove the 2 wheel nuts securing the rotor.
Reinstall the tire and wheel assembly.
Refill the master cylinder. Pump the brake pedal several times to seat the pads against the rotor.
Check the master cylinder level and add fluid as necessary.
click on this link directlyhttp://www.aepdirect.com/?option=shop&&page=shop.product_details&category_id=5371&product_id=4051 Caliper With Guide PinsDisconnect the
negative battery cable from the battery. Remove the wheel. Using an open wrench
hold the lower guide pin. Remove the bolt that secures the caliper. Pivot the caliper
up and then suspend it from the frame using mechanic's wire. To remove the
pads, slide the pads straight out. Pivot the caliper
up and then suspend it from the frame using mechanic's wire. To remove the
pads, slide the pads straight out. Clean the old bolt and apply thread locking compound. If the old
bolt can not be used install a new bolt. Hold the guide pin using a back-up
wrench when tightening the bolt. Using atorquewrenchtorque
the bolt to 26-ft. lbs. Install the wheels. Add oil to the master cylinder
reservoir. Reconnect the negative battery cable to the battery. Caliper With Sleeves and BushingsDisconnect the negative battery
cable from the battery. Remove the wheel. Remove the bolt that secures the
caliper to the carrier. Push the caliper up and pivot
the caliper bottom out of the carrier. Remove the pads and the anti-rattle
springs. Install the new pads by putting
the anti-squeal pads onto the caliper and then sliding the new pads onto the
carrier. Put the caliper top back into place. Remove the mechanics wire and
push the caliper up so that it pivots back into place and the bottom. Clean
the caliper mounting bolts. Install the caliper mounting bolts and using a
torque wrench, torque the bolts to 18 foot/pounds. Install the wheel. Add oil
to the master cylinder reservoir. Reconnect the negative battery cable to the
battery. This will help. Thanks please keep updated.please do rate the
solution positively .thank you for using fixya
No diagram...
The pivot bolt is the long bolt that holds the alternator to the frame.
If you loosen it, the alternator can "swing" with the pivot bolt as its .... well, pivot, or swing center.
The long bolt must be removed completely in order to remove the alternator.
Be sure to doisconnect the negative cable from your battery.
Step 1
Disconnect the negative battery cable from the battery. Remove the wheel. Using an open wrench hold the lower guide pin. Remove the bolt that secures the caliper.
Step 2
Pivot the caliper up and then suspend it from the frame using mechanic's wire. To remove the pads, slide the pads straight out.
Step 3
Using a C-clamp, compress the caliper piston into the bore. Insert the new pads by removing the mechanics wire and pivoting the caliper back into it's place.
Step 4
Clean the old bolt and apply thread locking compound. If the old bolt can not be used install a new bolt. Hold the guide pin using a back-up wrench when tightening the bolt. Using a torque wrench, torque the bolt to 26 foot/pounds. Install the wheels. Add oil to the master cylinder reservoir. Reconnect the negative battery cable to the battery.
Calipers With Sleeves and Bushings
Step 1
Disconnect the negative battery cable from the battery. Remove the wheel. Remove the bolt that secures the caliper to the carrier.
Step 2
Push the caliper up and pivot the caliper bottom out of the carrier. Remove the pads and the anti-rattle springs.
Step 3
Install the new pads by putting the anti-squeal pads onto the caliper and then sliding the new pads onto the carrier. Put the caliper top back into place. Remove the mechanics wire and push the caliper up so that it pivots back into place and the bottom.
Step 4
Clean the caliper mounting bolts. Install the caliper mounting bolts and using a torque wrench, torque the bolts to 18 foot/pounds. Install the wheel. Add oil to the master cylinder reservoir. Reconnect the negative battery cable to the battery.
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