WolfPack DELTA 25 - User Manual

To Next Page

Safety Guide

This book has important information for use and safe operation of this machine. Failure to read this book

prior to operating or attempting any service or maintenance procedure to your concrete Grinder could

result in injury to you or other personnel, damage to the machine or to other property could occur

as well. You must have training in the operation of this machine before using it.

1.1 One operator, one machine. Attention- children and unauthorized personnel are not permitted in the vicinity of the

the machine while working.

1.2 This machine is only used for floor surface grinding and polishing.

1.3 Do Not start the machine when control panel shows "operation mode”or grinding plate does not touch the ground.

1.4 The machine adjusting bar has locking function in different positions, show by picture in this manual.

1.5 Make sure the machine has stopped running and emergency stop button is locked, when changing abrasives or

accessories. Should it be necessary, pull out the power or plug.

1.6 All necessary protective equipment, such as a hard hat, shoes, ear protection, safety glasses and face mask, must be

worn when operating machines.

1.7 Do no operate machine in the presence of explosive materials such as fuel, grains, solvent, thinners or other flammable

materials.

1.8 All electrical maintenance to be done by certified electrician only.

Note: Cut off all power supply before maintenance on machine.

1.9 Do not operate the machine when distribution box is opening.

1.10 Keep machine wire away from high temperature.

1.11 Keep electric equipment of the machine dry, and machine should be stored in a dry place.

Model Specifications

Voltage...................................................................220/240V 3 or 1 Phase

Motor Power..........................................................7.5HP(5.5kw)

Inverter Power.......................................................10HP(7.5kw)

HZ...........................................................................50/60HZ

AMP........................................................................19A

Rotating Speed.......................................................300-1800RPM

Water Tank............................................................. 7gal

Width......................................................................25''

Weight...................................................................440 lbs

1 Additional Weight.............................................. 66 lbs

3 Head

Page 1

www.wolfpackequipment.com (419) 302-0033

Holds 9 tools

Main Page

Need help?

Do you have a question about the WolfPack DELTA 25 and is the answer not in the manual?

This document describes the DELTA 25" concrete grinder, a robust piece of equipment designed for surface preparation and polishing.

Function Description

The DELTA 25" is a powerful machine primarily used for grinding and polishing concrete surfaces. It features a rotating disc system that allows for efficient material removal and surface finishing. The machine is designed to be user-friendly, with various controls and indicators to manage its operation. It can be used for a variety of tasks, including preparing surfaces for coatings, removing old coatings, and achieving polished concrete finishes.

Important Technical Specifications

The DELTA 25" grinder comes with several key technical specifications:

Head: 3 Head
Voltage: 220/240V, 3 Phase
Motor Power: 7.5HP (5.5kw)
Inverter Power: 10HP (7.5kw)
HZ: 50/60Hz
AMP: 19A
Rotating Speed: 300-1800RPM
Water Tank: 7gal
Width: 25"
Weight: 440 lbs
Additional Weight: 66 lbs
Holds: 9 tools

The machine incorporates an HD30 series vector control inverter, which allows for precise control over the motor's speed and direction. This inverter is equipped with an LED display panel for easy monitoring and adjustment of parameters.

Usage Features

The DELTA 25" grinder is designed with several features to enhance its usability:

Handle Adjustment Latch: Allows operators to adjust the handle to a comfortable working position.
Parameter Setting Area: Provides a dedicated interface for setting and monitoring operational parameters.
Control Panel: Centralized controls for starting, stopping, and adjusting the machine's functions.
Emergency Stop Button: A critical safety feature that immediately halts machine operation in case of an emergency.
Water Controller: Manages the flow of water to the grinding heads, essential for wet grinding applications to control dust and cool the tools.
USB Port: For potential data transfer or software updates.
Tool Box: Convenient storage for tools and accessories.
Carry Pole: Facilitates easier transport and maneuverability of the machine.
Oil Drain Hole: For convenient oil changes.
Adjustable Grinding Bar: The height of the operating handle and the whole base can be pulled down to the best state.
Magnetic Bottom: The bottom of the machine is magnetic, which helps absorb the diamond tool or adapter that absorbs the adhesive resin grinding disc.
Indicator Light: The indicator light (on the back) is on after power-on, and the panel parameters are displayed normally.
Vacuum Cleaner Connection: For dry grinding, connect the vacuum cleaner and connect to the suction port to ensure that the suction pipe has no air leakage. If wet grinding, be sure to fill full the floor with water. Do not only wet the floor in order to reduce dust, so that the resistance during the flooding process is abnormal and the motor load is overloaded.
Start Switch and Run Low Speed: Turn on the start switch and run from low speed to high speed to see if the machine is running smoothly. The speed is adjusted according to the ground conditions, and the general condition is 300-1500 rpm.
Low Speed Operation: Do not polish at low speed, especially on extremely poor ground. Low speed may not work, thus causing the motor to overheat and burn out.
FWD/REV Switch: Start the machine with the FWD/REV switch.
Speed Control Knob: Slowly rotate the speed control knob to adjust the required construction speed and enter the normal grinding state.
Red Brake Button: If you encounter an emergency, immediately press the red brake button and the machine will stop working immediately.
Unplug Power Plug: After the grinding is finished, unplug the power plug after the machine is stopped.
Protect the Machine: When starting and stopping work, the operator must protect the machine and keep moving the machine at a constant speed, to prevent damaging grinding discs and burning the floor.
Steel Bars: Avoid protrusions on the ground, such as steel bars.

The inverter programming interface includes several keys with specific functions:

PRG (Program/Exit key): Entry or exit programming key.
JOG (Jog key): In the mode of display panel control, jog start the Inverter.
RUN (Run key): In the mode of display panel control, press this key to run the Inverter.
STOP (Stop/Reset key): In the mode of display panel control, to stop the Inverter and reset fault.
M (Multi-Function key): Set certain function by F00.12.
Up Arrow: Increase key, to increase value or parameter.
Down Arrow: Decrease key, to decrease value or parameter.
SHF (SHF shift key): Selecting display parameter and shift.
ENT (ENT enter/Confirm key): Enter lower menu or confirm saving the data.

Maintenance Features

Regular maintenance is crucial for the longevity and optimal performance of the DELTA 25" grinder. The manual outlines several key maintenance procedures:

Daily Cleaning: After each working day, the machine should be cleaned and maintained.
Mud and Dust Removal: Remove mud and dust from the machine, especially the grinding disc. Use an air gun or water gun to flush the bottom. Do not flush the electrical parts with the water gun.
Oil Change: For 6 months of continuous or intermittent use, the gear oil (2 Liters) must be replaced. Check oil weekly.
Grinding Head and Disc Condition: Always check the condition of the grinding head and the grinding disc for damages or wear. When a grinding disc is replaced, it is better to replace all discs at the same time to ensure the quality of the floor.
Water Tank Cleaning: Clean water tank every 5-7 days to avoid sediment build up.
Storage: When the machine is not in use, it can be cleaned and stored in a safe dry place.
Moving the Machine: Insert carry poles, adjust handle to horizontal position, and lift machine as shown in the manual.
Tipping Over: Tip over the machine using pedal as shown in the manual.

The manual also provides troubleshooting tips for common issues:

Inconsistent Scratch on Floor:
- Machine standing still while running, must keep machine moving while running.
- Grinding method is not correct.
- Using incorrect pads or tools.
- Tools are uneven.
- Incorrect operation, call dealer for technical support.
Machine Wobbles During Operation:
- Check ground level for level difference.
- If level difference is serious (2mm above), first repair with the angle grinder machine.
- Then, grind slowly from higher level to lower level with constant speed and shape moving.
- Make sure pad holders are tight.
- Make sure all pads are the same.
- Make sure pads are on same level.
- Adjust connector between machine frame and machine base, keep the pad holders and wheels in the same level.
Machine Suddenly Stops Running (Over Current Protection):
- Tap the STOP button, then after 5 seconds tap the RUN button to restart. Gently press the handle when restarting to make sure pad holder has small friction which will restart easier.
Machine Uttered Low Buzz When Turned On and Off:
- There is dust in the motor impeller.
- Motor burnt out.
Machine Has Abnormal Sound During Use:
- Rubber pad is damaged, which causes collision of grinding plate. Replace with new rubber pads.
- Lack of lubrication. Add lubrication.
- Bearing or drive shaft is damaged and needs replaced.
Machine Will Not Run/Start:
- Check plug for proper connection-on machine AND at wall outlet.
- Check building circuit breaker.
- The Emergency Stop switch is pressed.
- Look at the Inverter parameters and debug according to the "ERR" instructions below.
  - ERR 1 (Open-phase at input side): Open-phase infrequency inverter three phase input power phase. Check three phase input power and wiring.
  - ERR 2 (Output grounding): Frequency inverter has device grounding short circuit at the output side. Check peripheral device, grounding line, motor insulation.
  - ERR 6 (Keyboard communication fault): 1-Keyboard wiring fault, 2-Keyboard communication component damaged. Check the Keyboard wiring. Ask for technical support.
Machine Plumbing Barrier:
- Water switch is damaged.
- Warping of water pipe. Replace with new pipe.
- Water pipe or water tank has dirt build up and needs cleaned.
Poor Dust Collecting During Wet Polishing:
- Dust collection tube is damaged and needs replaced.
- Dust cover is damaged or installed improperly which causes lack of vacuum.

WolfPack DELTA 25 Specifications

General

Brand	WolfPack
Model	DELTA 25
Category	Cleaning Equipment
Language	English