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Toyota Skid Steer Loader SGK6 SDK6 SDK8 Factory Workshop Manual download

- Safety first — do these before you begin
- Park on level ground, engage parking brake, shut off engine, remove key, and disconnect the negative battery terminal to prevent accidental starts.
- Chock wheels front and rear with heavy-duty wheel chocks rated for the machine’s weight.
- Relieve hydraulic system pressure per the operator manual (cycle controls, run engine then shut off, follow model-specific bleed steps) to avoid unexpected movement.
- Wear eye protection, heavy gloves, steel-toe boots, and a hard hat if working under raised components.
- Never rely on the loader arms or hydraulic circuits to hold weight; always use mechanical stands or jack stands rated above the machine’s weight.

- Tools you need (detailed description and how to use each)
- Socket set (metric and standard, deep and shallow sockets)
- Use for removing and installing mounting bolts and nuts; deep sockets reach recessed nuts. Use the correct-size socket to avoid rounding fasteners.
- Ratchet and extensions
- Use for turning sockets in tight spaces; extensions get the socket into recessed areas.
- Combination wrenches (open-end and box-end)
- Useful where a ratchet can’t fit; box-end distributes load across flats to avoid slipping.
- Impact wrench (12V/18V cordless or air) — optional but very helpful
- Speeds removal of stuck bolts; use carefully to avoid over-torquing on install. If used, finish tightening with a torque wrench.
- Breaker bar
- Provides extra leverage for stubborn bolts; do not use on torque-limited fastenings for final torque.
- Torque wrench (click-type, appropriate range for mount bolts)
- Required to tighten bolts to proper specification; prevents under- or over-torquing.
- Hydraulic floor jack (heavy-duty, capacity >= weight of transmission/assembly or half machine) and a block of hardwood
- Supports the transmission while you remove mounts; place hardwood between jack saddle and transmission to protect castings.
- Transmission jack, engine hoist, or shop crane — recommended if transmission is heavy or not easily supported by floor jack
- Provides safer, controlled support and movement when lowering/raising the transmission assembly.
- Jack stands or heavy-duty blocking rated above the loader’s weight (mechanical stands under frame)
- Provide stable support for the machine if you need to raise it; DO NOT rely on the jack alone.
- Pry bar and large flat screwdriver
- Helps align bolt holes and remove stuck mounts; use gently to avoid damaging mounting bosses.
- Penetrating oil (e.g., PB Blaster) and wire brush
- Loosens rusted threads and cleans mating surfaces before reassembly.
- Hammer and dead-blow hammer
- For freeing stuck parts; use a dead-blow to avoid damaging metal surfaces.
- Punches and drift pins
- For driving out seized mounting bolts or locating pins if present.
- Anti-seize compound and thread locker (medium strength)
- Anti-seize on bolts that might seize; thread locker on bolts that have locking requirements—follow manual.
- Replacement fasteners (grade 8 bolts/nuts or OEM) — buy new if bolts are stretched, corroded, or single-use
- Replacing these ensures safe clamping force; old bolts can fail.
- Shop manual or service manual for Toyota SGK6/SDK6/SDK8
- Contains torque specs, diagrams, and model-specific procedures; essential reference.
- Flashlight/headlamp and mechanic’s creeper
- Improves visibility and comfort under the machine.

- Extra tools you might need and why
- Hydraulic press or bushing driver set
- If the mount uses a pressed-in rubber bushing that must be removed and installed separately; a press makes this feasible. If you don’t have one, buy the complete mount assembly pre-pressed.
- Engine hoist/cherry picker or crane
- Needed if the transmission must be moved away from the frame to access mounts or if supports are inaccessible with a floor jack.
- Impact gun + torque stick (for removal only)
- Saves time removing bolts; never use impact gun for final torque—use torque wrench.

- Parts that may need replacement and why
- Transmission mount assembly (rubber/metal bonded mount)
- Most common failure: rubber degrades, cracks, or separates, causing vibration, misalignment, or stress on the transmission case. Replace the entire mount assembly if the rubber is damaged or the metal sleeve is corroded.
- Mounting bolts, nuts, washers, and lock plates
- Replace if corroded, stretched, thread-damaged, or specified as torque-to-yield/single-use in the manual; new fasteners ensure clamping integrity.
- Replacement rubber bushings (if mount design allows bushing replacement)
- If bushing alone is worn but mount body is sound and the bushing can be pressed out and replaced.
- Crossmember or bracket (if cracked or bent)
- Inspect frame mounting points; if damaged, replace or repair because new mounts won’t hold correctly on compromised structure.
- Transmission fluid and filter (inspect, may be recommended if disturbance)
- Not typically required for mount replacement but inspect for leaks and contamination and service if needed.
- OEM part recommendation
- Use Toyota OEM mount or a heavy-duty aftermarket part specified for SGK6/SDK6/SDK8. Match part by model and serial number—dealership or official parts manual will supply the exact part number.

- Procedure (stepwise actions, concise)
- Prepare the machine: park level, chock wheels, disconnect battery, relieve hydraulics, consult shop manual for any model-specific preparation.
- Gain safe access: raise loader if necessary using the boom lift points and support the machine securely on stands or blocks rated above gross weight; remove any access panels to reach the mount.
- Support the transmission: position a hydraulic floor jack with a wood block under the transmission or the transmission crossmember. If available, use a transmission jack or hoist to take the weight—do not rely on hydraulics alone.
- Clean and inspect fasteners: spray penetrating oil on mounting bolts and allow soak time, brush out dirt and corrosion so bolt heads and nuts are visible and accessible.
- Loosen and remove mount bolts: back off nuts/bolts evenly, use breaker bar or impact for stuck bolts. Keep parts in order and note orientation of the mount. If bolts are seized, use heat carefully (oxy/propane) only if you know what you’re doing—avoid near fuel/hydraulic lines.
- Lower support slightly to relieve load and remove mount: once bolts out, carefully lower jack a small amount and remove the mount. Use pry bar gently to free mount from mating surfaces.
- Inspect mounting points and transmission casing: check for cracks, elongation of holes, or damaged welds. If any structural damage, repair before installing new mount.
- Prepare new mount: compare old vs new for fit and orientation. Apply anti-seize to bolt threads where appropriate and thread locker where manual requires.
- Install new mount: raise transmission slightly to align mount holes, insert bolts loosely by hand to avoid cross-threading, then torque evenly to the shop manual’s specified torque using a torque wrench.
- Re-check alignment: confirm transmission and drive components align correctly and that there is no binding or interference; tighten to final torque.
- Reassemble access panels and lower machine: remove support jacks slowly while watching for shifting; lower to ground and remove jack stands and wheel chocks.
- Final checks: reconnect battery, start engine briefly and cycle through drive controls with parking brake on to check for unusual vibration or noise. Inspect for fluid leaks and re-torque bolts after short test run if the manual recommends.

- What to watch for and test after replacement
- Any new vibrations, noises, or leaks when operating — stop immediately if present.
- Check bolt torque after 4–8 hours of operation or after first few uses (per service manual).
- Verify there is no play where mount meets frame or transmission; if movement persists, re-inspect fasteners and mounting surfaces.

- Common beginner mistakes and how to avoid them
- Relying on hydraulic pressure or boom to hold the machine — use mechanical stands and jack stands.
- Reusing corroded or stretched bolts — replace fasteners to OEM spec.
- Not supporting the transmission properly — always use a jack/hoist rated for the load and protect the casting with wood blocks.
- Over-tightening with an impact gun on final torque — always finish with a torque wrench to the specified torque.

- Final notes and references
- Always follow the Toyota SGK6/SDK6/SDK8 service manual for model-specific steps, torque values, and safety procedures.
- If you are unsure about supporting the transmission or whether the mount is integrated with other components, get help from a qualified mechanic. If pressed-in bushings are involved and you lack a press, buy the full replacement mount assembly rather than trying to re-bush it at home.
- Replacement parts: order the OEM transmission mount assembly for your model from a Toyota parts dealer or use an aftermarket mount specified for SGK6/SDK6/SDK8; replace associated bolts and washers at the same time.

- Quick required-parts checklist to buy before starting
- OEM/new transmission mount assembly (or bushing kit + new mount bolts if manual allows)
- New grade-appropriate bolts/nuts/washers (or OEM fastener kit)
- Thread locker and anti-seize
- Penetrating oil and cleaning supplies

- Quick required-tools checklist to have on hand before starting (minimum)
- Socket set, ratchet, extensions, combination wrenches, breaker bar, torque wrench
- Heavy-duty floor jack + wood block, jack stands or blocking
- Penetrating oil, pry bar, hammer, flashlight
- Work gloves, eye protection

- If you run into seized bolts, structural damage, pressed-in bushings you cannot remove, or you lack a proper transmission support — stop and arrange a shop repair.
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