Liftmaster SL595 & SL595GL Slide Gate Parts
LiftMaster SL595 & SL595GL Replacement Parts
Genuine LiftMaster replacement parts for the SL595 and SL595GL commercial slide gate operators — the heavy-duty pad-mount slider with a 20:1 gear reducer, torque limiter and clutch, rated to 2 HP. Use the exploded diagram above to find the key number for the part you need, then click any part number in the tables below.
Nine motor options. Ref 1 spans 1/2 HP to 2 HP across single phase, three phase and 575V — the widest range of any operator in the range. Read the motor data plate before ordering.
Two parts are superseded. The chain guard is now supplied as K10-30702-2 and the mounting bracket as K10-30699-1; the original 10-30702M and 10-30699 are no longer available.
Control box parts are on their own page — see SL575 / SL585 / SL595 control box parts.
Common SL595 Repairs
| Symptom | Usual cause | Parts to check |
|---|---|---|
| Gate slips or stalls under load | Clutch disk or torque limiter | K39-10541 clutch disk, K75-12858 torque limiter assembly |
| Motor runs but the gate does not move | Gear reducer | K32-10540 gear reducer, 20:1 |
| Gate overruns or stops short | Limit switch or limit nut | K23-2016 limit switch, K13-10024 limit nut, K75-18620 limit box |
| Chain slack, jumping or noisy | Chain, idler sprocket or idler shaft worn | 19-3025 chain, K305-153613 idler sprocket, K11-3602 idler shaft |
| Grinding or play at the drive shaft | Pillow block bearing or drive shaft | K12-3601 pillow block bearing, K72-18615 drive shaft kit |
| Erratic travel or missed counts | Hall effect sensor | K74-G0589 hall effect sensor kit |
| Gate will not reset after an obstruction | Reset switch | K23-34815 reset switch |
| Condensation or cold-weather faults | Heater kit not fitted or failed | K50-18423 heater kit, 71-6532448 230V modification |
Gate Operator Repair & Service Parts
| Ref | Part # | Description |
|---|---|---|
| 1 | K20-1050C-2P | Motor, 1/2 HP, 115/230V, 1PH, CF |
| 1 | K20-3050C-4P | Motor, 1/2 HP, 230/460V, 3PH, CF |
| 1 | K20-3050M-5 | Motor, 1/2 HP, 575V, 3PH, BM/CF |
| 1 | K20-1100C-2P | Motor, 1 HP, 115/230V, 1PH, CF |
| 1 | K20-1150C-2P | Motor, 1-1/2 HP, 115/230V, 1PH, CF (no longer available) |
| 1 | K20-3100C-4P | Motor, 1 HP, 230/460V, 3PH, CF |
| 1 | K20-3100M-5-H25 | Motor, 1 HP, 3PH, L5 |
| 1 | K20-3200C-5 | Motor, 2 HP, 575V, 3PH, CF |
| 1 | K20-3200C-4P | Motor, 2 HP, 230/460V, 3PH, CF |
| 2 | K32-10540 | Gear Reducer, 20:1 |
| 3 | 10-30702M | Chain Guard — discontinued, superseded by K10-30702-2 |
| 4 | K11-3602 | Idler Shaft |
| 5 | K15-3619 | Sprocket, 50B19T, 1-1/4" x 1/4" |
| 6 | K305-153613 | Idler Sprocket |
| 7 | K10-3209 | Gate Bracket |
| 8 | K11-3503 | Take Up Bolt |
| 9 | 19-3025 | Chain, #50 x 471, NP |
| 10 | 44-30703 | Enclosure, SL595 |
| 11 | K82-QN43-12 | Screw, 7/16"-14 x 12 |
| 12 | K91-G0149 | Idler Bolt |
| 13 | 10-30699 | Mounting Bracket — discontinued, superseded by K10-30699-1 |
| 14 | K001C3196-3 | Antenna, 315MHz |
| 15 | K23-2016 | Limit Switch |
| 16 | K13-10024 | Limit Nut |
| 17 | K74-G0589 | Hall Effect Sensor Kit |
| 18 | K12-3601 | Pillow Block Bearing |
| 19 | K39-10541 | Clutch Disk |
| 20 | K19-4853 | Chain, #48 x 53, No ML |
| 21 | 19-4071 | Chain, #40 x 71, No ML |
| 22 | K19-40ML | Master Link, #40 |
| 23 | K23-3001 | On/Off Switch, 125/277VAC, 20A |
| 23 | K23-3005 | On/Off Switch, 125/277VAC, 20A |
Parts Not Shown in Diagram
| Ref | Part # | Description |
|---|---|---|
| — | K23-34815 | Reset Switch |
| — | K80-33800 | Padlock Kit |
| — | K23-30716 | Stop Switch, 125VAC, 6A |
| — | K87-E-118 | E-Ring, Idler Shaft |
| — | 71-6532448 | Heater Kit Modification, 230V |
| — | K29-32410 | Alarm Kit |
| — | K50-18423 | Heater Kit |
| — | K77-36502 | Variable Speed Controller |
Service Kits
| Ref | Part # | Description |
|---|---|---|
| K1 | K75-18618 | Disconnect Kit |
| K2 | K75-12858 | Torque Limiter Assembly |
| K3 | K75-18620 | Limit Box, SL595 |
| K4 | K72-18615 | Drive Shaft Kit |
| K5 | K75-18493 | Chain Guide Kit |